Rule of Vs: interaction between a planar feature and a 3D object
Summary
This workflow uses Visible Geology to show how tilted/dipping beds will outcrop at the surface depending on the topography. The rule of v's is explored by changing the tilt angle of beds and concave vs. convex topography.
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Learning Goals
Learning objectives are:
- Observe how the topography of a surface influences how planar features outcrop across that surface
- Use geological measurements at the surface to understand layer orientation in 3D
- Use the 'rule of V's' to anticipate where contacts will run across a valley
Key visible geology skills are: 1) build custom topography, 2) adjust tilt angle of layers, and 3) apply decals to show layer orientation.
Context for Use
This ~1 hour workflow is a standalone tool for students to either work through as part of a guided lab exercise that builds on lecture material, or as an independent exercise to consolidate learning. It builds concepts from the ground up so it is appropriate for high school to junior college level students.
Description and Teaching Materials
Visible Geology needs to be available for each student, along with the attached worksheet .pdf. Students work through the worksheet, following instructions and exploring the model as it is developed. Key learnings are highlighted in the worksheet at every step. Questions towards the end of the worksheet interrogate students understanding, before an exercise getting them to apply their new knowledge finishes the worksheet.
Rule of V's (Acrobat (PDF) 1.2MB Mar2 26)
Teaching Notes and Tips
- To save and share their work in Visible Geology, students are encouraged to log in with their Google Account.
Assessment
If students are able to answer the questions and complete the final exercise adequately, then they have met the learning objectives of this workflow.
References and Resources
- For tips, tricks and how-to videos for using Visible Geology, check out the Visible Geology Help & Resources.