How does Lithology affect rates of erosion?

Question 1

What are the 3 main types of rock?

Answer 1

Igneous, Metamorphic, Sedimentary

Question 2

Define igneous

Answer 2

Formed when molten rock from volcanic eruptions cooks into solid rock

Question 3

Define sedimentary rock

Answer 3

Formed when pieces of rock settle from the water on a lake or river bed. They become compressed as more rocks are deposited. The compression squeezes out water, leaving salt crystals that cement the rocks together

Question 4

Define metamorphic rock

Answer 4

Formed from other rocks that are changed because of heat and pressure

Question 5

Define unconsolidated sediment

Answer 5

Materials that has not been compacted and cemented to become sedimentary rock. Loose and easily eroded

Question 6

Define lithology

Answer 6

The physical characteristics of a particular type of rock. This depends on whether it is igneous, metamorphic, sedimentary or unconsolidated material

Question 7

What are the 3 things that influence resistant to erosion?

Answer 7

How reactive minerals are to the chemical weathering.
Whether the rocks are clastic (cemented) or crystalline (interlocking)
The degree to which rocks have cracks, fractures and fissures.