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chapter 5 KS
Term | Definition |
---|---|
Sediments | small pieces of rock that are moved and deposited by water, wind, glaciers, and gravity. |
Lithification | the physical and chemical processes that transform sediments into sedimentary rocks. |
Cementation | Occurs when mineral growth glues sediment grains together into solid rock |
Bedding | horizontal layering of sedimentary rocks |
graded bedding | larger rocks toward the bottom layers |
Cross-bedding | inclines layers of sediment and are deposited across a horizontal surface |
Clastic sedimentary rocks | formed from the abundant deposits of loose sediments that accumulate earths surface |
Clastic | comes from the Greek word klastos, meaning broken. |
porosity | the percentage of open spaces between grains in a rock |
evaporites |