Material on Exam III comes from:

Part V: METAMORPHIC ROCKS AND METAMORPHISM (Chp. 7).

A. Metamorphism.

B. Type of metamorphic rock depends on:

1. parent (protolith) and
2. amount of heat and pressure.

C. Metamorphic rocks.

1. Non-foliated.
2. Foliated.

D. Metamorphism.

1. Contact.
2. Regional.

Part VI: RELATIVE AND ABSOLUTE DATING, AND INTERPRETING GEOLOGIC HISTORIES (Chp. 8).

A. Relative Dating.

1. Law of Superposition.
2. Cross-cutting relationships.

B. Interpreting Geologic Histories.

1. Relative dating methods.
2. Use examples of processes and relationships in the modern world: Uniformitarianism (present is the key to understanding the past).

C. Geologic Time.

1. Early beliefs
2. First scientific determinations.
3. Radioactive age determinations.

Radioactive elements (isotopes), daughter elements, half lives.

4. Geologic Time.

• Major events in Earth history.

5. How is time recorded in sediments and sedimentary rocks?

6. Unconformities.

Disconformity, Angular unconformity, and Nonconformity

Part VII: EARTH SURFACE PROCESSES.

A. Mass Wasting (chapter 9 in textbook):

1. Causes.
2. Types of Events: Landslides Vs Flows.
   
   
   • Creep
   • Avalanches and landslides

B. Hydrologic Cycle (chapter 10 in textbook):

1. Processes
2. Relative size of reservoirs

C. Streams (chapter 10 in textbook):

1. Source (headwaters) Vs mouth.
2. Alluvial fans
3. Braided Vs Meandering streams:
   • flow characteristics
   • gradient
   • velocity
   • discharge
   • turbulent nature of flow
   • Competency:
     
   • Transportation Mechanisms:
     • dissolved load
     • suspended load
     • bed load
       
       
4. Types of streams
5. Floods:
   • processes
   • urbanization
   • predictions
     
     
6. Drainage basins.

D. Groundwater (chapter 11 in textbook):

1. Terms/definitions
2. How does it flow?
3. Aquifers/Aquitards
4. Groundwater flow and contamination
5. Caves