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3D GeoModeller Tutorial Case Study A

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1. YMin 2000000 00 YMax 2010000 00 m Use Points ZMin 8000 00 ZMax 2000 00 m Use Points g Project Zone V Limit by Topography Advanced Mesh Parameters Warp Mesh m to topography SASN pi y ie Lv v vey Edo OK Close The model will take a significantly longer time to build a couple of minutes 3 To better reveal your rendered 3D model fully expand the Explore tree in the area of the 3D Geology model Use the short cut menu to Hide Show each volume or surface in turn Explore 3D View TutorialA3 a Formations TH Dykes i Faults Sections MW Drillholes g 30 Geology H BB DykeSeries I intrusiveSeries BB UpperSeries Hide p4 Surface SW_NE ES ae E Wireframe H ff LowerSeries ed 6 ff Basalseries Appearance Wp Grids and Meshes Delete 2 DTM Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 86 Contents Help Top 4 Back gt 4 Note the rendered 3D Model can also be clipped in viewing in directions orthogonal to the principle axes Choose Set Clipping Parameters from the 3D toolbar 2 Clipping Slide your choice of aligned axes to slice the model g 3D View Axis Aligned A v XY j 8000 0 3000 0 A J 2 003 100 2000000 0 2005000 0 2010000 0 E j 100 000 100000 0 105000 0 110000 0
2. Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 18 Contents Help Top q Back gt 11 Import prepared structural data into Section Another geologist in your team has created a Section1 interpretation for the project Import the data to the project The file is C GeoModeller GeoModeller Build tutorial TutorialA TutorialAl Data Sectionl UpperCover data Select the Section1 tab in the 2D Viewer a green tick will show upper left From the main menu choose Import gt 2D Geology to Section gt Contacts Structure BRGM i 49 Import 2D data to Section1 Section File Browse View p Help wf OK Close Choose Browse and open the data file Choose OK ai Topography B Y Section x 12 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM 4q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 19 Contents Help Top Parent topic Tutorial A1 A simple model with two formations 4 Back gt A1 Stage 4 Compute the 3D model Our project now contains sufficient data to compute a 3D model A1 Stage 4 Steps 1 From the main menu choose Model gt Compute OR From the Model toolbar choose Compute OR Press CTRL1 M Compute the Model Interpolate Geology and Structural Data i oo bt mo aml Contents Top Geology and Stru
3. Steps 1 Select data type to import File to Load 2 Parse CSV file 3 Select Columns to Import CSV File Lookin Completed_Project ny Recent Items My Documents A Te File name ee Files of type All Acceptable Files csv txt asc las 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 88 4q Back p Contents Help Top 3 Use Folder Button to go Up One Level gg CSV File Look in i CompletedProject Up One Level p a Recent Items My Documents Ly File name Computer Files of type all Acceptable Files csv txt asc 4 In the Data Folder find Drillhole H2 Densities csv gt Open and then gt Next a CSV File E Drillhole_H6_ Densities csv File name Drillhole_H6_Densities csv Files of type All Acceptable Files csv txt asc 4 w 5 Next parse the CVS file Step 2 of 3 Two issues need resolving First for the Text Qualifier tick Single Quote Second for the File reading parameters change Data start at row to 2 Then gt Next g CSV Data Import Steps Parse CSV file Step 2 of 3 Select data type to import Decimal separator V Dot E Comma File reading parameters Data start at row 1 Preview entire file 50 Fixed columns Tre
4. GeoModeller User Manual Tutorial A First GeoModeller Model 59 Contents Help Top 4 Back gt A4 Stage 2 Presence of a finite or infinite fault Parent topic Tutorial A4 Geology with a fault Contents Top Using the geology map plotted from your modelling in Tutorial A3 you decide to return to the field to clarify aspects of the geology In particular you suspect the presence of an oblique slip fault in the south east of your project area A thorough study of the outcrop confirms your ideas You now observe evidence for a normal fault on two different outcrops It was possible for you to measure dip and azimuth 80 towards 130 on one of the fault planes These observations raise questions about your geological assumptions and cast doubt on the validity of the current 3D model of the project area Before integrating the new observations into the model we need to create a fault as an object that can be used in the project You will see this is a similar process to the creation of a geology formation A4 Stage 2 Steps 1 Create a fault with the following parameters Use the following parameters make sure you enter the name exactly as shown case sensitive no spaces as we will import data matching this name later Fault infinite e Name SW_NE Fault e Colour Purple RGB 300 100 82 Choose main menu Geology gt Faults Create or Edit Enter the parameters given above and click Add
5. Normal Reverse Overturn Automatically Re edit J Automatically Update Coordinates Help S Undo yf Create Fd close Check the impact of your modifications to MiddleCover Recompute the 3D model and plot it with lines and then fill in Section1 wf Sectiont wf amp Section Ihepotpieapiiy spiotp ey 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 84 Contents Help Top 4q Back gt Also plot the model with lines and then fill in Section2 Section2 Section2 Taywograpky oie ator y 7 Check the comparisons of drillholes H1 H2 amp H3 with the modelled geology 5 Hi Drillhole Properties H3 OO Drillholes Edit Format Help Drillhole logs DrillholeH3 at X 100795 Y 2005390 z Geological Log Geological Model Misfit 0 0 E Hi Drillhole Properties H2 A W E EA Drillholes Edit Format Help Drillhole logs DrillholeH2 at X 103850 Y 2006920 A Geological Log Geological Model Misfit 5 53 GG Hi Drillhole Properties H1 Ea Drillholes Edit Format Help Drillhole logs DrillholeH1 at X 108204 Y 2009100 p Geological Log Geological Model Misfit 0 05 Better in that the base of the MiddleCover is correctly modelled However the modelled Granite contact could still be improved in relation to drillhole evidence
6. From the main menu choose choose Model gt Plot the Model Settings OR From the Model toolbar choose Plot the Model Settings OR Press CTRL D Check Show fill and clear Show lines Choose OK In agreement with the defined stratigraphic pile the LowerCover blue is unconformable on the Basement pink On the other hand the MiddleCover orange and the UpperCover yellow are concordant with each other sub parallel 5 Plot the model using fill on the topographic surface Select the Topography tab in the 2D Viewer Plot the model using fill as you did in earlier steps You have just created the geology map derived from your 3D model 6 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 36 Contents Help Top 4 Back gt Tutorial A3 Intrusive bodies Parent topic Tutorial A A First Geology Modelling Experience In this tutorial we will add intrusive bodies to the geology A granite body is created from surface data and interpretation of a seismic section A dyke is created from surface data Using GeoModeller you will Open an existing project Import geological data onto surface topography and a cross section Create a dyke Manage depositional and intrusive rock relationships Render new model geology sections that are automatically coherent with all other sections The starting point is the
7. Reverse Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 87 Contents Help Top 4 Back gt Tutorial A6 Adding down hole numerical data Parent topic Tutorial A A First Geology Modelling Experience In this tutorial e lt A6 Stage 1 The project e A6 Stage 2 Import down hole density data for H2 e A6 Stage 3 Display down hole density data for H2 e A6 Stage 4 Edit the density log amp display the histogram for H2 A6 Stage 1 The project The start point of this tutorial is the completed work from Tutorial A5 Incorporating drillhole A6 Stage 1 Steps 1 Open your completed project from Tutorial A5 or the solution provided C GeoModeller GeoModeller2013 Build tutorial TutorialA Tutor ialA5 Completed Project TutorialA5 xml 2 Save the project with a new name in the folder you are using for your tutorial data Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 Build tutorial TutorialA TutorialA5 Completed Project TutorialA5 xml Do not overwrite it A6 Stage 2 Import down hole density data for H2 Contents Top A6 Stage 2 Steps 1 From the main menu choose Import gt Drillhole gt Attributed Data into Existing Drillholes 2 From CSV Data Import wizard choose Browse g CSV Data Import Select data type to import Step 1 of 3
8. Authors BRGM Intrepid Date 18 6 2007 12 57 2 Description A simple model with two formations Projection NTF Lambertilet Height Datum local Unit m Precision Project Extent KkMin 100000 0 kMax 110000 0 KExtent 10000 0 m Min 2000000 0 Max 2010000 0 YExtent 10000 0 m Min 8000 0 Max 2000 0 ZExtent 10000 0 m 3 Complete the fields as given above and choose OK GeoModeller displays the Project Creation Successful dialog box Project Creation Successful Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A Introduction 4 Contents Help Top Contents Top 4 Back gt 4 Import the topographic surface of your project When you import the topographic surface GeoModeller opens a 2D Viewer showing a 2D plan view of your project 1 e the topographic surface In this view you can enter geology observations from your field mapping and see the geology map plotted from the computed 3D geology model The surveyor has mapped the ground with GPS processed the data and generated a Digital Terrain Model DTM The file is supplied Choose Load from a DTM in the Project creation successful dialog box 3D GeoModeller displays the Load topography from a DTM dialog box Choose Browse and select C GeoModeller GeoModeller2013 build tutorial TutorialA Tutor i1alA1 Data DTM semi Also in the Load topography from a DTM dialog box load the
9. Plot model geology 7 Show fill Show lines Show trend lines Formations Formations Number of trend lines i o eee i Select All Deselect All Invert Selec P Hep of x of Apply f Apply to All Fd close Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 22 Contents Help Top Contents Top 4q Back gt This time set alternative parameters e Check Show fill and clear Show lines e Default values for the other parameters Choose OK 3 View the filled plot in the 3D Viewer May already have auto refreshed in 3D Click inside the 2D Viewer From the shortcut menu in Section1 of the 2D Viewer right mouse click the background choose Show Modelled Geology Polygons in 3D Viewer Examine the results in the 3D Viewer BD View 4 Save your project A1 Stage 5 Section1 plot discussion GeoModeller plots the model geology for Section1 in the form of geology contact lines In effect this process plots the intersection of Section1 with the 3D model GeoModeller renders the base of UpperCover in the line colour of the UpperCover formation Since the geological pile is referenced to the bottom of geology formations the LowerCover UpperCover contact is known only as the bottom of the UpperCover formation Observe how the geology contact plotted from the
10. af Apply Close Select Build Faults only Type Surface Accept other defaults Choose OK After visualising the fault in 3D you decide to continue your interpretation with an infinite fault and re set the parameters of the fault SW_NE_ Fault to infinite fault Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 66 Contents Help Top 4 Back gt 11 Re set the fault parameters to infinite Choose main menu Geology gt Faults Create or Edit In the Faults Create or Edit window Select the SW_NE Fault And Choose Attributes bs select Infinite Select OK x Faults SW_NE_Fault gg Fault Properties SW_NE_Fault Manage Fault Properties Infinite Fault Create a Fault gpi Name SW_NE_Fault Name SW_NE Fa 12 Re compute the Model and plot the model with lines in Section Use instructions from the previous steps to re compute the model fault only and plot the infinite fault in Section1 IL 3 6 0D g Ka ph y In Section1 GeoModeller plots the fault with a dip of 80 towards the south east consistent with your field measured strike and dip data 13 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 67 Contents Help Top 4 Back gt A4 Stage 3 Revising t
11. e lt AS5 Stage 2 Import drillhole data e A5 Stage 3 Re compute including the drillholes amp modify the Granite contact e lt A5 Stage 4 Re compute including the drillholes amp modify the MiddleCover contact A5 Stage 1 The project Parent topic The start point of this tutorial is the completed work from Tutorial A4d Geology with a fault Tutorial A5 leanne A5 Stage 1 Steps drillhole data 1 Open your completed project from Tutorial A4 or the solution provided C GeoModeller GeoModeller2013 Build tutorial TutorialA Tut orialA4 Completed Project TutorialA4 xml 2 Save the project with a new name in the folder you are using for your tutorial data Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 Build tutorial TutorialA TutorialA5 Completed Project TutorialA5 xml Do not overwrite it Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 74 Contents Help Top 4q Back gt A5 Stage 2 Import Drillhole data Parent topic Tutorial A5 AS Stage 2 Steps Incorporating 1 Erase the model data from all 2D sections drillhole data Select each Section in turn Model gt Erase All Model Geology OR Short cut right click in the background of the 2D window Erase All Model Geology Repeat for each 2D section 2 Import drillholes From the main menu choose Import gt Dril
12. e Series to Interpolate Select All e Faults to Interpolate Deselect All e Sections to Take into Account Select All 5 Plot the model geology as filled polygons in Section1 6 Save your project A4 Stage 3 Discussion The result shows that the GeoModeller took into account the new geology data and associated orientation data The model of the basal contacts of the LowerCover and the MiddleCover are forced to twist to honour the new observations The basal contact of the UpperCover is only slightly affected since there are no structural data providing constraints to the right of the normal fault position It is now time to take the fault into account and incorporate its effect in our model Before recomputing the model we need to learn about linking faults and series Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 71 Contents Help Top 4q Back gt A4 Stage 4 Setting the links between faults and geology series Parent topic When we define links between faults and series we are stating which fault interacts with which pees series of geology formations In our project area the oblique slip fault displaces the Basement a TER Dyke and two Cover series but does not affect the Granite A4 Stage 4 Steps 1 Link faults with geology series as follows mess From the main menu choose Geology gt Link Faults with
13. i j u v X y z 65 990 38 761 100000 000 i 2010000 000 BI 0 000 110000 000 2009429 161 110000 000 110000 000 2000570 839 110000 000 WW N TS In the Section panel GeoModeller warps the image to correctly geo locate this point Section A Q Al 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 46 Contents Help Top 4q Back gt 5 Repeat steps 3 4 for the top right and bottom right registration points corresponding to alignment points 2 and 3 Alternatively you can place all 3 points on the left Image side then edit all three points in the U V editor together Image 727 x 644 A ajale ite Section Q IE N dh m 110000 E u 2010000 N 4 m p 4 p i 719 164 j 117 565 l u 101380 368 v 1998773 006 x 101380 368 y 1998773 006 z 27 742 i Alignment Controls Preview gt Move Point db AddPoint Delete Point Reset Points Preview Off On Continuous i j u v x y Zz i 65 990 38 761 100000 000 2010000 000 100000 000 2 653 174 39 402 110000 000 5 92010000 000 3 726 000 1643 000 110000 000 2000 570 839 110000 000 Image 727 x 644 Q Q AK E Section CIC AK m LS JES JL 48 JL Le 48 j 110000 E _ 44 2000000 N 4 m
14. left mouse click the tab of a chosen 2D Viewer then drag amp drop it to a new location Many 2D Viewer windows can be open at the same time by repeating the drag amp drop action until the workspace it suitably arranged pZ GeoModeller Project TutorialA2 C GeoModeller GeoModeller2013_x86_a00532ee0d50 TutorialA TutorialA3 Co Project Edit Section Geology Model Geophysics Interpolation Import Export View Window Help GeBEBSEl r FS FOF VA ei lt x r hr AQF S AOCBPF AA FIA BH 2D E Explore Sectiont 4 Dy 2dView o 3 TutorialA2 Eo wee aJ Formations H El Dykes Lenict aphy it Faults B Sections E aa Topography S Wy Drillholes H 30 Geology Wa Grids and Meshes gaea 2 Topography EJ EA Ta gt BHAA A TEETE Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 58 Contents Help Top Contents Top 4 Back gt 4 Erase all model geology from the 2D Viewer 5 6 7 8 Select a tab of the chosen 2D Viewer From the main menu choose Model gt Erase all model geology OR From the shortcut menu in the 2D Viewer choose Erase all model geology OR In the Model toolbar choose Erase all model geology n Repeat the step for every tab Erase all model geology from the 3D Viewer In the project Explore select Models and then choose Delete from its shortcut menu Confirm
15. then right click to reveal the following options Name To delete the shape from the model a repeat Visualise 3D Formation amp Shapes will restore To change Wireframe shading To change the Appearance While this display is revealed the remaining model parts are transparent To leave the model query mode ouse click on background behind the model 8 Save your project A3 Stage 4 Discussion The revised geology surface map enables you to target areas of interest for your next field mapping campaign Observe how GeoModeller models both the intrusives Granite and Dyke with cross cutting relationships to all other formations This is due to the Erode relationship that you assigned to the Granite and Dyke in the geological pile And also a consequence of both of these units being located chronological young within the stratigraphic pile The Granite and Dyke do not intersect in this model but if they did the current Rules of the Stratigraphic pile would dictate that the Dyke would cross cut the Granite because it is placed younger in the Stratigraphic Pile Try it And then try and reverse the order of Granite and Dyke in the Stratigraphic Pile Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 56 Contents Help Top 4q Back gt Tutorial A4 Geology with a fault Parent topic In this tutorial you will add
16. 4 Back gt A1 Stage 3 Create amp import geology data to the section Parent topic Tutorial A1 A simple model with two formations Contents Top Now we use geology observations recorded in the field We are interested in the points that define the contact interface or boundary separating our two geological formations depending on your terminology there are several names for the same concept These data points make it possible for GeoModeller to generate a 3D model of the two formations Our surface mapping database contains three points defining the location of the contact at the base of the Upper Cover formation Therefore we have geology contact data to input to the Topography section X East Y North Associated Formation 102176 2002973 UpperCover 102879 2007144 UpperCover 105082 2008433 UpperCover Also from surface mapping we have two pieces of orientation data structural data recording dip and dip direction X East Y North Dip Direction Polarity Associated Formation 102879 2007144 135 UpperCover 103744 2008364 151 UpperCover Note that X and Y are respectively East and North coordinate values for these data points In GeoModeller we refer to the full 3D coordinate of any point in terms of X East Y North and Z up In any general 2D section however the across and up axes of the section view do not necessarily correspond to East
17. Back gt 5 Now create the orientation data one by one From the 2D Viewer toolbar choose Create OR press C From the Points List Editor toolbar choose Delete all Points In the Topography section of the 2D Viewer click a location approximate for the first geology orientation data point The table from above is repeated here for convenience X East Y North Dip Direction Polarity Associated Formation 102879 2007144 135 UpperCover 103744 2008364 151 UpperCover 6 From the main menu choose Geology gt 2D Structural gt Create geology orientation data OR In the Structural toolbar choose Create geology orientation data OR Press CTRL G es fii Create Geology Orientation Data Geological Formations and Faults MUpperCover ssw Observation ID Section l Topography v Provenance j Unspecified v i Coordinates X 102879 Y 2007144 i Direction Dip Direction 135 Dip 28 i Polarity Normal Reverse Overturn Automatically Re edit 4 Automatically Update Coordinates Help S Undo f of Create EJ cose 7 Inthe pop up menu edit the X and Y values and enter the Dip Direction and Dip for the first point from the supplied data table 8 Ensure that UpperCover is the selected Formation Then choose Create 9 Now enter the X Y Dip Direction and Dip for the second point 10 Choose Create and then choose Close Vwi Topography bd section E9
18. EEA LowerCover UpperCover MiddleCover Are you sure you wish to delete these 3 objects Alternative method Select Section1 in the 2D Viewer From the 2D Viewer shortcut menu choose Data gt Delete gt Geology Data Choose Yes to confirm the operation Topd qraphy Exit from Delete mode From the 2D Viewer toolbar choose Select h OR Press S 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 68 Contents Help Top Contents Top 4 Back gt 2 Import new geology data into Section froma mif file as follows e Name of the file C GeoModeller GeoModeller2013 Build GeoModeller tuto rial TutorialA TutorialA4 Data MifMid Sectionl LowerMid dleAndUpperCover mif e Type of data Geology data e Formation Form In the 2D Viewer select Section1 From the main menu choose Import gt 2D Geology to Section gt Contacts MIF CSV S 3p Import 2D data to Sectionl section File Browse View P Help if OK x Close Choose Browse and open the specified MapInfo MIF MID file Choose OK Import 2D data to Section Section Section1 File 2aseStudyA TutorialA3 Data MifMid Section 1_LowerMiddleAndUpperCover mif Browse Type of data Geology Data Bottom Formation Form Geology Data Interface Geology Orientation Data Geological Polygon Background P Help wa OK Close E4 aaa
19. H6 Generalize Fields Colour 2250 Se E MMMM N a lj Geol mrormauor i Collar location or 2500 SI T i Y 2006920 Z 1557 98 2750 S tt eB Hoo Intervals B Granite 3 000 S E iiia H From 0 To 2480 Hi Not relaxed 3 250 ce fe ee ee ee em Whe From 2480 3 500 EE MEE gaei r i To 4000 User Defined Data 3750 en GN innon B fe Fields assays 7 4 000 i i g g New Densities Q 2650 2675 2 700 2 725 2 750 Pie o gt Density 5 3 Current_Model Q lt Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 93 Contents Help Top 4q Back gt Congratulations You have completed Tutorial A Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt
20. Series Click the table cells to check or clear a link Link Faults with Series Series Faults MEMA B DykeSeries GB intrusiveSeries HB UpperSeries z LowerSeries f BasalSeries JII Help Column Size Auto E ES E Reset T Save CSV File Vo x EJ cose Choose OK 2 Compute the model taking all data in account e Clear Faults only e Series to Interpolate Select All e Faults to interpolate Select All Note ensure the fault is selected e Sections to take into account Select All Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 72 Contents Help Top Contents Top 4 Back gt 3 Plot the model using lines in Section1 and review the modelled geology contacts 4 5 Recall that there were no data to the right of the fault for the MiddleCover UpperCover contact The model has proposed a geometry for this interface which is based on the other available data for the UpperSeries in other words the model has been used to predict the amount of throw for the fault on this section If you want experiment by adding new geology data contact points which modify the position of the interface Plot the model as filled polygons solid geology on Section2 As we would expect the fault does not have any influence on this part of the mode
21. a fault to your 3D model Tutorial A A First Geology Modelling Using GeoModeller you will learn how to Experience e Define a fault and its geometry e Revise your geology interpretation e Import data with the mif or mid interchange format e Define the relationships between faults and geology formations e Compute the 3D model taking a fault into account The starting point for this tutorial is the work completed in Tutorial A3 In this tutorial e A4 Stage 1 Open the project e A4 Stage 2 Presence of a finite or infinite fault e A4 Stage 3 Revising the geology interpretation e A4 Stage 4 Setting the links between faults and geology series A4 Stage 1 Open the project Parent topic The start point of this tutorial is the completed work from Tutorial A3 Intrusive bodies Tutorial A4 Geology with a A4 Stage 1 Steps ran 1 Open your completed project from Tutorial A3 or the solution provided C GeoModeller GeoModeller2013 Build tutorial TutorialA Tut orialA3 Completed project TutorialA3 xml 2 Save the project with a new name in the folder you are using for your tutorial data Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 Build tutorial TutorialA Tut orialA4 Completed project TutorialA4 xml Do not overwrite it Use the Project Explore and tabs to practise opening and closing sections in the 2D Viewer detaching amp re docking and arranging multiple 2D Vi
22. and North since a section may be oriented at any angle through the 3D project space Thus we express a coordinate position on a section in terms ofa more generic coordinate pair defined just for within the section of interest by U V For the Topography section a map view section U V will be identical to X Y i e East North coordinates For Section1 however U is a measure from the start or origin of the section and V is a vertical coordinate equal to the Z coordinate value Since the data points listed above were recorded on the topographic surface we must input these data on the Topography section and the X Y coordinates supplied in the above table will be the U V coordinates that we will need to input 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 15 Contents Help Top 4q Back gt A1 Stage 3 Steps 1 First create the geology contacts From the 2D Viewer toolbar choose Create OR press c From the Points List Editor toolbar choose Delete all Points a In the Topography tab of the 2D Viewer click the three geology contact data point locations approximately Ignore the lines joining the points in the display They are not relevant to the current task v a Topography ES amp section FA 2 Using the Points List Editor edit the U and V values of the points to be the correct coordinate values measured in the field
23. and supplied in the data table above Now Repeated X East Y North Associated Formation 102176 2002973 UpperCover 102879 2007144 UpperCover 105082 2008433 UpperCover Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 16 Contents Help Top 4q Back gt 3 From the main menu choose Geology gt 2D Structural gt Create geology data OR In the Structural toolbar choose Create geology data OR Press CTRL G fe Create Geology Data Geological Formations Dykes and Faults UpperCover gt Observation ID Section Topography Provenance Unspecified Associated Orientation Data Associated Latest Bearing Compute Orthogonal Dip Constant ji 0 Plunge Dip and Direction Dip 0 Direction Section Dip and Dip Direction Constant Dip 0 Direction Topography Polarity Provenance Reverse Overturned Thickness Observed Inferred Interpreted ModelConstructor Automatically Re edit P Help af Create X Close 4 Ensure that UpperCover is the selected in Geological Formations Dyke or Fault Section choose Topography Provenance choose Observed Then choose Create And Close Vo a Topography Ed Sectiont X Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 17 Contents Help Top 4q
24. button Save your project In the next step we describe methods for moving and deleting points graphically on Section2 and thus fixing the bottom of Granite inconsistency compared with the drillhole H1 data 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 79 Contents Help Top 4 Back gt 5 Deleting data points In GeoModeller we recommend that you should not use interpreted data points that are close to observed data In this case we have an observed geology contact in the drillhole so we want to delete the nearby interpreted point in Section2 e Zoom into the area of interest We want to delete the interpreted Granite contact point just to the right of the drillhole e To delete a point graphically using the mouse we need to change the mouse function to the delete points mode From the 2D Viewer toolbar choose Delete Points e Select the Granite contact point roll the mouse over to select data turns white e Click left to delete this point 6 Moving data points Now we want to move two or three of the nearby interpreted geology contacts such that the interpreted Granite contact in Section2 is better aligned with the drillhole H1 observation Using the instructions below move two or three points to shallower locations Recall that we don t want to place any interpreted points too close to the actual observed data i
25. density data for H2 A6 Stage 3 Steps 1 To display your recently imported down hole values Expand the Drillholes list in the Explore Menu left side The will become a Then Double click on H2 Explore t Topography EJ W 3 TutorialAs H A Formations Drillhole Properties H6 x H Dykes Drillholes Edit Format Help H i Faults Drillhole logs H gil Sections DrillholeH6 at X 103850 Y 2006920 J i Drilholes Geological Log Geological Model Misfit 0 04 i BO H1 g H fg H2 D 3c 3 i yg H3 2 70 275 i BO H4 i Es g 3D Geology DN a Grids and Meshes a Si af e ia z 5 a ey x a o w 2 70 2 75 z o 2 D zs 2 The display of the log is interactive A mouse wave on the log will give depths amp values details Figure left A left mouse drag on the log will Zoom the display Figure right o 5 o a D z 7 2 675 2 700 2 725 2650 2675 2700 2725 2750 N 7 7 ka h N V A T ba Pi i k a 1350 Density 2 69E0 Ym 7 om N ia 3 To re set the zoomed view Close the log and re open as in Step 1 Double click on H2 Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 91 Contents Help Top 4q Back gt Edit the density log amp display the histogram for H2 A6 Stage 4 Steps 1 Ifyou wish to re
26. do this now Don t show this again Yes start Stratigraphic Pile editor Mo do it later After Basement is added choose Yes start Stratigraphic Pile editor If this box does not appear from the main menu choose Geology Stratigraphic Pile Create or Edit 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Contents Help Top Contents Top Ensure that Reference of the pile is set to Bottom i 3 Create or Edit geology series and th Series Formation s Dyke Relationship UpperSeries Cover Onlap LowerSeries owerCover Onlap Choose New series Specify BasalSeries e Enter BasalSeries for Name of the series Tutorial A First GeoModeller Model 30 q Back gt e Select formations from the left list and use either Add to Series or Remove from Series to move the formations so that Basement is the only formation in the Formations in Series list on the right side For example to move Basement from the unassigned Available Formations into the Formations in Series select Basement and then choose the Add to Series tb Add to Series 7 Create Geology Series Properties Name of the Series Relationship Onlap w Contents Available Formations Dykes Formations Dykes in Series IE MiddeCover ES Basement Add to Series Reference W Top E Bottom Series Formation
27. erase any existing contents of the Points List Click two points close to those specified in the table above 5 Edit the points using the Points List Editor so that they have the correct values On the Points List Editor toolbar choose Float or Dock the Points List Editor From the Show points list information or table menu in the toolbar me Choose Table Edit the U and V point coordinates as required To dock the Points List Editor if you want to reduce screen clutter choose Float or dock the Points List Editor E For more detailed instructions and illustrations refer to similar activity in Al Stage 2 Define section in Tutorial Al A simple model with two formations Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 40 Contents Help Top 4 Back gt 6 Create Section2 from the points trace Choose menu option Section gt Create a Section from its Trace OR on the Section toolbar choose Create a Section from its Trace OR Choose CTRL T In the Create a Section from its Trace dialog box enter the name Section2 leaving other parameters with default values and then choose Create and Close In the 2D Viewer GeoModeller shows the new section in the Topography Map DTM tab and creates a new Section2 tab This tab shows a 2D view of the new section You can see the profile of the topography 7 Save your pr
28. in 3D Viewer Repeat this step for Section1 2 Choose main menu Model gt Visualise 3D Formations and Faults OR In the Model toolbar choose Visualise 3D Formations and Faults fa Check Formations Check Volume Leave other default values GR Build 3D Formation Shapes Type GP voume fP Coum Ep Surface Draw Shapes after building Resolution Render quality Low Medium C Delaunay Repair C Save tetra volumes 3 Choose OK Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 25 Contents Help Top 4q Back gt 4 You can represent the formations in either wire frame or shaded style To change the view of a series or formation e Inthe Project s Explore fully expand the 3D Geology branch of the tree and select a series or formation at the volume level e Choose Wireframe or Shaded from the shortcut menu right mouse click Observe the effect on your model visualisation y amp Topograr amp Explore E Tutoriali H ia Formations _ odo g 30 Geology UpperSeries LowerSeries G Grids and Meshes re lt E 3 p Wireframe i BA om Appearance Delete Shaded upper Wireframe lower All wireframe 5 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A Fi
29. in H2 8 Save your project A5 Stage 4 Discussion and further investigation of the 3D Viewer e Is every part of the revised new model consistent with all of your data e What do you think of Drillhole H1 e Model refinement is still required near the basal granite contact in H2 These are all queries you should ask yourself when validating a model Each will require checking and may need adjustment using the methods we have given above Render the model in the 3D Viewer again 1 First you may need to clear the 3D Viewer View gt 3D Viewer gt Show interface data gt Deselect All View gt 3D Viewer gt Show Drillholes gt Deselect All Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 85 Contents Help Top 4q Back gt 2 Choose Model gt Visualise 3D Formations and Faults This time expand the More section and investigate options for plotting at higher resolution Choose Fixed Cell 300 m Build Formations amp Faults Type Volumes Se a EE as 3D Shape Parameters Type and Mesh Resolution Build V Formations 4 Faults in S NOP AA PARK Type Volume column E Surface J Draw Shapes after Building Resolution Y Low Medium High Render Quality Cell Dimension Fixed Variable 303 03 Y 1000 Z 1000 m nX 33 nY 33 nz 33 Build 3D Limits XMin 100000 00 XMax 110000 00 m Use Points
30. model passes through our observed geology contact data points 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 23 Contents Help Top 4q Back gt A1 Stage 5 Steps Plotting the model in the Topography section 1 Repeat the previous two sets of steps using the Topography section Lines Geology contact or interface Filled Solid Geology Section1 and Topography section plot in 3D Viewer The plot of modelled geology on the Topography section is in effect a solid geology map of our project area The blue colour represents the outcrop of LowerCover which is overlain by the yellow UpperCover formation To hide the mesh display of Topography Inthe Project s Explore expand the Sections branch of the tree e Choose Topography and then Hide from the shortcut menu right mouse click Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 24 Contents Help Top 4q Back gt A1 Stage 5 Steps Build 3D formations For the full picture let us represent the model in 3D 1 Turn off the display of the section plots in the 3D Viewer Select Topography in the 2D Viewer From the shortcut menu for Topography in the background of the 2D Viewer choose the following items if they are available e Hide modelled geology lines in 3D Viewer e Hide modelled geology polygons
31. s Dyke lUpperSeries Cover LowerSeries owerCover iBasalSeries sement If necessary select a Series and use the Move up or Move down arrow buttons to put BasalSeries at the bottom 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 31 Contents Help Top Contents Top 4 Back gt 3 Insert the MiddleCover formation into the UpperSeries 4 In the Create or Edit Geology Series and the Stratagraphic Pile dialog box select UpperSeries Choose Edit Select MiddleCover from the Available Formations Dykes and use Add to Series to move it right to the Formations Dykes in Series Then use Move down so that MiddleCover is below UpperCover in the Formations in Series list fae Edit Geology Series UpperSeries Properties Name of the Series UpperSeries Default Relationship Onlap Contents Available Formations Dykes Formations Dykes in Series E A rover Race irur mi Middecover si OVE UL Cc Remove from Series es T Constraints me l ie Choose Commit and Close Close the Create or Edit Geology Series and the stratigraphic pile dialog box Check the details of the revised stratigraphic pile From the main menu choose Geology gt Stratigraphic Pile Visualise Check that the series are in the correct stratigraphic order from BasalSeries at the bott
32. 3 056 118 586 110000 000 2009493 056 110000 000 2009493 056 272 919 110000 000 2000506 944 110000 000 __ 2000506 944 440 306 of x KE g Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 45 Contents Help Top Contents Top 4 Back gt If your image has three or more points for which you know the geographical coordinates you can use the Edit and align image dialog box to geo register the image in your project After geo registration each point in the image corresponds to the correct location in the GeoModeller project On the left is a copy of the image you have opened On the right is a copy of the image as registered in the GeoModeller project The left panel has three movable alignment points You will move them to correspond with the three known registration points in the image Enlarge the image in the Image panel and move the view to the top left corner so that you can see the registration point and alignment point 1 me aa LALA S 100000 E 2010000 N Select amp Drag alignment point 1 to exactly align with the registration point in the image Image 727 x 644 Ey Q Ah bs 100000 E 2010000 N h Enter the coordinates of this point 100000 2010000 in the table at the bottom of the dialog box as U and V for alignment point 1
33. BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 44 Contents Help Top q Back gt A3 Stage 3 Steps 1 Open Image Manager In the 2D viewer select the Topography tab From the Topography shortcut Menu Right Click in the 2D viewer choose Image Manager Eg Image Manager 44 Topography ae Hide i NB Wireframe a Make sure the original image is Appearance not in the project directory Plot the Model on the Current Section Ee yt Reset View Display Parameters Presentation lE Background Colour Refresh Preview am Le Image Manager K Save Image Section gt Data k Select All Deselect All Invert Remove Projected Data fe Properties P Hep 2 Choose New GeoModeller display the Edit and Align image dialog box Choose Browse and open C GeoModeller GeoModeller2013 Build tutorial TutorialA Tutor ialA3 Data FieldGeologyWithCOVER jpg Edit and Align Image Image C Wsers chloe Desktop Outcrop_Map2 jpg Section Topography File C Users chloe Desktop Outcrop_Map2 jpg Image 720 x 647 Q Q DTE te 4 4 i 800 899 j 242 697 ur116441 718 v 2000030 675 x 116441 718 y 2000030 675 z 3894 508 Alignment Controls Preview ae Move Point lt b AddPoint Delete Point E Reset Points Preview Off On Continuous u v x y z 100000 000 2009493 056 100000 000 200949
34. C From the Points List Editor toolbar choose Delete all Points to erase any existing contents of the Points List In the Topography section click two points approximately at the coordinates specified in the table above Click the Float or Dock the Points List Editor icon on the Points List Editor toolbar From the Show Points List Information and or table menu in the toolbar choose Table In the Points List Editor edit the U and V points as required to match the table above Dock the Points List Editor optional 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 61 Contents Help Top Contents Top 4 Back gt 3 From the main menu choose Geology gt 2D Structural gt Create Geology Data OR 4 5 In the Structural toolbar choose Create Geology Data OR Press CTRL G In the Create Geology Data dialog set the Geological Formations Dykes and Faults to SW_NE Fault Choose Create and then Close Eg Create Geology Data Geological Formations Dykes and Faults SW_NE Fault Observation ID Section Topography Provenance Unspecified Associated Orientation Data Automatically Re edit LP bee The fault location data may be edited after creation Using the Select tool highlight the fault data in the 2D Viewer Use the shortcut menu right click gt Edit to visit the Edit Geology Data pop u
35. Create or Edit Faults SW_NE_Fault TET Attributes 2h Appearance Delete Create a Fault Name SW_NE Fault d Add e e ean Since you have just created a new fault the Create Fault message tip suggests you might want to now link the new fault to a geological series Choose No do it later 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 60 Contents Help Top Contents Top 4 Back gt Using the Points List add the new location data for the fault plane you observed in outcrop In the Topography section define two fault location points Note that the field observations describing the position and attitude of faults are like geology contact points Thus we will use similar steps to create fault data as we used previously to create geology data The coordinates for the two points where the fault plane was observed are Point 1 105000 2002500 SW_NE Fault Point 2 107500 2005000 SW_NE Fault For more detailed instructions for using the Points List Editor in an operation like this see the earlier stages in Tutorial Al A simple model with two formations Select the Topography Section and reveal the short cut menu right click in the section background Choose Display Parameters In Model Geology clear Geology lines and clear Geology filled Then OK From the 2D Viewer toolbar choose Create OR press
36. GeoModeller User Manual Tutorial A Introduction 1 Contents Help Top 4q Back gt Tutorial A A First Geology Modelling Experience Parent topic User Authors Gabriel Courrioux and Philippe Calcagno BRGM Manual and Tutorials V2013 update Chlo Bonet amp Helen Gibson Adviser Rod Paterson In this case study e Tutorial Al A simple model with two formations e Tutorial A2 Several formations that overlap each other e Tutorial A3 Intrusive bodies e Tutorial A4 Geology with a fault e Tutorial A5 Incorporating drillhole data e Tutorial A6 Adding down hole numerical data Location of files In this document we refer to files supplied with your GeoModeller software installation Generally C GeoModeller or your customised path C GeoModeller GeoModeller2013 build tutorial TutorialA As you progress through the tutorial you will produce amp save your own GeoModeller project s We recommend you store these in another place away from your GeoModeller installation This way the original tutorial files will be preserved for future use Do not overwrite any files in C GeoModeller GeoModeller2013 build tutorial TutorialA Tutorial A1 A simple model with two formations Parent topic This tutorial shows you how to use basic functions of GeoModeller by building a simple 3D Tutorial A A First model comprised of 2 geology formations Geology Modelling Experience You will learn how to e Create a pr
37. P Help Undo af Create Close Again the fault orientation data may be edited after creation Using the Select tool highlight the fault data in the 2D Viewer Use the shortcut menu right click gt Edit to visit the Edit Geology Orientation Data pop up menu Make changes then gt Edit and gt Close 6 Save your project Before computing the fault you doubt the extended propagation of your fault and whether it offsets all formations in your project You decide to test one possible interpretation first that the fault is finite Afterwards you want to consider the fault may be infinite Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 63 Contents Help Top Contents Top 4 Back gt T First set the fault as a finite fault 8 Choose main menu Geology gt Faults Create or Edit In the Faults Create or Edit window Select the SW_NE Fault And Choose Attributes A By default the range of the fault is set on Infinite Select Finite and enter the parameters given bellow e Horizontal Radius 2000 m e Vertical Radius 6000 m Influence Radius 2000 m same as the horizontal radius These values set up the axes of an unseen ellipsoid which will effectively clip the edges of the infinite fault plane making it instead a surface with finite extents see Fig in Step 9 below Accept other defaults in the w
38. RL D PJ Plot the model settings Section Plotting resolution Number of nodes u direction 50 v direction 50 Node spacing u 253 6 v 200m More J Show lines Show trend lines _ Formations Faults Hint Select All Deselect All Invert Seleci of OK wf Apply wf Apply to All Fd close Set the parameters e Check Show lines and clear Show fill e Use default values for the other parameters 3 Choose OK The modeled geology line is directly over the data a darker yellow line Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 21 Contents Help Top 4q Back gt 4 View the line plot in the 3D Viewer From the shortcut menu in Section 1 in the 2D Viewer right mouse click in the background zone choose Show Modelled Geology Lines in 3D Viewer Examine the results in the 3D Viewer D320 View Z 5 5 Save your project A1 Stage 5 Steps Plotting the model in Section1 with filled polygons 1 Select Section1 in the 2D Viewer 2 From the main menu choose choose Model gt Plot the model settings OR From the Model toolbar choose Plot the model settings OR Pess CTRL D r Plot the model settings Section Section1 Y Plotting resolution Number of nodes u direction 50 v direction 50 Node spacing u 253 6 v 200m More I
39. S ed Examine Section1 above Note that to the right side south east of the oblique slip fault there are some interpreted geology data points for the bottom of LowerCover and the bottom of MiddleCover but no data for the bottom of UpperCover formation Later we use the model to postulate the likely geometry for the UpperCover south east of the fault 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 69 Contents Help Top 4q Back gt 3 Recall the rule we noted earlier regarding 3D model computation Before we can compute the model of a series there must be at least 1 geology data contact point for each formation in the series and geology orientation data point for the series within the modelled zone We have met this condition for the IntrusiveSeries and UpperSeries but not for the LowerSeries The LowerSeries consists of a single geology unit the LowerCover formation There are some geology data contact points in Section1 for LowerCover but there are no orientation data for LowerCover formation In order to be able to model the LowerSeries we must add orientation data for the LowerCover formation One way to do this is to associate geology orientation data with one of the two sets of LowerCover geology contact data that were imported to Section1 Using the Select tool roll the mouse over one of the points in the geological data that belongs
40. X 100144 602m yi2009984 250m z 11 730m u 100144 602m vi 2009984 250m 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 11 Contents Help Top Contents Top 4 Back gt 2 Using the Create tool in the Topography section left mouse click approximate locations of the two points in the table above It does not matter if they are not exact o E sf lt Topography 3 Edit the points using the Points List Editor so that they have the correct values In the Points List Editor toolbar choose Float the Points List Editor E Section Navigation Topography Point 2 Cor GIS and other Binary Located Data From the far right hand menu within the toolbar Show Points List perl Information and or Table Choose Table third in the list ha Points List Editor Section Navigation Points View Topography T Point 2 of 2 aa gt amp amp f i OI hl Cor GIS and other Binary Located Data Points List 100010 000 2009990 000 19990 TEEPE _2000010 0001 109990 0 20000 10 0 The point points just created but not yet assigned are displayed Edit the U and V point coordinates as required in the table above the ends of the cross section we want to create Dock the Points List Editor to reduce screen clutter Choose Dock the Points List Editor 2012 Intrepid Geophysics am
41. ach point upwards so they will be in better agreement with the projected contact in the drillhole H2 Take care not to drag any shallow points across the location of the fault zone not shown Sect l ILs T SE m q te aie D H y Contents Top 2012 Intrepid Geophysics amp BRGM 4q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 83 Contents Help Top 5 6 Contents Top 4 Back gt Additionally in Section2 orthogonal to Section1 we need to guide the basal MiddleCover contact correctly through this section where our interpretation is based on 3 drillholes We suggest two pieces of orientation data as shown below Using the Create tool from the 2D toolbar make two points between the 1 and 2 drillholes from the left side H3 amp H2 Clicking left and then right Then Select Create Geology Orientation data OR Press R Accept the suggested dip amp dip direction data providing it suggests a shallow dip in the plane of the section with upward facing Create Repeat for the next pair of points Noting that the points can be quite far apart Create Close i fe Create Geology Orientation Data aol aphy LJ VW Section2 Lid p Geological Formations and Faults MiddleCover gt v Tales alee Observation ID Section Section2 i Provenance Unspecified x Coordinates X 6973 694 Y 1934 361 Direction Dip Direction 63 435 Dip 24 215 Polarity
42. al toolbar choose Create Geology Data B or press CTRL G In the Create Geology Data dialog box e Geological Formations Dykes and Faults select Dyke e This dialog box allows us to create some associated orientation data too these are orientation data created between each pair of digitised data points e Check on Associated e Select Dip Constant and set Dip 83 degrees e Polarity select Normal e Thickness 800 metres e Choose Create and then Close ssc aden fig Create Geology Data 124 99051480314651 Dip 83 Dip 0 Direction Dip and Dip Direction Constant Dip 83 Direction Polarity Normal Reverse Overturned Thickness Automatically Re edit Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Contents Help Top Tutorial A First GeoModeller Model 52 4q Back gt 13 Repeat steps 11 and 12 for the next outcropping section of the dyke Again starting at the top end click two or three points along the length of the dyke in the middle of the exposed dyke like a backbone In the Create Geology Data dialog box Contents Top In Geological Formations Dykes and Faults select Dyke Check on Associated Select Dip constant and set Dip 83 degrees Polarity select Normal Thickness 100 metres Choose Create and then Close 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoMod
43. at consecutive delimiters as one V Skip leading spaces 1 2 3 4 5 6 6 570 coin Sae At Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 89 Contents Help Top 4 Back gt 6 Next Select columns to Import Step 3 of 3 Select Columns in turn First Column A treat as Hole ID Then Column B treat as From Then Column C treat as To Select Columns to Import Step 3 of 3 1 2 3 4 G 6 6 772 774 2 73 cana Columns Treat as Not Import Field Properties Name Type Boolean 7 For Column D treat as Field Additionally just for column D you are advised to add Field Properties names For Name use Densities For Unit use gcm 3 Then gt Finish Select Columns to Import Step 3 of 3 1 Select data type to import 2 Parse CSV file 3 Select Columns to Import Treat as Field Field Properties Name Densities Type Real Null value 8 Check the import Report Then Close Detailed Info HE Loaded Contents Top 2012 Intrepid Geophysics amp BRGM 4q Back gt Tutorial A First GeoModeller Model 90 q Back p GeoModeller User Manual Contents Help Top Display down hole
44. ation indicates clearly that the Granite intrudes all three of the Cover formations that we have defined So that the model takes this cross cutting relationship into account we will define the Relationship to be Erode in the geological pile We shall create a new series so that our geological pile has the following configuration with Bottom reference UpperSeries UpperCover Onlap MiddleCover For a set of instructions with more detailed instructions and screen snaps see A2 Stage 2 The basement and the sedimentary sequences above 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 42 Contents Help Top Contents Top 4 Back gt 11 From the main menu choose Geology gt Stratigraphic Pile Create or Edit Ensure the Reference of the pile is set to Bottom Choose New Series In Name of the Series type IntrusiveSeries Ensure that the Relationship is set to Erode Move the formations so that Granite is the only formation in the Formations Dykes in Series list If required select formations and use either Add to Series or Remove from Series Choose Commit Properties Name of the Series IntrusiveSeries Contents Available Formations Dykes Formations Dykes in Series Add to Series F ae mo Constraints Choose Commit and Close In the Create or Edit Geology Series and the Stratigraphic Pile if necessary se
45. cs amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 76 Contents Help Top 4q Back gt 3 Project amp locate new drillhole H1 on the Topography Section plan view Select the Topography tab in the 2D Viewer From the main menu choose Model gt Project Data onto Sections in 2D Viewer OR From the Model toolbar choose Project Data onto Sections in 2D Viewer A OR Press cTRL I Enter 10m as the Maximum distance of projection and check from Drillhole Trace Clear all the other checkboxes s Project Data onto Sectic Geology Data _ __ Granite ___ LowerCover C am SW_NE_Fault Select All Deselect All Invert Select all Deselect All Invert j Parameters Maximum Projection Distance Data to Project from 2D Sections from Hingelines from Drillhole Contacts from 3D Points from Drillhole Trace _P Hee VK Vay EJcose GeoModeller will project traces for the portion of all drillholes which lie up to 10 metres below the Topography section Choose OK GeoModeller displays the drillhole collar location as a triangle using the colour of the first geology interval in the drillhole Note the position of drillhole H1 in the NE of the area It is on or very close to the trace of Section2 You can check this by first zooming and then measuring with the tape measure tool on the 2D toolbar Also check the identity of the dri
46. ctural Data Faults Only Series to Interpolate Faults to Interpolate Sections to Take into Account HB UpperSeries Select Al Parameters Hinta Select Al Deselect all Global Parameters Model Limits 100000 XMax 110000 m 2000000 YMax 2010000 m 8000 ZMax 2000 m Use the default parameters e Series to interpolate Select All e Sections to take into account Select All 2 Choose OK GeoModeller computes the 3D model based on the data in our project Note that the model is a mathematical model a set of interpolation parameters based on the project data In order to see the model we need to interrogate the model and present it either in the 3D Viewer or render it onto 2D sections in the 2D Viewer We will do this in the following sections 3 Save your project 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 20 q Back gt Contents Help Top A1 Stage 5 Show the 3D model in 2D sections and in 3D In this stage of the tutorial we generate a representation of our model Parent topic Tutorial A1 A ed with A1 Stage 5 Steps Plotting the model in Section1 with lines PYG formations 1 Select Section1 in the 2D Viewer 2 From the main menu choose Model gt Plot the model settings OR From the Model toolbar choose Plot the model settings OR Pess CT
47. d work you observed the presence of a granite in the project area Due to poor outcrop you were not able to map its full extent On the other hand it was possible for you to measure some orientations that are representative of the geometry of the granite contacts Parent topic Tutorial A3 Intrusive bodies In this stage we add information about the granite to our project and recompute the model A3 Stage 2 Steps 1 Adda new formation for the granite Before integrating your geology orientation data dip and dip direction data for the granite into the project you need to add the new geology formation Add the new formation with the following parameters Names are case sensitive and must be exactly as shown red RGB 205 0 0 Choose main menu option Geology gt Formations Create or Edit In the Create or Edit geology formations dialog box use the following sequence Enter the Name e Specify the Colour use the RGB tab if you want to get it exact but this is not vital e Choose Add and then Close i Appearance 8 oee E Basement Create anew geology formation Name Granite ap Add Help GeoModeller may display the Create Formation tip box Choose No do it later Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 38 Contents Help Top 4q Back gt 2 Import the structural data measurements obser
48. e Dyke is already listed right in the Formations Dykes in Series Otherwise to add Dyke to a series select Dyke from Available Formations Dykes and choose Add to Series Alternatively to remove a formation select it from the right in the Formations Dykes in Series and choose Remove from Series e For dykes the relationship is automatically set to Erode e Choose Commit and Close Select the DykeSeries and use Move up or Move down to put DykeSeries on top of the pile Check that Reference has been set to Bottom Choose Close Save your project Note On the handmade surface geology map that you just imported in GeoModeller your colleague also wrote on the map some annotations of the thickness of the dyke The annotations may be less visible in low resolution after being geo located in GeoModeller but are still available in native file format in a copy preserved automatically in your GeoModeller project folder The next steps are to create the dyke in GeoModeller and check the thickness of the dyke on the map where it outcrops In the 2D toolbar select the Tape Measure Or Press Ctrl Z Measure the thickness of the dyke in the larger area first by clicking on one side of the dyke in the image and then dragging the cursor to the other edge Click again to fix the value measured in the Tape Measure window 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Mod
49. e Points List and the Points list editor enable you to create points a pair of coordinates which will be contained within a section in a GeoModeller project Two is the minimum number of points to define a section Now you create a vertical section by defining its trace on the Topography section Use the following parameters e Name Section1 e Coordinates of the ends of the section on the topography X East U Y North V 100010 2009990 End 109990 2000010 e Default values for all other parameters We will click the points in an approximate position to add them to the Points List Editor and then edit them to achieve the exact coordinates as defined in the table above A1 Stage 2 Steps 1 Add two points at approximate locations to the Points List In the 2D Viewer select the Topography section a green tick will appear in the top left of the window From the 2D Viewer toolbar choose Create OR press C From the Main menu Points List Editor toolbar choose Delete all Points to erase any existing contents of the Points List Notice in the 2D Viewer when rolling the mouse over you can observe the display of coordinates changing at the bottom left of the workspace Notice that even though we are in a plan view section the z value is changing due to the topography it represents In GeoModeller the Topography section is a special section in the sense that it is highly non planar
50. e is C GeoModeller GeoModeller2013 Build tutorial TutorialA TutorialA2 Data Sectionl LowerCover MiddleCover data Select the Section1 tab in the 2D Viewer From the main menu choose Import gt 2D Geology to Section gt Contacts Structure BRGM 3 Import 2D data to Sectionl Section 2 Help of ok Fd cose Choose Browse and open the file Choose OK 7 Save your project 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 33 Contents Help Top 4 Back gt A2 Stage 2 Discussion Section now includes the structural data for the basal contacts of the LowerCover MiddleCover and UpperCover formations Each data point has the colour of the geology formations with which it is associated These new geology contact data will influence the positions of the contacts during the re computation of the 3D model Note that the set of geology data points for LowerCover have associated geology orientation data This feature of GeoModeller allows you to define the position of some geology contact via a sequence of contact data points and at the same time describe the attitude of that contact by means of associated orientation data The associated geology orientation data are located at each mid point between the geology contact points Note also that for GeoModeller to compute the model for any series there must be at leas
51. eate Geology Series dialog box Pono SL ee ee Properties Name of the series UpperSeries Default Relationship Onlap EA Contents Available Formations Dykes Formations Dykes in Series pe E G mover Cr as Constraints E Remove from Series L 12 For Name of the series a suggested name appears but specify UpperSeries By default UpperCover is already listed on the right hand side in the Formations Dykes in Series list In the general case to add a geology formation to a series select the formation from the left hand side list Available Formations Dykes and choose Add to Series Alternatively to remove a formation select the formation from the right hand side list in Formations Dykes in Series and choose Remove from Series e When UpperCover is listed on the right hand side for the UpperSeries And the relationship is Onlap Then choose Commit 13 Specify LowerSeries in a similar way with LowerCover in the Formation Dykes in Series list Pract SER I eT ee Properties Name of the series Lowerberies Relationship Onlap gil Contents Available Formations Dykes Formations Dykes in Series E Remove from Series B ee Choose Commit and then choose Close Contents Top 2012 Intrepid Geophysics amp BRGM 4q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 9 Contents Help To
52. el 50 Contents Help Top 4q Back gt me Tape Measure Distance Bearing 800 404m 36 383 Thickness of the dyke in this area is about 800m and this confers with your colleague s notes Press on Clear a repeat the measure for the thinner part of the dyke fi Tape Measure Distance Bearing Angle 100 370m 35 551 Dyke thickness second measurement is approximately 100m again conferring with your colleagues notes 11 Digitise dyke geological data From the 2D toolbar choose Create S or press C From the Points List Editor toolbar choose Delete all Points Starting at the top end click two or three points along the length of the dyke in the middle of the exposed dyke like a backbone For digitising dykes at least two points must be specified for each segment This is because strike needs to be locally established The thickness is then assumed to occur orthogonal to the dyke boundary and will need to be defined in metres Also an associated dip needs be entered These conditions must be met if you have chosen to build a dyke in GeoModeller using the dyke creation tool You cannot compute your input until these requirements are entered Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 51 Contents Help Top 4q Back gt 12 From the main menu Geology gt 2D Structural gt Create Geology Data Or from the Structur
53. eller User Manual Tutorial A First GeoModeller Model 53 Contents Help Top 4q Back gt A3 Stage 4 The final 3D model Parent topic The final stage of Tutorial A3 is to compute the 3D model with the granite and dyke Tutorial A3 Intrusive bodies A3 Stage 4 Steps 1 Compute the 3D model with all sections and series From the main menu choose Model gt Compute OR From the Model toolbar choose OR Press CTRL M Compute the 3D model with the following parameters e Series to interpolate Select All e Sections to take into account Select All 2 Plot the model filled in a section Select a section tab in the 2D Viewer Plot the model in the section using the same steps you have used in previous stages 3 Plot the model using current settings in all sections From the main menu choose Model gt Plot Model on All Sections in 2D Viewer OR From the Model toolbar Plot Model on All Sections in 2D Viewer amp Topography Section 1 Section 2 4 View the filled 2D plots in the 3D Viewer In turn select each section in the 2D Viewer and from the shortcut menu in the 2D Viewer right click the background choose Show Modelled Geology Polygons in 3D Viewer Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 54 Contents Help Top Contents Top 4 Back gt 5 View the full model in the 3D Viewer Remove the section d
54. ew geology formation Name LowerCover P Help Export Close Choose Close after you have created the two required geology formations 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 7 Contents Help Top Contents Top 11 4 Back gt When you choose Close in the previous step GeoModeller may display the New formation creation tip box New formationis have been created They have not yet been added to the Stratigraphic Pile Do you wish to do this now C Don t show this again Yes start Stratigraphic Pile editor No do rt later Choose Yes start Stratigraphic Pile editor Create the geological pile for your project If the tip box and pop up like below does not appear From the main menu choose Geology gt Stratigraphic Pile Create or Edit Select the Reference Bottom For this example we will use geology observations which will represent the bottom of the geological formations Choose New series Create or Edit Geology Series and the Stratigraphic Pile Reference Wi Top Sh Bottom Pile Series Formation s Dyke Relationship We will create two series as shown in the following table UpperSeries UpperCover 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 8 Contents Help Top 4q Back gt Choosing New series pops up the Cr
55. ewers 3 In the project Explore expand the Sections branch of the project tree Use the shortcut right click menu to choose options for each section Explore va Tutoriala2 a Formations ah Dykes i Faults Z i Drillholes Q Shading g 3D Geology 2 Appearance Ta Grids and Me J Plot the Model Reset View rigs Image Manager Remove Projected Data amp Show Modelled Geology Polygons in 3D Viewer Zal Show Modelled Geology Lines in 3D Viewer ee Erase All Model Geology Export EE Copy Delete Data gt g Properties Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 57 Contents Help Top 4q Back gt To open a section in the 2D Viewer which is not already open Select the Section and choose the shortcut menu option right click Open 2D Viewer To close a section view either Select from the Main menu Window gt Manage Workspace and use ticks for arranging visible sections or Click the red Close cross on the section s 2D Viewer tab Y Topooaphy Ei To detact a Section in 2D Window and float it in a separate workspace Use the detach button located on the upper right tab of the chosen 2D Viewer Click again to dock the window again ais Topography amp OD El 20 view Sectionl Y Section1 sections z pa Tensa phi hay To view multiple panels of 2D Viewers simultaneously Select
56. following properties e Name Topography e Browse to the Filename of the source data DTM semi See above e Description Topography of the model The resolution of the DTM file can be resampled on import but we will not change this here fae Load Topography from a DTM Name Topography Filename C GeoModeller GeoModeller2013_x86_a00532ee0d50 TutorialA TutorialA 1 Data OTM semi Projection NTF LambertIIet Unit m Project Bounding Box xMin 100000 0 XMax 110000 0 Min 2000000 0 YMax 2010000 0 Min 8000 0 Max 2000 0 Grid Bounding Box xMin 987590 YMin 1998750 YMax X Cell Size 2500 Cell Size No of Points on X 5 No of Points on Y Subsampling Rate Description Topography of the model Help Other than a simple ascii grid semi many grids formats are supported Use the Browse menu to explore the options Choose OK GeoModeller will open its 3D Viewer and show the bounding box of your project complete with an outline of the topographic surface i e the Topography section 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A Introduction 5 Contents Help Top 4q Back gt E GeoModeller ProjectMy Project Project Edit Section Geology Model Geophysics Interpolation Import Export View Window Help GSeBBS Ur 2 FOF YA K lt r al BSYVOPF AAP ABH 12D _ G Explore Vf lt Topography o El 2D View 3 GR My_Project_A1 3J Forma
57. hat overlap each e LowerCover other However your recent mapping indicates the geology of the region is a little more complex In particular you observed the cover was made up of three distinct formations Also a literature review revealed the presence of Basement at 5 to 7 km depth in the project area In this tutorial we add the missing geology formations to our project The basement is located below LowerCover Also we insert the MiddleCover between the LowerCover and the UpperCover We will now create geology formations with the following parameters names are case sensitive and you must enter them exactly as shown due to pre prepared data we will import later pink RGB 238 162172 orange RGB 255 165 0 We want to update the geological pile of our project The current pile is as follows UpperSeries UpperCover The Reference of the pile is the Bottom base of geology formations That means that the LowerCover UpperCover contact represents the base of the UpperCover formation The two series each having just a single formation are interpolated separately The Onlap Relationship is determined from our field observation that the younger series simply onlaps onto the stratigraphically older formation no erosional event occurred before it s deposition Your literature study shows that the LowerCover formation is unconformable with the Basement Thus we have to interpolate these 2 formation
58. he dip values for drillhole surveys to be positive downwards i e a dip of 90 is a vertical downwards drillhole If in your own data bases drillhole surveys use the opposite convention you can check Invert Dip to import those rrectl Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 75 Contents Help Top 4q Back gt e Choose Finish at Step 9 to complete the import and dismiss the message box reporting the successful import of the three drillholes This report is designed to help you progress through problem solving issues in the logging data file It is useful when dozens of drillholes are being imported at one time Verify imports Step 9 of 9 Select data type to import Summary Parse CSV collar file Map CSV colums to collar data Imported structure Total Parse CSV survey file Map CSV colums to survey f Validation Passed imported Validation Warning imported Validation Failure not imported Again dismiss the results page Detailed Info Hi Imported H2 Imported H3 Imported GeoModeller displays the drillholes in the 3D Viewer View gt 3D Viewer gt Show Drillholes or alternatively Explore gt Drillholes gt short cut right click Show You will not see the drillholes in the 2D Viewers until you project them onto one or more sections Contents Top 2012 Intrepid Geophysi
59. he geology interpretation Parent topic Tutorial A4 Geology with a fault Contents Top The presence of a fault in Section1 requires us to reconsider our geological interpretation In particular there is the issue of defining the traces of the formation boundaries on approach to and beyond this oblique slip fault displacement is implicitly defined rather than defining the offset everywhere on the fault One of your co workers has already worked on this for you The new interpreted traces of the geology contacts as they interact with the fault are represented in polygons in MapInfo GIS format We will now import the interpretation into GeoModeller To do this we use the MapInfo interchange format mif mid A4 Stage 3 Steps 1 Recall that the existing geology data in Section_1 is an interpretation Further that earlier interpretation did not take the fault into account We need to replace the earlier work with revised data that does allow for the fault We will first remove the geology data contact points that we previously imported into Section1 in Tutorial A2 From the 2D Viewer toolbar choose Delete Objects amp In Section in the 2D Viewer drag a rectangle to include the three sets of geological data GeoModeller displays a dashed outline around the selected objects Confirm that you want to delete the selected geology data objects Choose Yes You are not deleting the formations themselves t Lepograp
60. he project area A1 Stage 1 Steps 1 Create a new project first close the current project if required From the main menu choose Project gt New OR From the Project toolbar choose New amp OR Press CTRL N 2 Add the following parameters Project Name My Project Al Note No spaces in the name Authors Your name or company name Description Training or a comment of your choice Projection NTF Lambertllet Unit m Geographical area XMin 100000 X Max 110000 Y Min 2000000 Y Max 2010000 ZMin 8000 ZMax 2000 Except for the geographical limits and projection all of the fields are text purely for information You can recall and edit them any time They do not influence the project For other fields not mentioned above use default values Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A Introduction 3 Contents Help Top 4q Back gt Parent Directory You may browse to any directory for saving of the new project No spaces in the path Therefore do not save to the desktop The Project Name will become the sub directory For example D 3DModels TutorialA TutorialA1 My Project Al The main project persistence file will become My Project Al xml Project Properties General Parent Directory D 30Models TutorialA TutorialA 1 Project Name Project Location D 30Models TutorialA TutorialA1 My_Project_A1 Version 1 0
61. ick Add and then Close 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 48 Contents Help Top Contents Top q Back gt Create or Edit Dykes A Er Attributes Appearance 3 Delete Create a Dyke Name Dyke cor When you choose Close in the previous step GeoModeller may display the Create Formation tip box Create Formation m New formations have been created They have not yet been added te the Stratigraphic Pile Do you wish to do this now E Don t show this again No Do it later Choose Yes start Stratigraphic Pile editor If this box does not appear from the main menu choose Geology gt Stratigraphic Pile Create or Edit fa Create or Edit Geology Series and the Stratigraphic Pile im Reference Series Format Relatio IntusiveSeries Choose New series 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 49 Contents Help Top Contents Top 10 4 Back gt The Create Geology Series dialog box appears Create Geology Series Properties Name of the Series Relationship Erode Contents Available Formations Dykes Formations Dykes in Series of Commit Ed close For Name of the Series enter DykeSeries e By default th
62. indow fe Fault Properties SW_NE_Fault Manage Fault Properties Finite Fault Set the Radius on Each Direction Name SW_NE_Fault Range Centre Infinite Mean Centre Finite 6 Databox Centre Horizontal Radius 2 0 User specified Vertical Radius Infuence Radius Choose OK and Close Compute and plot the 3D model for the fault only to check that it is correct Model gt Compute OR From the Model toolbar choose OR Press CTRL M Compute the 3D model with the following parameters e Faults only Checked e Faults to interpolate SW NE Fault e Sections to take into account Select Topography gt OK 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Contents Help Top Contents Top Tutorial A First GeoModeller Model 64 4q Back p Compute the Model Interpolate Geology and Structural Data Geology and Structural Data Faults Only Series to Interpolate Faults to Interpolate DykeSenes Select All Parameters Global Parameters Model Limits Data 110000 m Use Points Simplification Radius 200 I Min 100000 XMax Min 2000000 Max Min 8000 ZMax It is sufficient to use only the data from the topographic surface since all of our data relating to the fault are on that map section This can be confirmed in Explore by fully expanding the Faults tree where the data repository for both Interface and Orientat
63. ion are listed Plot the model with lines in Topography Select the Topography tab in the 2D Viewer From the main menu choose choose Model gt Plot the model settings OR From the Model toolbar choose Plot the Model Settings OR Press CTRL D Check Show lines and clear Show fill Choose OK eU Plot the Model Settings Number of Nodes u Directi irecti Node Spacing u 200 v 200m Plot Model Geology F Show Fill v7 i Show Trend Lines Formations j Number of Trend Lines 3 Show in Series Show Everywhere Invert Select All e Invert Select A Deselect A 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 65 q Back p Contents Help Top Our computed model is currently a model of the SW_NE Fault only so this plot of the current geology model on the topographic map surface shows only the trace of the fault in magenta Note in the above image that Section1 is oriented perpendicular to the fault This will enable you to visualise the true dip of the fault in that section 10 Plot the finite fault in the 3D viewer Choose main menu Model gt Visualise 3D Formations and Faults OR In the Model toolbar choose Visualise 3D Formations and Faults a E Build 3D Fault Shapes i Colum amp E Surface Draw Shapes after Building Resolution Render Quality More P Help wf OK
64. isplays in the 3D Viewer For each section in turn in the 2D Viewer from the shortcut menu in the 2D Viewer choose the following items if they are available e Hide Modelled Geology Lines in 3D Viewer e Hide Modelled Geology Polygons in 3D Viewer 6 Choose main menu Model gt Visualise 3D Formations and Faults OR In the Model toolbar choose Visualise 3D Formations and Faults Pa Accept the defaults low resolution Choose OK Examine the 3D view changing the appearance of each formation as desired See detailed instructions in Al Stage 5 Steps Build 3D formations if required 7 Interactive features of the 3D Viewer In the 3D Viewer two modes of model rotation are available Track ball mode or Joy stick mode To toggle between the modes select the following from the 3D toolbar Turn Joystick Mode ON OFF In either mode Try these actions Reset view Left mouse click to reset the 3D model to a centre field view Reset View Turn Focal Indicator ON OFF Left mouse click Fecal Point Indicator ON OFF Zoom Use Mouse wheel foi Reset Zoom Left mouse click Zoom Fit Section to Window Pan Control middle mouse wheel 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 55 Contents Help Top 4q Back gt In either track ball or joy stick mode Try these model queries mouse click on the model element of interest say UpperCover
65. ject in a folder outside the GeoModeller installation path From the main menu choose Project gt Save As OR From the Project toolbar choose Save As E OR Press CTRL SHIFT S The Save as operation is unusual When you specify a project name you are actually specifying a folder name GeoModeller saves the project as an xml with the same name as the directory in that directory along with all associated or referenced files Note that a completed version of the tutorial is available at C GeoModeller2013 build tutorial TutorialA TutorialAl1 Comp leted Project TutorialAl xml Do not overwrite it Create geology formations Use the parameters listed in the following table Make sure you enter the names exactly as shown case sensitive no spaces this is needed since we will be importing some geology data and the data files have been prepared using the formation names as listed here Precise colours are optional yellow RGB 205 205 0 blue RGB 24 116 205 Choose main menu option Geology gt Formations Create or Edit In the Create or Edit geology formations dialog box use the following sequence e Enter the Name e Choose Add e Specify the Colour Click the Colour field and select the colour from the palette Use the RGB tab if you want to get it exact but this is optional 3 Create or Edit geology formation e Geology Formations LowerCover thr Attributes Fi D Appearance 8 Delete Create a n
66. l The presentation of the 3D model in Section2 is the same as at the beginning of this tutorial Plot the model as both lines to plot the fault and solid geology on the Topography map section In the Plot the model settings dialog check both Show fill and Show lines This is the geology map of your project area The geology map is similar to the one at the beginning of the tutorial accept for the presence of the fault visible by its trace 6 Save your project 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 73 Contents Help Top 4q Back gt Tutorial A5 Incorporating drillhole data Parent topic This tutorial will show you how to use GeoModeller to incorporate drillhole data into your Tutorial A A First 3D model Geology Modelling Experience It also explores problems of inconsistency between sections interpreted previously and drillhole data added later and how to revise your interpretive geological work to resolve and therefore improve your model Using GeoModeller you will learn how to e Manage drillhole data e Use drillhole data where partial intersection of a geology formation provides incomplete but useful information e Revise your earlier interpretation to make it coherent with new data added to the project The starting point for this tutorial is the completed Tutorial A4 In this tutorial e A5 Stage 1 The project
67. lect the IntrusiveSeries and use the Move up arrow buttons to put IntrusiveSeries at the top i e the IntrusiveSeries is the youngest geological event recorded in the stratigraphic pile Choose Close 12 Save your project 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 43 Contents Help Top 4q Back gt A3 Stage 3 An intrusive dyke Parent topic Tutorial A3 Intrusive bodies Contents Top During the same field trip one of your colleagues discovered the presence of a rhyolite dyke in the south east area of your project The dyke was exposed in outcrop in two main areas In both areas the dyke had the same petrology but not the same thickness He draws an outcrop map of the area including the new dyke We plan to import and geo register the geological map so that it corresponds correctly within the model and use it to digitise the dyke contacts The map has four located corners for aligning with the project We only use three of them X coordinate East Y coordinate North Top left 100000 2010000 Top right 110000 2010000 100000 E 110000 E 20100000N eee mamas 2010000 N E A g od Gi To summary in this stage of the tutorial we will Create a dyke geo locate an outcrop map image measure the thickness of the new dyke on the map and digitise contact points for the boundary of the dyke 2012 Intrepid Geophysics amp
68. lete this pedi a t a i Show in 3D Viewer Seia x e Dy Appearance ig eo a Edit p Fi Delete m s7 g Properties a L fy Fields assays Histogram Hide Appearance Delete this Field Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 92 Contents Help Top 4q Back gt 3 Ifyou wish to Display the histogram of a density log you need to Expand the Drillholes list in the Explore Menu left side The will become a Then Right click on H2 and gt Edit From the list of Fields in gray Select the field of choice Right click gt Histogram 5 fe Fields assays 4 250 Den J Histogram 4 500 Hide i Appearance 1 750 Delete this Field 2 000 2 250 2 500 2 750 3 000 3 250 3 500 3 750 4 000 Depth O 2 65 2 70 275 2 65 2 70 2 75 S Z w z o Oo D D Q lt Zz z 5 n wo gg Density Mean 2 713333 Sigma 2 713333 Geo Mean 2 713185 Pr Density suoenasqo Jo Jaquny 2 650 2 675 2 700 2 725 2 750 Density 4 Ifyou wish to view one log at a time with a graticule display Choose from the pop up Drillhole Property H2 window Format gt Fields Single View Ei Drillhole Properties H6 W aF W J Drillholes Edit Help o 2000 S E A Wal r Explore Edit Dril Fields Single View a
69. lhole gt 3 Files Collars Surveys Geology or alternatively Explore gt Drillholes gt short cut right click Import gt 3 Files Collars Surveys Geology In the CSV Data Import dialog box e Browse for and open the Collars table the Survey table and the Geology table Use the following files e GeoModeller tutorial TutorialA TutorialA5 Data Drillholeslto3 Collars csv e GeoModeller tutorial TutorialA TutorialA5 Data Drillholesito3 Surveys csv e GeoModeller tutorial TutorialA TutorialA5 Data Drillholesslto3 Geology csv Select data type to import Step 1 of 9 Select data type to import Collar Table Parse CSV collar file Map CSV colums to collar data structure Parse CSV survey file 5 Map CSV colums to survey Survey Table data structure 5 Parse CSV geology file Map CSV colums to geology data structure Map geologic objects in Geology Table project data Verify imports borial TutorialA TutorialA 5 Data Drillholes 1to3_Geology csv Browse torial TutorialA TutorialA 5 Data Drillholesito3 Collars csv Browse torial TutorialA TutorialAS Data Drillholesito3_Surveys csv Browse Next gt e Choose Next to move through to the ninth step of the CSV Data Import dialog box In Step 2 of 9 Select Data start at row 2 and tick Single quote for Text Qualifiers In all remaining 7 steps no changes are required Just proceed with Next By default GeoModeller expects t
70. llhole using the Select tool from the 2D toolbar right click to reveal properties UERS Hide Shading 2 Appearance Plot the Model Reset View Image Manager Export Copy Delete Delete Data Properties Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Contents Help Top Tutorial A First GeoModeller Model 77 4 Back gt 4 Now project drillhole H1 onto Section2 again using Maximum distance of projection of 10m having discovered it is very close to this section Check from Drillhole Trace Clear all the other checkboxes 5 Alsouse Explore to show the drillhole H1 log compared with the current model remembering we have not included drillholes in the compute yet Explore gt expand Drillholes gt H1 gt Double click Explore Gi Se TutorialAs H F Formations po Dykes ai ii Faults H E Sections M4 Drilholes Tea 2 oe g 3D Geology X 2 Grids and Meshes r fa Drillhole Properties H1 T F P s Drillholes Edit Format Help Drillhole logs DrillholeH1 at X 108204 Y 2009100 Geological Log Geological Model Misfit 13 09 o e Drillhole H1 left side plot shows a contact for the bottom of Granite which is shallower than the current model right side plot We assume the drillhole data are more accurate than the Section 2 interpretatio
71. n By two visual checks Steps 4 amp 5 above we anticipate an inconsistencies may occur between the drillhole data in H1 and the current model However first we must re compute the model including the drillholes Contents Top 2012 Intrepid Geophysics amp BRGM 4q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 78 Contents Help Top 4 Back gt A5 Stage 3 Re compute including the drillholes amp modify Granite contact Parent topic Tutorial A5 Incorporating drillhole data Contents Top A5 Stage 3 Steps We now re compute the model including all three drillholes Compute the 3D model Selecting all Series Faults and Sections This time you will see Drillholes to take into account is offered too Select All Plot the model using lines on Section2 Including the drillhole data in the model compute the inconsistencies still occur Therefore the interpreted shape of the Granite in Section2 needs adjusting to fit with the observed data from drillholes which has higher reliability Check you agree with these observations by utilising Pan amp Zoom tools on 2D sections Zoom Hold CTRL and drag with left mouse button Drag up to make diagram larger or zoom in drag down to zoom out smaller Pan move diagram Hold CTRL and drag with centre mouse button OR From the 2D Viewer toolbar choose Pan Y and drag the display to the place you require using the left mouse
72. n the drillhole e From the 2D Viewer toolbar choose Move points OR Press N e Select the Granite contact points mouse roll over to select data turns white In turn move the geology contact points just to the left amp right of the drillhole e Click left and drag each point upwards so that the interpreted contact point will be in better agreement with the observed contact in the drillhole H1 e Repeat the above steps to move a second point the one to the right of the drillhole e To exit from the Delete points mouse mode choose Select N from the 2D Viewer toolbar OR Press S 7 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 80 Contents Help Top 4q Back gt 8 Check the impact of your modifications to Granite Recompute the 3D model and plot it with lines in Section2 9 Check the comparison of drillhole H1 nl the geology model Drillhole Properties H1 Drillholes Edit Format Help Drillhole logs DrillholeH1 at X 108204 Y 2009100 Geological Log Geological Model Misfit 0 05 100 500 600 700 800 900 1 000 1 100 1 200 1 300 A 1 400 1 500 1 600 1 700 1 800 Japow Q D Q lt Better Your interpretation of the Granite contact in Section2 now honors the drillhole data H1 observations and the model i
73. oject 8 Plot the model geology as fill on Section2 Remember that the current 3D model does not take the granite into account Select the Section2 tab in the 2D Viewer and plot the model as solid geology i e filled polygons GeoModeller automatically plots the section view according to the last computed model All sections the Topography Section1 and Section2 share the same 3D model Thus the three sections present a coherent view on the modelled geology as currently computed where the sections intersect with each other the modelled geology plots are identical Contents Top 2012 Intrepid Geophysics amp BRGM CO OSCSC C ack i Contents Top GeoModeller User Manual Tutorial A First GeoModeller Model 41 Contents Help Top Contents Top 9 10 4q Back gt Import the interpretation of the granite into Section2 The file is C GeoModeller GeoModeller2013 Build tutorial Tutoria 1A TutorialA3 Data Section2 Granite data Import the file using similar steps to previous stages in the tutorial Select the Section2 tab in the 2D Viewer Select Import gt 2D Geology to Section gt Contacts Structure BRGM Save your project Create a new series IntrusiveSeries containing the Granite formation Before computing a revised 3D model that takes account of the granite we need to insert this latest formation or unit into the project s geological pile The seismic interpret
74. oject by defining its limits its formations and geological pile e Create a topographic surface using a Digital Terrain Model DTM e Create a section e Import geology data to a map view and a cross section e Compute the 3D model e Render the 3D model in 2D views e Display the model in 3D Our project area is a cube with sides of 10km In Tutorial Al we model two formations These are named e UpperCover e LowerCover Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A Introduction 2 Contents Help Top 4q Back gt In this tutorial e Al Stage 1 Start the project create topography formations series and the stratigraphic pile e Al Stage 2 Create a section e Al Stage 3 Create amp import geology data to the section e Al Stage 4 Compute the 3D model e Al Stage 5 Show the 3D model in 2D sections and in 3D Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 build tutorial TutorialA Tutorial Al1 Completed Project TutorialAl xml Do not overwrite it A1 Stage 1 Start the project create topography formations series and the stratigraphic pile Parent topic A GeoModeller project retains copies of all the data files e g formations faults sections Tutorial Al A used to build the modelling project It sets the limits of the geographical region a l 5 h ra ctl parallelepiped which defines t
75. om oldest through LowerSeries to UpperSeries at the top Check that the two formations within the UpperSeries are in the correct stratigraphic order the UpperCover must be on top above the MiddleCover Also check the groupings for series breaks are correct and check the Reference Bottom Choose Close to close the Stratigraphic Pile Viewer If required from the main menu choose Geology gt Stratigraphic Pile Create or Edit and repeat steps 2 and 3 as required to rearrange the formations into the correct stratigraphic order gam Stratigraphic Pile Viewer Reference Bottom UpperCover UpperSeries Onlap T iddleCover LowerSeries Onlap LowerCover BasalSeries Onlap Basement Save JPEG tal Save CSV File Fq Close 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 32 Contents Help Top Contents Top 4 Back gt 5 Erase all model geology from Section1 6 Remove the model plot of the earlier model geology in Section1 Select Section tab in the 2D Viewer From the main menu choose Model gt Erase All Model Geology OR From the shortcut menu in the 2D Viewer right click in the background choose Erase All Model Geology OR In the Model toolbar choose Erase all model geology n Import the prepared data into Section One of your collaborators has already revised Section1 for you Nowyou need to import the data The fil
76. p Contents Top 4 Back gt 33 Create or Edit geology series and t Reference Formations Dyke Relationship 2 Onlap If necessary select one of the series and use Move up or Move down to put UpperSeries on top Check that Reference has been set to Bottom Choose Close Save your project From the main menu choose Project gt Save OR From the Project toolbar choose Save ll OR Press CTRL S Check the effect of the above steps for the creation of the Stratigraphic pile From the main menu choose Geology gt Stratigraphic Pile Visualise ap Stratigraphic Pile Viewer Reference Bottom UpperSeries Onlap UpperCover LowerSeries Onlap gt LowerCover 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 10 Contents Help Top q Back gt A1 Stage 2 Create asection Parent topic Tutorial Al A simple model with two formations Contents Top In a typical geology mapping project we need to define one or more cross sections Geology mapped at surface can be imported to the surface topography section While geology interpreted or mapped on an underground section can be like wise imported to an appropriate pre created cross section Assume your field mapping area shows a NE SW regional strike to the geology You therefore decide to define a NW SE cross section orthogonal to regional strike Th
77. p BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 12 Contents Help Top 4q Back gt 4 Create the section from the points trace From the main menu choose Section gt Create a Section from Its Trace OR on the main toolbar choose Create a Section from ItsTrace OR choose CTRL T DI Create a Section from its Trace e Section Name Section 1 Orientation Vertical Dipping at 90 degrees First Point First Point at x 100486 508m y 2009462 375m 7 169 3876m U D V 169 876 Section Limits Min 8000 0 Max 2000 0 mi a Help af Create Close Enter the name Section1l Accept all other defaults Choose Create and then Close GeoModeller creates a new Section1 tab in the 2D Viewer and shows the new section Also shown on every section is the trace line of any other intersecting section thus the trace of Section1 is shown on the Topography section and the trace of the Topography section is shown on Section i e the profile of the topography you imported from DTM semi The outline of each section is also shown in the 3D Viewer wf amp Topography Ed Section S5 Topography Fa wf Section x Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 13 Contents Help Top Contents Top 4 Back gt 5 Examine the project in the 3D Viewer Select the 3D Viewer Locate the 3D Viewe
78. p menu Make changes then gt Edit and gt Close Save your project Define one orientation point associated with the fault as follows See Al Stage 3 Import geology data to the section in Tutorial Al A simple model with two formations for detailed instructions about this type of step From the 2D Viewer toolbar choose Create OR press c From the Points List Editor toolbar choose Delete all Points a The attitude of the fault dip and dip direction has been measured in the field at the same place as the upper right data point of the fault In the Topography tab in the 2D Viewer click this point 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 62 Contents Help Top 4q Back gt From the main menu choose Geology gt 2D Structural gt Create Geology Orientation Data OR In the Structural toolbar choose Create Geology Orientation Data OR Press CTRL R In the Create Geology Orientation Data dialog box e Correct the point Coordinates if necessary e Enter Dip direction and Dip e Select the SW_NE Fault e Choose Create and then Close Geological Formations and Faults SW_NE Fault Observation ID Section Topography Provenance Unspecified Coordinates x j 2005000 Direction Dip Direction 13 BO Polarity Scclionn Normal Reverse Overturn Automatically Re edit Automatically Update Coordinates
79. place or Edit Add another density log you need to Firstly edit the cvs file in the Data Folder C GeoModeller GeoModeller2013 Build tutorial TutorialA Tutor ialA6 Data Drillhole H2 Densities csv Then either re import the field Using the A6 Stage 2 steps assigning Column D with another name eg New Densities OR Delete the first imported file see below and then simply re import Using the A6 Stage 2 steps Note Multiple Fields can exist for a Drill hole 2 Ifyou wish to delete a field from the H2 drillhole you need to Expand the Drillholes list in the Explore Menu left side The will become a Then Right click on H2 and gt Edit Explore Drillhole Properties H6 TY d 3 Drillholes Edit Format Help E E TutorialA5 Explore Edit Drilhole Log Drilhole logs ae 2 irs E i i G fl Formations P DrillholeH6 at X 103850 Y 2006920 i 1 pe ee Geological Log Geological Model Misfit 0 04 tle Dykes 7 e oar ocan z Ei P ye X 103850 g E it Faults Y 2006920 e 3 Ei Z 1557 98 a la ba sections FB Log Intervals Zz i BA Drillholes Granite 270 275 265 270 275 a o 3 pa ed Hi i BHD a lt x lt eae H3 i From 2480 Sail A To 4000 De S a a H4 iy User Defined Data m ma i i ee Ld HS fe Fields assays Sg Pra Ae H Histogram as F Bs Nev p g SD G ihe Appearance k ae iy Gi de De
80. r 4 p L a Ss Se ee SoS aene e aeee s i 713 077 j 653 494 u 100122 699 v 1998803 681 x 100122 699 y 1998803 681 z 4 497 Alignment Controls Preview lt gt Move Point db AddPoint Delete Point ee Reset Points Preview Off On Continuous i j u v x y Z 1 65 990 38 761 100000 000 2010000 000 100000 000 2 653 174 39 402 110000 000 2010000 000 110000 000 3 653 174 631 390 110000 000 2000000 000 110000 000 6 Choose OK GeoModeller reports the final dimension of the part of the image that it is using Choose OK Tranformed image OR Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 47 Contents Help Top Contents Top 4 Back gt GeoModeller lists the image in the Image manager and displays it in the 2D Viewer in the Topography tab Vs Topography EJ Section1 x Sectionz x 20 View Section Topography Images GeologyMap png Bi new Make sure the original image is not in the project directory Deselect All Invert If it is not visible select it in the Image manager and choose Show Close the Image manager 7 Save your project 8 Create a dyke Choose main menu Geology gt Dykes Create or Edit Use the following parameters make sure you enter the names exactly as shown case sensitive no spaces e Name Dyke e Colour green RGB 68 138 0 Cl
81. r gt Show Drillholes Set radius as exaggerated 150m Clearly the orange contact points on Section1 are too deep We will now edit them on Section1 Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 82 Contents Help Top q Back gt 3 Revise MiddleCover data in Section1 In the Topography Section we used the tape measure tool from the 2D toolbar and measured the location of H2 from the Section1 trace It is located nearly 600 m to the north east As a rough guide we decide to project the Drillhole H2 trace onto Section1 Model gt Project Data onto Sections in 2D Viewer Model Geophysics Interpolation Import Export View Wi Compute Ctrl M Plot the Model Settings Ctrl D Plot the Model on the Current Section ae Plot Model on All Sections in 2D Viewer Fa Visualise 3D Formations and Faults A Build 3D Geology Mesh Products Na Erase All Model Geology p Project Data onto Sections in 2D Viewer Ctrl I B Plot Model Along Section Intersections Ctrl E at Compare Model with Drillhole Observations wa Section 4 Using the steps to move data points described above we shifted the four deepest points for MiddleCover up to shallower depths closer to the bottom of Granite in the H2 projection e From the 2D Viewer toolbar choose Move points OR Press N e Select the MiddleCover contact points Click left and drag e
82. r completed project from Tutorial Al or the solution provided GeoModeller tutorial TutorialA TutorialAl Completed Project TutorialAl xml If you opened the solution from tutorial Al that we provided save it with a new name in the folder you are using for your tutorial data From the main menu choose Project gt Save AS OR From the Project toolbar choose Save As E OR Press CTRL SHIFT S Note that a completed version of this tutorial A2 is available in GeoModeller tutorial TutorialA TutorialA2 Completed_ Project TutorialA2 xml Do not overwrite it 2 Inthe 2D Viewer select the tab Section1 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 27 Contents Help Top 4q Back gt 3 Plot the model in Section using filled polygons From the main menu choose choose Model gt Plot the Model Settings OR From the Model toolbar choose Plot the Model Settings OR Press CTRL D Set the parameters e Check Show fill and clear Show lines e Default values for the other parameters Choose OK 4 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 28 Contents Help Top 4q Back gt A2 Stage 2 The basement and the sedimentary sequences Parent topic At the moment your project has two formations Tutorial A2 Several formations UpperCover t
83. r toolbar down the right hand side of the workspace Practice operating the 3D Viewer Drag with left mouse button Zoom Hold CTRL and drag up with left mouse button to zoom in make diagram larger drag down to zoom out Mouse wheel also does the same or smaller Pan Hold CTRL and drag with centre mouse button OR move diagram t From the 3D Viewer toolbar choose Pan once and drag the display to the place you require using the left mouse button 30 View BSE 6 Save your project A1 Stage 2 Discussion The sections you have created provide you with the traditional tools used by geologists A map view and one or more section views of the 3D project space You can use the sections to input geology observations from outcrop such as geology contacts or dip and dip direction data Your input data may also be interpretive e g the assumed location of a contact based on your understanding of the most likely 3D geology of the project area Note you can tag data as observed or interpreted or model constructor for future reference See steps below in Stage 3 Later in this tutorial we compute the 3D geology model We will again use the sections as a means of examining the computed model by plotting from the model geology into the various section views 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 14 Contents Help Top
84. recognize to use Basement BasalSeries everywhere in the space below the base of the LowerCover formation 2 Plot the model geology in Section with the following parameters Select Section1 tab in the 2D Viewer From the main menu choose choose Model gt Plot the Model Settings OR From the Model toolbar choose Plot the Model Settings OR Press CTRL D Check Show fill and clear Show lines Choose OK According with the current model computation Section1 contains only two formations Basement at the bottom and LowerCover which fills the space up to the topographic surface 3 Re compute for the complete model In this step we compute the complete model with the UpperSeries which includes the MiddleCover and UpperCover formations This model uses both the structural data on Section1 and the geology data of the UpperCover formation that we have observed on the topographic surface It uses the information recorded in the geological pile to manage the relationships between the different series Compute the 3D model with the following parameters Model gt Plot the Model Settings e Series to interpolate Select All e Sections to take into account Select All Contents Top 2012 Intrepid Geophysics amp BRGM q Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 35 Contents Help Top 4q Back gt 4 Plot the model geology in Section using fill Select the Section tab in the 2D Viewer
85. rst GeoModeller Model 26 Contents Help Top 4 Back gt Tutorial A2 Several formations that overlap each other Parent topic Tutorial A A First Geology Modelling Experience In this tutorial you will build a 3D model with several geology formations that have more complex relationships Using GeoModeller you will e Open an existing project e Add geology formations to a project e Modify the geological pile e Plot model geology cross sections that are automatically coherent with all other sections The starting point is the work completed in Tutorial Al A simple model with two formations Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 Build tutorial TutorialA Tut orialA2 Completed project TutorialA2 xml Do not overwrite it In this tutorial e A2 Stage 1 Open the project e A2 Stage 2 The basement and the sedimentary sequences e A2 Stage 3 Intermediate models A2 Stage 1 Open the project Parent topic Tutorial A2 Several formations that overlap each other Contents Top Open the completed project from Tutorial Al A simple model with two formations You do not need to have completed this perfectly yourself We have provided a copy in the set of tutorial files A2 Stage 1 Steps 1 Open the completed project from Tutorial A1 From the main menu choose Project gt Open OR From the Project toolbar choose Open OR Press CTRL O Open you
86. s as different series 1 e they would not share orientation data and they have not been exposed to the same tectonic history On the other hand the MiddleCover and UpperCover formations are concordant We can interpolate those two together in the same series The new pile will look like this UpperSeries UpperCover Onlap MiddleCover Notice that the UpperCover and MiddleCover formations belong to the same series named UpperSeries Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt Contents Top GeoModeller User Manual Tutorial A First GeoModeller Model 29 Contents Help Top 4 Back gt A2 Stage 2 Steps 1 Add the two new formations specified above Choose the main menu option Geology gt Formations Create or Edit In the Create Geology Formations dialog box use the following sequence e Enter the Name e Specify the Colour Click the Colour bar Use the RGB tab and OK if you want to get it exact but this is not vital e Choose Add When finished choose Close Create or Edit Geology Formations Geology Formations Dy Appearance J LowerCover Create Geology Formation Name Basement Colour 2 Create anew series for the Basement as specified above When you choose Close in the previous step GeoModeller may display the New formation creation tip box New formation s have been created They have not yet been added to the Stratigraphic Pile Do you wish to
87. s now revised 10 Save your project Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 81 Contents Help Top 4q Back gt A5 Stage 4 Re compute using drillholes amp modify the MiddleCover contact Parent topic Tutorial There is still an inconsistency between the current model and drillhole H2 The MiddleCover AS Incorporating yellow unit should be absent in H2 One possible interpretation for this scenario is that the Seen basal MiddleCover contact is shallower than currently modeled and becomes consumed by the Granite intrusion near the H2 trace coming from the west Again we assume the drillhole data are realiable A5 Stage 4 Steps 1 Explore tree reminds us that data for MiddleCover exist only on Section1 and in drilllholes H1 amp H3 We therefore suspect needing to edit the interpretive data on Section1 and or needing to add more data around the area of drillhole H2 which lies very close to Section2 TutorialAs be P Formations Copi graphy i ve gt ff orithotes 2 Another way to view the geology contacts and trouble shoot why is the model wrong Is to view the geology contact data and drillholes at the same time in 3D From the main menu View gt 3D Viewer gt Show Interface Data Select the geology data to display MiddleCover then OK Similarly View gt 3D Viewe
88. t 1 geology contact point for each formation within that series and at least 1 geology orientation data point for the series within the limits of the modelled zone For the LowerSeries the imported contact data and their associated geology orientation data meet this requirement For the UpperSeries there are contact data points on both Section1 and the Topography section and two orientation data points on the Topography section A2 Stage 3 Intermediate models Parent topic Tutorial A2 Several formations that overlap each other Contents Top It is now possible to calculate the revised 3D model based on these new data To better understand how GeoModeller works let s first build a model which takes into account only the Basement and LowerCover A2 Stage 3 Steps 1 Compute the 3D model with the following parameters From the main menu choose Model gt Compute OR From the Model toolbar choose OR Press CTRL M e Series to interpolate LowerSeries Uncheck the UpperSeries e Sections to take into account Topography and Section1 Choose OK 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 34 Contents Help Top 4q Back gt Notice the BasalSeries does not appear in the calculation list as a series to Compute Because there are no data for the bottom of the BasalSeries given it is outside the model 3D GeoModeller does however
89. the operation Review the geology shown on the three sections Topography Section1 Section2 Examine the geological pile to review the formations in this project and understand their relationships Display the stratigraphic pile viewer From the main menu choose Geology gt Stratigraphic Pile Visualise Eg Stratigraphic Pile Viewer Reference Bottom DykeSeries Erode IntrusiveSeries Erode Granite LowerCover LowerSeries Onlap Basement UpperCover UpperSeries Onlap MiddleCover BasalSeries Onlap Geers Ele Choose Close when finished your review Save your project A4 Stage 1 Discussion The Granite and Dyke are intrusives cross cut pre existing Cover and Basement units Logically they are placed youngest in the stratigraphic pile and are assigned to Erode The remaining units are of type Onlap They are progressively deposited on the existing older formations without eroding them In the field the UpperCover and MiddleCover formations are conformable and share a common tectonic history To account for this we can assign them to the same series UpperSeries Therefore the two formations willbe treated jointly in computation of the model They will remain sub parallel everywhere and will share orientation data The basal contacts of these two formations within a series can never intersect each other 2012 Intrepid Geophysics amp BRGM 4q Back gt
90. tions aR Dykes i Faults H B Sections Wy Drillholes 30 Geology Sp Grids and Meshes e a 0 4 7 b FAAA ERRE TEAC E LOAL 6 Use project Explore tree on the left hand side to expand the Sections list the will change to a Note the Explore tree now shows the DTM as part of the Grids amp Meshes by the sign 7 To display the DTM grid as a colour image in the section view First completely expand the DTM grid below Grids and Meshes Then choose the grid with a left mouse click and right mouse click to open the Menu Choose Field Visualisation Manager ie Explore 3 GB TutorialA1 P Formations P Dykes 3t Faults A Sections WW Drillholes g 3D Geology WS Grids and Meshes A om om DTM 75 Hide Field from All Views eT Field Visualisation Manager N 2h Appearance 8 Inthe Field Visualisation Manager window tick View on section for Topography gt OK nal Project A tion Geology Model Geophysics Interpolation impor Export View Window Help 7 BY FOF YA Kerr E BOCAS AAP ABA J E DE Dovie Ea Q AS hs CAJE v Dagga an Aga amp Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 6 Contents Help Top Contents Top 9 10 4 Back gt Save the project Ideally Save As to save the pro
91. to LowerCover blue north west of the fault left side of section1 The data object becomes selected when the data group is white From the shortcut menu at this point choose Edit GeoModeller displays the Edit geology data dialog box a 3 Edit geology data Geological Formations Dykes and Faults Section Section1i i Provenance 1 Unspecified i Associated orientation data z Associated Compute Orthogonal Dip Constant LowerCover Plunge Dip and Direction Dip and Dip direction constant Dip 3 Delete Polarity Normal p SET Attributes o Reverse verti 2h Appearance Automatically re edit Help edt Egctose Check Associated Select Orthogonal from the Compute options Select Normal from the Polarity options Choose Edit and then Close Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 70 Contents Help Top 4q Back gt GeoModeller displays the new associated orthogonal orientation data using dip symbols Their azimuth is aligned to the strike of Section1 and the dip of each one is determined from the two geology data points either side 4 Before considering data for the other side of the fault SE look at what our new interpretation yields without modelling the fault Compute the 3D model with all components except the fault Use the following parameters e Clear Faults only
92. ved on the granite into the Topography Map_DTM section The file is GeoModeller tutorial TutorialA TutorialA3 Data Map Granite data Import the data as you did in earlier steps The data contains the name of the Granite formation and GeoModeller automatically assigns it Select the Topography tab in the 2D Viewer Select Import gt 2D Geology to Section gt Contacts Structure BRGM 3 Save your project 4 Start defining a new section for seismic data Section2 by adding points to the Points List To learn more about the shape of this granite you asked to review some seismic data shot on a line named Section2_010 Your team geophysicist interprets the seismic reflection profile and shows you his final interpreted shape of the granite in the section You need to define a new section corresponding to this seismic profile On the Topography section make the trace of the new section using the Points List Editor and then create the section Section2 from its trace The coordinates of the ends of Section2 are po X East U Y North V 100010 2005000 End 109990 2009990 Contents Top 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 39 Contents Help Top 4q Back gt Select the Topography section in the 2D Viewer From the 2D Viewer toolbar choose Create OR press C From the Points List Editor toolbar choose Delete all Points to
93. work completed in Tutorial A2 Several formations that overlap each other Note that a completed version of this tutorial is available in C GeoModeller GeoModeller2013 Build tutorial TutorialA Tut orialA3 Completed project TutorialA3 xml Do not overwrite it In this tutorial A3 Stage 1 Open the project A3 Stage 2 An intrusive granite A3 Stage 3 An intrusive dyke A3 Stage 4 The final 3D model A3 Stage 1 Open the project Parent topic _ Tutorial A3 A3 Stage 1 Steps Intrusive bodies 1 Open the completed project from Tutorial A2 Contents Top From the main menu choose Project gt Open OR From the Project toolbar choose Open amp OR Press CTRL O Open your completed project from Tutorial A1 or the solution provided GeoModeller tutorial TutorialA TutorialA2 Completed Project Tu torialA2 xml If you opened the solution that we provided save it with a new name in the folder you are using for your tutorial data From the main menu choose Project gt Save As OR From the Project toolbar choose Save As kd OR Press CTRL SHIFT S Note that a completed version of this tutorial A3 1s available in GeoModeller tutorial TutorialA TutorialA3 Completed_ Project Tut orialA3 xml Do not overwrite it 2012 Intrepid Geophysics amp BRGM 4 Back gt GeoModeller User Manual Tutorial A First GeoModeller Model 37 Contents Help Top q Back gt A3 Stage 2 An intrusive granite During your fiel

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