ESC Chapter 16 p.371-381
Terms
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- A measure of a substance's tendency to remain in a given chemical form rather than reacting spontaneously to become a different chemical substance
- Chemical stability
- The weathering that occurs when the minerals in a rock are chemically altered or dissolved
- Chemical weathering
- The set of processes that loosen soil and rock and move them downhill or downstream, where they are deposited as layers of sediment
- Erosion
- A physical weathering process in which large flat or curved sheets of rock fracture and are detached from an outcrop
- Exfoliation
- A physical weathering process in which the expansion of freezing water in a crack breaks a rock
- Frost Wedging
- The principal iron ore; the most abundant iron oxide at Earth's surface
- Hematite
- The remains and waste products of the many plants, animals and bacteria living in the soil
- Humus
- A crack in a rock along which there has been no appreciable movement
- Joint
- The white to cream-colored clay produced by the weathering of feldspar
- Kaolinite
- All the processes by which masses of rock and soil move downhill under the influence of gravity
- Mass Wasting
- Weathering in which solid rock is fragmented by mechanical processes that do not change its chemical composition
- Physical weathering
- A weathering product composed of fragments of bedrock, clay minerals and organic matter
- Soil