Exogenic Processes Flashcards
Disintegrate or decomposes rocks near Earth’s surface through elements of weather.
Weathering
Rocks broken apart without chemical conposition change.
Physical Weathering
Another term for physical weathering
Mechanical weathering
Caused by successive heating and cooling that causes the expansion and contraction of rocks.
Block disintegration
Stripping of outer layers of rocks due to intense heating
Exfoliation
Alternate freezing and thawing of water inside the joints of the rocks
Frost weathering
Weakening of rocks and the formation of new compounds or new substances caused by chemical reaction
Chemical weathering
Oxygen reacts with the rock and changes its mineral composition
Oxidation
Formation of various types of carbonates in rocks
Carbonation
Absorption of combination of water and a particular substance on the rock
Hydration
Minerals in rocks directly dissolve on water
Solution
Disintegration of rocks due to the living organisms
Biotic weathering
Downslope movement of rock, regolith, and soil because of gravity
Mass wasting
Free fall movement of detached individual pieces of rocks
Fall
Rocks remain fairly coherent and move along well in the well defined surface
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