Chapter 7 Flashcards
Weathering
the breaking down and changing of rocks
Erosion
When sediment moves from place to place
Mechanical weathering
weathering that makes rocks smaller
Frost wedging
When water liquifies and solidifies in cracks in rocks
Exfoliation
Rock layers are peeled off one by one
Chemical weathering
Chemical reactions changing the composition of rocks
Hydrolysis
When water reacts with other substances
Oxidation
When oxygen reacts with other substances
Depositon
Sediments are dropped in their new location
Rill erosion
When running water erodes rocks on the side of the slopes in small channels
Gully erosion
Deeper/more severe rill erosion
Soil
Sediments and decaying biomatter over bedrock
Residual soil
Soil still located above the bedrock from which it was formed
Transported soil
Soil that has been removed from the bedrock that it was formed from
Soil profile
Sequence of soil layers