3D GeoModeller Tutorial Case Study B
Contents
1. View the new data in the Map_DTM tab of the 2D Viewer LowerGrey Plum LoywerPink Green B4 Stage 2 Discussion We now have a more complete geological mapping project We have defined all of the basics e Project East North amp Z extents e Topography e Stratigraphy units ordered in a stratigraphic pile and grouped into series Two faults And fairly complete geological mapping in the Map_DTM section view e About 100 geological contact points e Contact points that define the location of two faults e Fourteen orientation data points for some geology and the two faults We are ready to recompute the model and see what we have achieved with this more complete geological mapping work B4 Stage 2 Recomputing and plotting the model B4 Stage 2 Steps Repeat the steps in Tutorial BB Compute the Model and Draw a Geology Map 1 Compute the model with all components selected Carry out the steps in B3 Stage 2 Computing the model 2 Plot the model with lines on Map_DTM section Carry out the steps in B3 Stage 3 Plotting the model Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 32 Contents Help Top 4 Back gt B4 Stage 3 Compute and render discuss result In this stage we plot the model using lines with the image beneath We assess its accuracy and discuss B4 Stage 3 Steps Using t2. Hide Shading 2 Appearance Plot the model on the current section Reset wiew Display parameters Preview Presentation Background colour Refresh Image Manager Save Image Erft Select All Deselect All Invert Data Hep s Properties 2 Choose New 3D GeoModeller displays the Edit and align image dialog box Choose Browse and open GeoModeller tutorial CaseStudyB TutorialB1 Data FieldGeologyWithCOVER jpg 9 Edit and Align Image _ Image C GeoModeller GeoModeller2 0 0 452adcebeF7Fo_x36 tutorial aseStudyB Tutorial 1 Data FieldGealogyiVithCOVER jpg Section Map OTM Ale GeoModeller GeaModeller2 0 0 45adceberro_xdo utoral CaseStudy6 Tutoria 1 Data FiedbeclagyithOOvVER jog Sale ee COC P EST Sie TCE Rag a ur12973 620 v 24074 540 x 12973 620 y 24074 540 7 99 000 Alignment Controls Preview ate Move point db Addpoint Delete point E Reset points Preview OOF On Continuous i j u Y x Y z 0 000 0 000 10000 000 A 2 484 000 0 000 24000 000 3 484 000 00 000 14000 0000 T Hep Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd lt 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 12 Contents Help Top 4 Back gt If your image has three or more points for which you know the geographical coordinates y
3. Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 24 Contents Help Top 4 Back gt Tutorial B3 Compute the Model and Draw a Geology Map Parent topic We have already created the project and completed stratigraphy and faults In ea case Tutorial B2 Input Initial Geological Observations we completed all of the simple study a data entry We are now ready to compute the model and view 3D results Antonio s map At this point we have a very minimalist geological mapping project e Project East North amp Z extents defined Topography defined e Stratigraphy units defined and ordered in a stratigraphic pile and grouped into series Two faults defined e Some minimalist geological mapping recorded in the Map_DT M section view Eleven geological contact points about one per unit e A handful of contact points defining the location of two faults e Fourteen orientation data points for selected geology and the two faults PJ UpperPink Orange We are ready to compute the model and see what 1s achieved with this minimalist mapping work Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 25 Contents Help Top 4 Back gt B3 Stage 1 Getting started and computing the model
4. OR In the Structural toolbar choose Create geology data OR Press CTRL G The Create geology data dialog box appears s 39 Create geology data Geological Formations Dykes and Faults Observation ID Section Map_ DIM Provenance Unspecified Associated orientation data Associated Compute Orthogonal 2 Dip Constant Dip D j Plunge Dip and Direction Dip 0 Direction 0 Dip and Dip direction constant Dip 0 Direction 0 Polarity Normal Reverse Overturned Thickness i Automatically re edit P Help Create Fd close 2 From the 2D Viewer toolbar choose Create 3 From the Points list editor toolbar choose Delete all Points to erase any existing contents of the Points List 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 18 Contents Help Top 4 Back gt 4 In Map DTM in the 2D Viewer click the contact at the top of formation Plum as shown in the picture 5 Inthe Create geology data dialog box in Geological formations and fonts select Plum 6 Choose Create 3D GeoModeller has now recorded this point as a geological observation in section Map_DTM assigned as a contact point at the top of formation Plum 7 Save your project 8 Add more geological observations using the same steps each time assigning the selected point to the correct geological for
5. 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 Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 28 Contents Help Top 4 Back gt B3 Stage 4 Compute and render Discussion of result In this stage we plot the model using lines over the image beneath We assess its accuracy and discuss B3 Stage 4 Steps Using the instructions in B3 Stage 3 Discussion and further exploration 1 Erase all model geology 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 2 Display the image In Map_DTM in the 2D Viewer from the shortcut menu choose the image name to show or hide it OR Press PAGEUP or PAGEDOWN to show and END to hide 3 Plot the model with lines 4 Examine the outcome Are these results OK B3 Stage 4 Discussion The contact contours do honour the sampled points of geology The faults are well delineated by several sample points These are honoured by the model result The orientation data are honoured The result is not too bad considering the lazy mapping job that we have done Those few points that have been mapped are honoured accurately Even with t
6. can continue with your version of the project that you completed in Tutorial B3 Compute the Model and Draw a Geology Map or open the project that we have prepared ready to start this tutorial B4 Stage 1 Steps 1 Open the completed project from Tutorial B3 To use the prepared version e Open GeoModeller tutorial CaseStudyB TutorialB3 Completed_ project TutorialB3 xml e 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 B4 is available in GeoModeller tutorial CaseStudyB TutorialB4 Completed_ project TutorialB4 xml Do not overwrite it 2 Select Map_DTM tab in the 2D Viewer 3 Erase all model geology 4 Hide the image if it is visible B4 Stage 2 Importing additional data Our geologist has supplied more detailed contact data for the site The data is in an ASCII file the 3D GeoModeller can import B4 Stage 2 Steps 1 Import the data in the file GeoModeller tutorial CaseStudyB TutorialB4 Data TutorialB4 data Select Map_DTM tab in the 2D Viewer From the main menu choose Import gt Import 2D data ap Import 2D data to Map_DTM section File Browse view ES Mo e Choose Browse and open the file Choose OK Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 31 Contents Help Top 4 Back gt
7. defining the fault attitude shown in black in this tutorial but not shown in the image Alternatively You can import the 18 orientation points from a data file supplied GeoModeller tutorial CaseStudyB TutorialB2 Data Orientation_B2 data From the main menu choose Import gt Import 2D data ap Import 2D data to Map_DTM section File Browse View 2 Help af OK Fd close Choose Browse open the file and choose OK 8 Close the Create geology orientation data dialog box Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 22 Contents Help Top 4 Back gt B2 Stage 3 Further optional activities Now that you have entered geology contact observations and some orientation data defined 3D GeoModeller can compute and plot the model 1 From the main menu choose Model gt Compute OR From the Model toolbar choose OR Press CTRL M Use these settings Sections to take into account All Series to interpolate All Choose OK Select Map_DTM 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 Pess CTRL D Set the parameters Check Show fill and clear Show lines e Use default values for the other parameters Choose OK Your resul
8. the Blaxxun Contact user manual for full details B5 Stage 4 Blaxxun Contact controls To select 2D or 3D display select one of the Viewpoints buttons at the right of the display area scroll to reveal if necessary OR From the display area shortcut right click menu choose Viewpoints gt and the option you require Prev Viewpoint PageUp Contents Help Top ieed the blaxxun client side to change the sing the interface Next Viewpoint Viewpoint Tour Reset PageDown Esc v N_Plan_view N_Perspective NE_Plan_view NE_Perspective E_Perspective SE_Plan_view SE_Perspective S Plan_view S Perspective SW_Plan_view SW_Perspective W_Plan_view W_Perspective NW _Plan_view NW_Perspective Movement gt Speed gt View my Avatar Settings Help gt To change vertical exaggeration select one of the buttons in Vertical Scale Model at the right of the window scroll to reveal if necessary To rotate the display from the display area shortcut right click menu choose Movement gt Examine or press CTRL SHIFT E Drag with the left mouse button to rotate mouse pointer shows E Viewpoints Speed View my Avatar v Examine Settings Fly Help Pan Jump Straighten Up Reset Collision Gravity 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd Ctrl Shift W Ctri Shift S Ctri Shift E Ctrl Shift F Ctrl Shift P F3 Ctrl Shift U Esc Ctrl Shift C Ctrl Sh
9. GeoModeller User Manual Tutorial case study B Antonio s map 1 Contents Help Top lt 4 Back gt Tutorial case study B Antonio s map Parent topic Author Philip McInerney Intrepid Geophysics User Manual and Tutoriale Editor David Stephensen www qdt com au Update V2012 Stewart Hore This case study leads the project geologist through the process of Creating a 3D GeoModeller project from scratch Creating the objects to be used in the project geological formations faults stratigraphic pile Entering geological observations from the field mapping contacts and orientation data Computing the 3D model Generating traditional 2D views maps and sections Generating 3D shapes and progressing to web ready VRML files for interactive 3D display This tutorial is based on a simple map used in Antonio Guillen s Introduction to 8D GeoModeller PowerPoint presentation It has a simple layered stratigraphy some broad folds and two faults In this case study Contents Help Top Tutorial B1 Getting Started with Case Study B Tutorial B2 Input Initial Geological Observations Tutorial B8 Compute the Model and Draw a Geology Map Tutorial B4 Add Data Recompute Redraw the Geology Map Tutorial B5 Cross sections Shapes and Other Model Products 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 2 Conten
10. S Plan Persi LowerPink r sw Pian Pers Plum r wW LowerGrey a Pa Pen UpperGrey a i an ESS Orange r Vertical Scale Model UpperPink a 14 Blue r 21 Cover TA gt zi Al E Core og My Computer 5 Check some or all of the geology formation check boxes on the left side of the screen You can also check the check boxes for display of axes as a reference frame TutorialB5 Use the texture menu on tt Axis XY Plane axis E YZ Plane axis E XZ Plane axis rm Geological units Green v LowerPink E Plum vV LowerGrey E UpperGrey Vv Orange a UpperPink Iv Blue E Cover L 6 When you first view the VRML data the colours just fill the spaces uniformly without the shading that gives a 3D illusion You can apply a texture to each colour region Locate the Texture Model buttons in the options on the right side of the window Scroll down if necessary To apply a texture to a formation choose a texture button and then click the formation in the display area Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt Tutorial case study B Antonio s map 41 lt 4 Back gt GeoModeller User Manual Contents Help Top start stop Texture Model Reset Amphibolite Argile Calcaire Conglomerat Gabbra Gneiss Granite Gres Migmatites You can rotate move and reset the display and change its vertical exaggeration This tutorial only has room for brief instructions Consult
11. You can continue with your version of the project that you completed in Tutorial B2 Input Initial Geological Observations or open the project that we have prepared ready to start this tutorial B3 Stage 1 Steps 1 Open the completed project from Tutorial B2 To use the prepared version e Open GeoModeller tutorial CaseStudyB TutorialB2 Completed_project TutorialB2 xml 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 B3 is available as GeoModeller tutorial CaseStudyB TutorialB3 Completed_ project TutorialB3 xml Do not overwrite it B3 Stage 2 Computing the model Contents Help Top When 3D GeoModeller computes the model it produces a set of equations from which it can render pictures of the model B3 Stage 2 Steps 1 From the main menu choose Model gt Compute OR From the Model toolbar choose OR Press CTRL M Sections to take into account Select All Parameters Hint Select All Deselect All Global Parameters Model limits XMin 10000 XMax YMin 20000 YMax ZMin 1000 ZMax Baiiia rae xe In the Compute the model dialog box set parameters as follows Use these settings Sections to take into account All Series to interpolate All Choose OK 2 Save your project 2013 BRGM amp Desmond Fitzgerald amp Assoc
12. ay in a web browser NOTE This is for Micrsoft Internet Explorer only After building the shapes we can generate a set of Virtual Reality Modelling Language VRML files for interactive web display The process takes about thirty seconds for this 2 4 MHz PC with 512 Mb RAM From the main menu choose Export gt Export 3D model gt VRML project website Specify a folder for your files 3D GeoModeller places a zip file in that folder containing the VRML web pages B5 Stage 3 Solutions provided We supply a completed version of the VRML website according to the instructions in this tutorial in your 3D GeoModeller installation folders Its path is GeoModeller tutorial CaseStudyB TutorialB5 Completed _VRML_ Site Do not overwrite these files We also provide a high resolution resolution version We generated it from shapes defined with 10 m vertical resolution and 25 m horizontal resolution The finer vertical resolution is more suited to the thin layers of this model You can download this ina zip file VRML_10mZ_25mxXY_Resolution zip from the 3D GeoModeller website www geomodeller com B5 Stage 4 Viewing the VRML web pages Contents Help Top Before viewing the VRML pages you need to Ensure that you have a VRML viewer plug in for your browser Unzip the files into folders To save time 1n this exercise we have generated a relatively coarse grained 50 m x 50 m set of shapes Our output looks OK but in a pro
13. duction enviromment you may require finer definition B5 Stage 4 Steps 1 2 To view the VRML interactive display If you do not have a VRML viewer install one on your computer We have tested and used the Blaxxun Contact VRML plug in for Microsoft Internet Explorer It enables you to view and interact with web ready VRML files in a standard web browser You can obtain this from the following download ftp ftp intrepid geophysics com pub geomodeller vrml blaxxunContact53 exe Open the zip file that 3D GeoModeller created Unzip it into a folder of your choice Ensure that the Use folder names option is checked The VRML site consists of the following files and folders File index html for launching the site Folder HTML with various VRML display control files Folder VRML with the geology shape files Open the file index html using Microsoft Internet Explorer If Microsoft Internet Explorer is your default browser you can just double click index html If you have several browsers and Microsoft Internet Explorer is not your default browser use Open With from the shortcut right click menu in Windows Explorer or My Computer to launch it 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 40 Contents Help Top 4 Back gt Depending on your security settings you may need to allow blocked content Your browser may display a wa
14. e Input the Name assign an appropriate Colour choose Add ap Create or Edit faults Faults Appearance 3 Delete Delete Create a new fault Clu Export When finished choose Close Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 9 Contents Help Top 4 Back gt 3 When you select Close you may be prompted to start the link faults with series editor Choose Yes start link Faults With Series editor If the dialog does not appear start the editor from the main menu Choose Geology gt Faults Link faults with series 3D GeoModeller will display the Link faults with series dialog box 4 Youcan specify that faults affect some series within the stratigraphic pile but have no impact on other series Define the series fault relationships Check the cells in the table so that Case_B Series is linked with both the ENE and WNW faults Do not link the Case_B_ Cover series to the faults ap Link faults with series P Help Column size 7 Auto ea c Reset TE Save CSV file af OK Choose OK 5 You can define a fault as stopping on some other fault Define the fault fault relationship From the main menu choose Geology gt Faults Link faults with faults 3D GeoModeller dsplays the Link faults with faults dialog box Check the boxes to specif
15. e B Section Dipping at 90 degrees First Point First Point at 10237 451m y 23473 922m z 0 000m U D v Section Limits ZMin 1000 0 ZMax 100 0 m Choose Create and then Close 6 Plot the model using fill in this new section view 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 Check Show fill and clear Show lines Choose OK 7 Save the project Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 37 Contents Help Top 4 Back gt B5 Stage 3 Generating and exporting 3D shapes We can generate a set of 3D shapes defined by triangulated surfaces Again the process interrogates the model We specify a 3D mesh of points that defines the fineness for the triangulation computation B5 Stage 3 Steps 1 Choose main menu Model gt Build 3D formations and faults OR In the Model toolbar choose Build 3D formations and faults 2 Inthe Build 3D formation and fault shapes dialog box Select Volume Select Anistropic with X Y and Z all set to 50 Choose OK 9a Build 3D Formation and 3D Shape parameters type and mesh resolution Build Formations X Faults Type GP Volume GP column A Ep Surface J Draw Shapes after building Resolution 7 Render q
16. e table Jinan Maximum Range Ea ooo min 16000 man North 20 000 Ymin 23 700 Ymax 3 700m RL Z 1 000 Zmin 100 Zmax The Z values range between 1000 for below ground and 100 up in the air 100 m above ground level oa ls M Name Version 2 0 Location c GeoModeller NewProject l Browse Authors stewart Date 10 2 2012 7 33 55 Description Projection Local Unit m Precision L m Height datum Local aa W Dynamic selection in Viewers Project limits xMin 0 0 XMax 1000 0 m YMin 0 0 YMax 1000 0 m Min 1000 0 ZMax 0 0 m ES wo dou Choose OK 3D GeoModeller displays the Project creation successful dialog box Project Creation Successful Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 4 Contents Help Top 4 Back gt 3 Choose Define as a horizontal plane For this project use a horizontal topography at zero elevation Give it a name Map_DTM qo Define topography as an horizontal plane Name SurfaceTopography Projection Local Unit m Plane elevation 7 Project bounding box 10000 XMax 14000 m 20000 YMax 23700 m ZMin 1000 2Max 100 m Description Topography of the model P Help af OK Fd close 4 Save the project with a new name and location away from the 3D GeoModel
17. et Reference Top Bottom to Top 4 Choose New Series 3D GeoModeller displays the Create geology series dialog box 5 Define a first series containing the folded stratigraphy Select items in the Formations list and use the across arrow buttons to add formations to the Series You can use the Move up and Move down to adjust the stratigraphic order oldest strata at the bottom and youngest at the top Adjust the order to match that listed in the picture above Green up to Blue Set the Relationship for this series to Onlap Name the series Case _B Series Fropertes Name of the series Case_B_Series De Relationship Onlap Contents Available Formations Dykes Formations Dykes in Series ml Se Add to Series 3 i Remove from Series J UpperGrey E toversey Plum om LowerPink Choose Commit Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 7 Contents Help Top 4 Back gt 6 Define a second series containing the unit Cover also with Relationship Onlap Call it Case_B Cover Choose Commit and then Close Return to the Create Edit geology series and the geological pile dialog box ap Create or Edit geology series and Reference Tz Top L Bottom Formation s Dyke Relationship 7 Check the stratigra
18. eystrokes PAGEUP and PAGEDOWN enable you switch between the available images Viewing the model with trend lines The following illustration is of the computed potential for this series plotted using the Show trend lines option Observe e How the iso potentials honour the orientation data and the trends of the exposed geological contacts and then e How they provide the basis for the interpolation of the contacts beneath cover Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 34 Contents Help Top 4 Back gt Tutorial B5 Cross sections Shapes and Other Model Products Parent topic In this tutorial we Tutorial case OE study B e Create a cross section and view the model in it Antonio smap Calculate and export the 3D model in Virtual Reality Modelling Language VRML and view it on a web page B5 Stage 1 Getting started You can continue with your version of the project that you completed in Tutorial B4 Add Data Recompute Redraw the Geology Map or open the project that we have prepared ready to start this tutorial B5 Stage 1 Steps 1 Open the completed project from Tutorial B4 To use the prepared version e Open GeoModeller tutorial CaseStudyB TutorialB4 Completed_ project TutorialB4 xml e Save the project with a new name in the folder you are using for your tutorial data No
19. he instructions in B3 Stage 3 Discussion and further exploration 1 Erase all model geology 2 Display the image 3 Plot the model usig lines 4 Examine the outcome Are these results OK B4 Stage 3 Discussion Quality of the model The model contact lines honour the sampled points of geology The model honours the orientation data A 3D GeoModeller model cannot claim to be the correct answer At best it can only claim to be a model that is consistent with the observed geological observations Certainly the model in this case is in good agreement with the exposed mapped geology A large portion of the map generated above is interpolation For this project we actually know what is under the cover Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 33 Contents Help Top 4 Back gt The image without cover Recall that we have a map without the cover so we can compare our results with it The map is in the file GeoModeller tutorial CaseStudyB TutorialB4 Data FieldGeology jpg Admittedly this is a simple geology map with broad predictable folding but the interpolation from about 20 outcrop has achieved a good result You could import and georegister this image in the project Use the instructions in B1 Stage 4 Import geology image Note that if there are several images ina section the k
20. he points list Click a few points along the ENE fault the almost horizontal one in the centre of teh image and assign those points to the ENE Fault Repeat for the WNW Fault Save your project Enter the two fault orientation points one for each fault Referring to the data in the picture at the start of this tutorial and using the same steps as you used for geological orientation data in B2 Stage 3 Enter orientation data from the map view enter the two orientation points for the two faults Note If you imported the orientation data instead of entering it in B2 Stage 3 Enter orientation data from the map view omit this step You have already imported your orientation data Save your project 5 Check that the series fault and fault fault relationships are in the same state that you specified in B1 Stage 3 Enter faults define fault strata relationship define fault fault relationship in Tutorial B1 Getting Started with Case Study B B2 Stage 4 Discussion While it is important to correctly record the attitude of a fault in 3D space in this case vertical the choice of facing direction for these faults is arbitrary It does not matter whether the ENE Fault faces north or south 3D GeoModeller requires that each surface to be computed has at least one piece of orientation data Where you do not supply orientation data 3D GeoModeller does not compute a solution and in the model the feature will not exist
21. hese few points the modelled geology is crudely correct Of course the model is wrong in many places We know it s wrong because we can see in the geology image where it has gone wrong Can we do a better geological mapping job on this project area The faults are well defined no further work needed Orientation data we ve used all the measurements that are available No more needed Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 29 Contents Help Top 4 Back gt Geological contacts Although there is extensive cover we could still improve our mapping Taking this tutorial to a logical conclusion we could end up with a project with many more observations of the geology as shown in the following diagram What can we expect when we compute the revised model In Tutorial B4 Add Data Recompute Redraw the Geology Map Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 30 Contents Help Top 4 Back gt Tutorial B4a Add Data Recompute Redraw the Geology Map Parent topic In this tutorial we add further geological contact data to our project and examine the ea case resulting model for improvement study Antonio s map B4 Stage 1 Getting started and computing the model You
22. iates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 26 Contents Help Top 4 Back gt B3 Stage 3 Plotting the model At this point 3D GeoModeller has computed a model but the model is simply a set of equations We now want to draw a map of the geology of this project area based on the computed 3D model We draw the map in the Map_DTM map view section Every map and section is drawn by interrogating the model 3D GeoModeller defines an x y mesh across the section view For each mesh node at point P x y z 3D GeoModeller asks the model what are you The answer is one of the geological formations such as Green or Plum Using this information as a starting framework 3D GeoModeller further interrogates the model to deduce where it should draw formation contact lines The fine ness or coarseness of this mesh will impact upon the quality of the rendered output It also impacts upon the speed of rendering B3 Stage 3 Steps 1 Select Map_DTM tab 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 Ad Plot the model setting i Section Map_DTM aa Plotting resolution Number of nodes u direction 50 v direction 50 Node spacing u 80 v 74m More Plot model geology E Show fill Show lines C Show trend lines Formations Number of t
23. ift G 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 42 Contents Help Top 4 Back gt To move the display from the display area shortcut right click menu choose Movement gt Slide or press CTRL SHIFT S Drag gently with the left mouse button in the opposite direction to the desired movement mouse pointer shows S This may take some practice If the display disappears reset it using one of the Viewpoints buttons To view the Blaxxun Contact on line help manual from the from the display area shortcut right click menu choose Help gt Online Manual The manual appears in a new window There are further options for rotating panning and zooming in the shortcut right click menu Here is an illustration of another VRML model display anir ECEN Tna ara VA ag ra nona AHLT r krh ie hira Purnama40 3DWEG Model Te Bb epee pou peed the hirer chai Uee the Secure menu on the right aide to chesge the unit s bariere b amaia help Ge cara che aeiae Axis Spin Model XY Plane axis Sikt YZ Plane asis sinp _ Aa FARE ae Texture Model Geological units BackaltcAunchers ite VolcanicBrecces PorphyriticAndesite Sibcabreccia Clay Breccia Dacite farnibl You have now successfully completed Tutorial B Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt
24. ion points corresponding to alignment points 2 and 3 MOONA 4000 E 23 700 N p430 008 j 57 636 u 15291 8660 w 19311 628 115291860 y 19311 628 2 100 000 i j u v x y Z 22 435 21 341 10000 000 23700 000 10000 000 23700 000 100 000 a 21 348 21 341 14000 000 23700 000 14000 000 23700 000 100 000 3 84000 400 000 14000 000 20197 107 14000 000 20197 107 100 000 x Y 10000 ggg 23700 0000 1 421 348 TEN 4000 000 23700 000 14000 000 23700 000 100 000 421 348 390 431 14000 000 20000 000 14000 000 20000 000 100 000 Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 14 Contents Help Top 4 Back gt 6 Choose OK 3D GeoModeller reports the final dimension of the part of the image that it is using Choose OK Information Griginal image dimensions 484 x 400 Transformed image dimensions 400 x 369 Tranformed image Ok 3D GeoModeller lists the image in the Image manager and displays it in the 2D Viewer in the Map_DTM tab If it is not visible select it in the Image manager and choose Show Close the Image manager 7 Save your project Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 15 Contents Help Top 4 Back gt Tutorial B2 Input Initial Geo
25. ler installation folders From the main menu choose Project gt Save As OR From the Project toolbar choose Save As kJ OR Press CTRL SHIFT S The save as operation is unusual When you specify a project name you are actually specifying a folder name 3D 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 this tutorial is available as GeoModeller tutorial CaseStudyB TutorialB1l Completed_project TutorialBl1 xml Do not overwrite it Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 5 Contents Help Top 4 Back gt B1 Stage 2 Enter stratigraphy define stratigraphic order define onlap or erode Parent topic In this stage we examine the project geology and define the stratigraphy and Tutorial B1 stratigraphic relationships Consider the image of project geology below Let s SEE ayo assume that the project geologist knows something about the project area and can with Case Study P J 8 8 8 PFO i B make the following decisions Simple layered stratigraphy with a common geological history so the strata can be grouped into a single series e Green is known to be the oldest unit On the basis of our assumed knowledge of the geology we need to define the stratigraphic co
26. logical Observations Parent topic We have finished specifying stratigraphy and faults and imported and georegistered a ea Cane topography map Now we are ready to start entering geology observations study Antonio s map B2 Stage 1 Getting started You can continue with your version of the project that you completed in Tutorial B1 Getting Started with Case Study B or open the project that we have prepared ready to start this tutorial B2 Stage 1 Steps 1 Open the completed project from Tutorial B1 To use the prepared version e Open GeoModeller tutorial CaseStudyB TutorialB1 Completed_project TutorialB1 xml e 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 B2 is available as GeoModeller tutorial CaseStudyB TutorialB2 Completed_ project TutorialB2 xml Do not overwrite it Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 16 Contents Help Top 4 Back gt 2 If not already showing Open Map_DTM in the 2D Viewer and display the geology map image If the Map_DTM tab is not visible In the Explorer tree expand Sections and select Map_DTM From the shortcut menu choose Open 2D viewer 3D GeoModeller displays the section in the 2D Viewer If the topography image is not showing In Map_DTM in the 2D Viewer from
27. lumn for the project area We shall put all strata in one series and add Cover eee Cover Uppersrey Py LowerGrey Blue m UpperPink ae Orange UpperGrey nP LowerGrey nae Plum LowerPink a Lower h a Green fs Pink E B1 Stage 2 Steps 1 From the main menu select Geology gt Formations Create Edit to create the geological formation objects 3D GeoModeller displays the Create Edit geology formations dialog box 2 Create a formation object for each of the above geological formations in the project area Type the Name assign an appropriate Colour choose Add When finished choose Close 3 When you choose Close 3D GeoModeller may display the New formation creation tip box New formation creation Jy New Formation s have been created They have not yet been added ee to the Stratigraphic Pile Do you wish to do this now Don t show this again Yes start Stratigraphic Pile editor No do it later Choose Yes start Stratigraphic Pile editor If this box does not appear from the main menu choose Stratigraphic pile Create or edit Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 6 Contents Help Top 4 Back gt 3D GeoModeller displays the Create Edit geology series and the geological pile dialog box ap Create or Edit geology series and Format Relatio S
28. mation in the stratigraphic pile Add the eleven points suggested in the map shown here This is a bare minimum of points just one or two points per geological formation The points shown in the illustration are all of course on the contact surfaces of formations Use your understanding of the stratigraphic pile to ensure that you assign each point to the top of the underlying formation in each case If you can t easily distinguish the two shades of grey you may cheat by looking at the geological map without the cover at the beginning of this case study Repeat steps 3 7 for each point 9 Close the Create geology data dialog box Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 19 Contents Help Top 4 Back gt B2 Stage 2 Discussion If you tried to compute the model at this point there would be nothing to compute Why In fact it would be possible to fit a surface through this minimal number of points Without any orientation data however it 1s not possible to decide which side is up and which is down Therefore GeoModeller will not compute a solution where there is no orientation data You must have at least one point of orientation data to determine facing B2 Stage 3 Enter orientation data from the map view Entering orientation data is similar to entering contact
29. ou can use the Edit and align image dialog box to georegister the image in your project After georegistration each point in the image corresponds to the correct location in the 3D 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 3D GeoModeller project The left panel has three movable alignment points You will move them to the correspond with the three known registration points in the image 3 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 gt Drag alignment point 1 to exactly align with the registration point in the image gt 4 Enter the coordinates of this point 10000 23700 in the table at the bottom of the dialog box as u and v for alignment point 1 j Ul v x y z 22 435 T 341 10000 000 23700 000 10000 000 23700 000 100 000 _ 84 000 14000 000 23502 893 14000 000 23502 893 100 000 3 484 010 a a00 14000 000 20197 107 14000 000 20197 107 100 000 Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 13 Contents Help Top 4 Back gt In the Section panel 3D GeoModeller warps the image to correctly geolocate this point CEANAL 5 Repeat steps 3 4 for the top right and bottom right registrat
30. phic order of the series Use Move up and Move down to adjust the stratigraphic order so that the oldest series Case_B_ Series 1s at the bottom Choose Close when finished 8 Save your project From the main menu choose Project gt Save OR From the Project toolbar choose Save sj OR Press CTRL S B1 Stage 2 Other activities You can view the stratigraphic pile check the order of series and check the order of formations within series From the main menu choose Geology gt Stratigraphic Pile Visualise 95 Stratigraphic Pile Viewer Reference Top Case B Cover Onlap I cove Blue O fumen Orange E yeis f Case B Series Onlap LowerGrey Plum Poni Green Cece Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 8 Contents Help Top 4 Back gt B1 Stage 3 Enter faults define fault strata relationship define fault fault relationship Parent topic In the geology map there are two faults called ENE and WNW In this stage we Tutorial B1 specify them in the project Getting Started with Case Study B B1 Stage 3 Steps 1 Create an object for each fault From the main menu choose Geology gt Faults Create or Edit 3D GeoModeller displays the Create Edit faults dialog box 2 Create a fault object each of the two faults in the project area ae Se
31. points but you must also enter the correct azimuth and inclination values Our project geologist has made the following strike and dip observations Twelve related to the strata shown in white below Two indicating that the two faults are vertical shown in black with thicker border below The geologist has recorded the data as vector directions 3D GeoModeller also uses this convention The azimuth direction is measured from North as per convention The dip value can be thought of as dip of the strata down from horizontal but equally it can be thought of as defining a facing vector having an angle measured from vertical in the direction of the specified dip direction eee DMA REE Bataan fad n 4309721 ee 52215 J i k 158 19 Peete 61 90 la a rc Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 20 Contents Help Top 4 Back gt B2 Stage 3 Steps 1 From the Structural toolbar choose Create orientation data In the Create geology orientation data dialog box check Automatically update coordinates a Create geology orientation data Geological Formations and Faults ee Observation ID Section Map_DTM aa Provenance Unspecified Coordinates x 0 Y 0 Direction Dip direction 0 Dip 0 Polarity Reverse Overturn E Automatically
32. re edit Automatically update coordinates B Update now 2 From the 2D Viewer toolbar choose Create OR press C 3 From the Points list editor toolbar choose Delete all Points to erase any existing contents of the Points List 4 In Map_ DTM in the 2D Viewer click the one of the points where strike and dip have been recorded For the one shown values are 322 and 15 Observe that the coordinates of the point appear in the Create geology orientation data dialog box Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 21 Contents Help Top 4 Back gt 5 In the Create geology orientation data dialog box For Geology formations and faults select Plum Enter Dip direction 322 e Enter Dip 15 e Choose Apply This point has now been recorded as an orientation observation in section Map_DTM assigned to unit Plum with a specified x y location and specified azimuth and dip values 6 Save your project 7 Repeat steps 3 6 for the rest of the points shown in the picture at the beginning of this stage of the tutorial shown in white in this tutorial but in black in the image that you have imported to the project Each time assign the selected point to the correct geological formation in the stratigraphic pile and enter the required azimuth and dip values Ignore for now the points
33. rend lines 10 Cover TE Blue Show everywhere Series ese B senes Select All TE m va os In the Plot the model dialog box set the parameters e Check Show lines and clear Show fill e Use default values for the other parameters Choose OK Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 27 Contents Help Top 4 Back gt 3D GeoModeller displays the plotted model B3 Stage 3 Discussion and further exploration In the Plot the model dialog box the u point and v point define the degree of fineness of the mesh used for the initial interrogation of the model For this simple model the default values of 50 x 50 are adequate A model with fine detail might require a finer mesh Alternatively for a quick render select a coarser mesh Experiment with the mesh size u v replotting each time Experiment with the layout options From the shortcut right click menu choose Display parameters Turn the various layers of rendered results on and off If one layer appears to be hidden under another turn the display of both off and then turn on the one at the back first e Experiment with re plotting the model using Fill and Trend To erase the display of all model calculated data from the model so that only the original data remains From the main menu choose Model gt Erase
34. rning as shown below Generally you need to right click the Information Bar near the top of the window and choose Allow Blocked Content This permits the browser to load the rest of the VRML data Information Bar Did you notice the Information Bar The Information Bar alerts you when Internet Explorer blocks a pop up window or file download that might not be safe Ifa Web page does not display properly look for the Information Bar near the top of your browser i a a al ve laa pe ba ig gc sae a ec ages To help protect your security Internet Explorer has restricted this file from showing active content that could Allow Blocked Content What s the Risk Cl Do not show this message again Learn about the Information Bar OK 4 Information Bar Help 17 The browser displays the web page with an empty display area 30 VRML of Tutorial Study Microsoft Internet Explorer gj x Ble Edt yew Favortes Joos Hep Ld 7 J x 2 A p Search p Favortes g J ia Sy tolders Address E C GeoModelicr tutorial CaseStudy TutorialhS Completed _ RMI_Site indes html bd Google Search Q Search Australia Z So 183blocked Check 4 Autolink T AutoFill Wa Options A Uta the tatur mari cer the NGE tide to change the unre texture Axis Viewpoints XY Plane axis r Plon Pers YZ Plane axis O NE Plan Pers XZ Plane axis r E Plan Pers Geological units SE Plon Pers Green E
35. te that a completed version of this Tutorial B5 is available in GeoModeller tutorial CaseStudyB TutorialB5 Completed_project T utorialB5 xml Do not overwrite it 2 Select Map_DTM tab in the 2D Viewer Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 35 Contents Help Top lt 4 Back gt B5 Stage 2 Creating the secton and plotting the model in it Contents Help Top We are interested in a diagonal section from the North West corner of Map_DTM B5 Stage 2 Steps 1 2 3 In Map_DTM in the 2D Viewer display the image of geology with cover From the 2D Viewer toolbar choose Create OR press C From the Points list editor toolbar choose Delete all Points to erase any existing contents of the Points List In Map_DTM in the 2D Viewer click the points corresponding to the ends of the diagonal red line in the folowing diagram 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd lt 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 36 Contents Help Top 4 Back gt 5 Create the section Case_B_Sectionl from the points trace Choose menu option Section gt Create a section from its trace OR on the Section toolbar choose Create section from trace OR choose CTRL T Enter the name Case_B Sectionl I Create a Section from its Section Name Cas
36. the shortcut menu choose the image name to show or hide it OR Press PAGEUP or PAGEDOWN to show and END to hide E Explore El CaseStudys TH Dykes Hl Faults Explore O O O O OO jad vaca Map g 3D Geolog M Open 2D Viewer Shading 2 Appearance Reset view i Export Copy Delete Data es Properties 48 Show in 3D Viewer r Hide from 3D Viewer BR Delete Now we can start recording observations of the geology and so begin building the 3D geological model of this project area of sa Map DTM ja amp ol Fa Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Contents Help Top Tutorial case study B Antonio s map 17 lt 4 Back gt B2 Stage 2 Enter geological contact points from map view Contents Help Top The process has two basic steps repeated for each set of data Enter a point or a set of points Assign those points to a specified geological horizon in this project as contact points for the top of a formation Recall that we set up stratigraphic pile for this project with reference to the tops of formations This means for example that if we make a geological observation on the contact at the top of formation Plum we assign it to that formation Plum and not to the overlying formation B2 Stage 2 Steps 1 From the main menu choose Geology gt 2D structural gt Create geology data
37. ts Help Top lt 4 Back gt Tutorial Bi Getting Started with Case Study B Parent topic Tutorial case study B Antonio s map This tutorial is part of Case Study B last revised December 2005 Tutorial B1 Inputs Parent topic Tutorial B1 Getting Started with Case Study B Contents Help Top Geology The geology for this project is available as a geological map in an image file Located in directory GeoModeller tutorial CaseStudyB TutorialB1 Data There are two files available FieldGeology jpg FieldGeologyWithCOVER jpg In this tutorial we use the covered geology Location The tutorial gives details of the extents when required Stratigraphy You need to input the stratigraphy for the project area and also give names to the two faults The tutorial gives details when required 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd q Back gt GeoModeller User Manual Tutorial case study B Antonio s map 3 Contents Help Top q Back gt B1 Stage 1 Starting the project Parent topic B1 Stage 1 Steps Tutorial B1 Getting Started Case Study From the Project toolbar choose New amp 1 From the main menu choose Project gt New OR Select the project directory from the file chooser 2 Inthe Project properties dialog box e Give the project a name CaseStudyB do not use spaces in the name Define the East North and Z geographic extents based on th
38. ts will have something in common with the images provided but there is more work to do We need to specify the faults B2 Stage 3 Discussion Orientation Data in 3D GeoModeller Orientations are essentially facings orthogonal to the geological surface in the direction of stratigraphic younging It is important to record orientations with the correct sense of up if some of the orientation data for a formation are incorrectly assigned an upside down facing then 3D GeoModeller s computation of the potential or surface for that formation could be quite convoluted From a topological viewpoint every surface in 3D GeoModeller has up and down sides Therefore even faults and intrusives must have at least one piece of orientation data to define this direction Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 23 Contents Help Top 4 Back gt B2 Stage 4 Entering fault data In this stage you enter fault contact points and orientation data B2 Stage 4 Steps 1 Create contact data for the two faults Use the same steps as you used for geological contacts in B2 Stage 2 Enter geological contact points from map view In Stage 2 you clicked only one point before assigning it to a formation In this step you click several points and assign them all to a fault Before you start choose Create C and clear t
39. uality Low Medium High These dimensions yield a 50m x 50m x 50m resolution for this project The process takes about three minutes for this simple model on a 2 4 GHz computer with 512 Mb RAM When finished 3D GeoModeller displays the results in the 3D Viewer 3 Save the project Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 38 Contents Help Top 4 Back gt 4 Choose Export gt 3D Model gt Shapes to bring up the export dialog Export Surfaces Type Output File 6 Choose Browse to select an output file name or type one in the edited box provided NOTE Most formats will produce several files one for each unit In such cases a ZIP file will be created using the name provided 7 Once the save is complete you will recieve a message dialog indicating where the products have been saved l Shapes were successfully exported to C geomodellerdocumentation tutorials CaseStudyA TutorialA4 output zip 8 Navigate to the output directory and extract the contents of the ZIP file to ensure the export was successful Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 39 Contents Help Top lt 4 Back gt 9 Export VRML files for interactive 3D displ
40. y that the WNW fault stops on the ENE fault P Help Column size 7 Auto EA Reset paj Save CSV file Choose OK 6 Save your project Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt GeoModeller User Manual Tutorial case study B Antonio s map 10 Contents Help Top 4 Back gt B1 Stage 4 Import geology image Parent topic There are several ways to input geological observations Tutorial B1 Getting Started We shall simulate going into the field to make geological observations by importing a with Case Study geological map with cover There are extensive areas of cover but some bedrock B geology is exposed and able to be mapped After import we shall georegister the image so that it corresponds with the project The image has four registration points for aligning with the project We only need to use three of them ASSMANN pout point X coordinate A COoranate EASi Y coordinate North Top moe A 10000 10 000 E 14 000 E pr T 23 700 N Contents Help Top 2013 BRGM amp Desmond Fitzgerald amp Associates Pty Ltd 4 Back gt Tutorial case study B Antonio s map 11 GeoModeller User Manual q Back gt Contents Help Top B1 Stage 4 Steps 1 Inthe 2D Viewer select Map_DTM From the Map_DTM shortcut menu choose Image manager 3D GeoModeller displays the Image manager wf 4 Map DTM ga Map_DT M
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