Assignment: Too Much Stress Exploration Part 1: Under pressure, rocks may bend or break, resulting in some interesting landforms. Some rocks may crumble and fold. Other forces may raise folded rocks into mountains and highlands. Review what you’ve learned about folding and faulting by defining the following terms in thorough, complete sentences using your own words.

1. Fold

Folding is a geology action when sedimentary rock is squeezed from the sides by tectonic forces, it is likely to fracture, or become folded if it is warm enough to behave in a plastic manner.

2. joint

Joint, in geology is a brittle-fracture surface in rocks along which little or no displacement has occurred.

3. fault

A fault is a fracture in rock where there has been movement and displacement.

4. syncline

A trough of stratified rock in which the beds dip toward each other from either side

5. anticline

A fold with strata sloping downward on both sides from a common crest.

Part 2: Use the images on-screen to complete the activity and identify the forces involved in each image of stressed rock.

6. Forces used for folded rock near Palmdale, CA: compressional force

7. Forces used for the strike-slip fault in Iran: Strike slip faults

8. Forces used for the normal fault in British Columbia, Canada: Reverse

Forces used for the reverse fault in Shoshone, CA: compression stress force
9.