The YouTube playlists have proven to be somewhat cumbersome, so we have created a hyper-linked master index that makes it easier to find content. Check it out …
RockWare YouTube Video Index URL: http://www.rockware.com/rockworks/revisions/rockware_videos.htm
Here are some suggestions for possible workflows in applying faults to surfaces in RockWorks. These instructions assume you don’t have the coordinates for your faults already defined in an external spreadsheet or in the RockWorks project database; you can draw the fault lines on a map and then use them to fault a surface.
1. Create your contour map in RockWorks without faulting turned on.
- Use the Utilities Map | Grid-Based Map if your XYZ data is entered into the Utilities datasheet.
- Use any of the Borehole Manager contour mapping options (Map | Borehole Locations for ground surface contours, Stratigraphy | Structural Elevations for stratigraphic structure maps, etc.) if your data is entered into the borehole database.
2. In the displayed map, use the Draw | Line Types | Polyline to draw a fault polyline on your map. Double-click to terminate the polyline. You can repeat this if you have multiple faults.
3. Choose the arrow-shaped Edit tool from the RockPlot2D toolbar, and click on the polyline you drew, to select it. (If selected, you’ll see square icons on the vertices.) If you have multiple polylines drawn, hold down the Shift key on your keyboard to click on the next polyline to select it as well. Continue in this manner for as many polylines as you drew so that all are selected.
4. Right-click on any of the selected polylines in the map window and choose Save to Faults Table.
Enter a name to assign to the Faults Table and click OK. This will be saved to the project database.
5. Return to the options along the left side of the map window, and click on the Gridding Options button. Here, turn on the Faulting option (which is available under Inverse-Distance). Enter the “distance multiplier” (usually 10) and browse for the name of the Fault Table that you just created.
Click OK to close this window. Click on the Grid Name prompt and enter a new name for the faulted grid model (such as “Potosi_faulted.grd”).
6. Click Process to recreate the grid model and map, now applying faulting.
Here are three-dimensional views of these surfaces:
RockWorks applies faulting by creating an interpolation barrier on either side of the polyline(s) – as it’s interpolating a grid node, any control points on the other side of the fault are now considered to be 10 times further away than they actually are, thus having no influence on that node.
We used RockWorks15 and Google Earth (TM) to create a map of all of the 5+ magnitude earthquakes across the world in January 2012. You can visit our RockWorks data page to download the Google Earth KMZ file and the RockWorks data file:
In this space we’ll be posting occasional user tips, news, and information relating to RockWare, Inc., the Earth Science Software Company in Golden, Colorado, USA. We welcome your comments and invite you to stay tuned.
We hope you will find this new resource useful. Thank you for your interest in the Rockware, Inc. Blog.
The RockWare Team