Midterm 2 Review Flashcards
1
Q
What is weathering?
A
The physical breakdown and chemical alteration of rocks at the earths surface
2
Q
What is erosion?
A
Physical weathering by water wind ice or gravity
3
Q
What is lithification?
A
Compaction and cementation of sediment
4
Q
What are some varieties of sandstone?
A
Quartz, arkosic, graywacke
5
Q
How are chemical rocks formed?
A
Precipitate from water
6
Q
How are metamorphic rocks made?
A
Heat and pressure
