Quiz 7

Quiz 7 - Lecture 11 Weathering and mass wasting 1 What is...

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Lecture 11 - Weathering and mass wasting 1. What is weathering? a. Rocks are broken down. 2. What is mass movement (wasting)? a. Gravity moves debris. 3. What is erosion? a. Weathered debris is removed 4. What are the five gradational or degradation agents? a. Running water b. Glaciers c. Wind d. Coastal waves e. Chemical solution 5. What are the seven factors that influence weathering? a. Rock Type b. Terrain c. Climate d. Temperature e. Availability of water f. Living organisms g. Time 6. What are the three types of weathering? a. Mechanical b. Chemical c. Biological 7. What is physical weathering? a. Rocks mechanically broken apart & form smaller fragments 8. What is unloading? a. removal of overlaying weight leads to rock expansion & breakage. 9. What is thermal expansion? a. Minerals in rock expand & contract at different rates from temperature change. 10. What is frost wedging? a. Water freezes in spaces and expands. 11. What is talus? a. When frost wedging breaks up rock into angular pieces. 12. Which physical weathering is the most influential in Michigan? a. Frost Wedging 13. What is salt wedging? a. Salt crystals grow in rock spaces, then breaks up rock grains 14. What is hydration? a. Mineral sin rock cracks swell and shrink with addition/removal of water. 15. What is expansive soil? a. Quick clays- soils that expand when water is added to them. 16. What is chemical weathering? a. Minerals are chemically altered 17. What is oxidation?
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