Sources:PowerPoint1, PowerPoint2, Web1, Web2, Web3, Web4

1. Uniformitarianism: processes acting today acted in past.
Original Horizontality: sediments are usually deposited in horizontal layers
Superposition: older layers lie below younger layers
Lateral Continuity: rock layers usually are deposited over wide area.
Law of Cross-cutting Relationships: intruding rock is younger than the rocks intruded.

2. Uniformitarianism: helps us interpret features that were produced long ago.
Original Horizontality: finding folds and tilted rock
Superposition: determining relative age of rock layers
Lateral Continuity: finding faults and erosional features.
Law of Cross-cutting Relationships: determining relative age of intrusions compared to surrounding rock layers

3. Tension, compression, shear (lateral)

4. Normal (tension), Reverse (compression), Strike-Slip (shear/lateral)

5. Anticline (compression), Syncline (compression)

6. see PowerPoint 2

7. Refer to your lab. When you give the steps, be sure to give the force (e.g., compression) and then the geological structure (e.g., anticline) in one step.