6.6: Geological Activity and Earthquakes- Challenge 1
- Page ID
- 5406
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- 1. ___ is the type of stress that occurs at a transform boundary, which causes earthquakes.
- Shearing
- 2. Why don't rocks deform under confining stress?
- Space is too limited
- 3. Compressional stress ___.
- decreases the space a rock takes up
- 4. Sedimentary rocks contain important information about ___.
- the geological history of an area
- 5. As a rule, ___ rocks form in horizontal layers.
- sedimentary
- 6. A ___ is a three-dimensional syncline.
- basin
- 7. ___, which bend downward and have the youngest rocks in the center, and ___, which bend upward and have the oldest rocks in the center, are often found adjacent to each other.
- Synclines; anticlines
- 8. The Michigan Basin is made by rock bent ___.
- downward
- 9. A fracture with no movement on either side is a ___.
- joint
- 10. The hanging wall drops down relative to the footwall in a ___.
- normal fault
- 11. The Andes Mountains grow as the ___ subducts beneath the South American Plate.
- Nazca Plate
- 12. ___ is a continental volcanic arc.
- The Cascades
- 13. Mountain formation is associated with ___.
- faulting, folding, and plate tectonics