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CSRH Rock Cycle
Rock cycle, weather, and erosion
| Term | Definition |
|---|---|
| sedimentary rock | rocks formed from particles deposited by water and wind, then compacted and cemented together. |
| sediment | small solid pieces of material that comes from rock or living things |
| erosion | running water or wind carries away rock fragments and sediment |
| deposition | the process by which sediment settles out of the water or wind |
| compaction | the process that presses sediments together |
| cementation | the process in which dissolved minerals crystallize and "glue" particles of sediment together |
| clastic | a sedimentary rock the forms when rock fragments are squeezed together |
| organic | a sedimentary rock the forms when the remains of plants and animals are deposited in layers |
| chemical sedimentary rock | a sedimentary rock the forms when dissolved minerals crystallize |
| intrusive | igneous rocks that cool slowly within the Earth |
| extrusive | igneous rocks that cool quickly at the above the surface |
| igneous rock | any rock that forms from magma or lava |
| metamorphic rock | any rock that has changed form due to heat and pressure |
| foliated | metamorphic rocks that have parallel layers or bands |
| nonfoliated | metamorphic rocks that do not have layers or bands , the mineral grains are arranged randomly. |
| chemical weathering | type of weathering due to a change in the rocks chemistry such as acid rain |
| physical weathering | type of weathering due to abrasion from water, plants or animals, or sand carried by wind, |
| weathering | the breakdown of rock |
| erosion | the movement of particles of rock or sediment by moving water or wind. |
| freeze - thaw cycle | when water gets into cracks in rock, freezes, expands, melts, and then the process repeats. |