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Chapter 6 Vocab
Vocab
| Term | Definition |
|---|---|
| Sediments | Small pieces of rock that moved and deposited by water, wind, glaciers, and gravity |
| Lithification | The physical and chemical process that transform sediments into sedimentaru rocks. |
| Cementation | When mineral growth glues sediment grains together into solid rock |
| Bedding | The Primary feature of Sedimentary rocks is horizontal layering |
| Graded bedding | Bedding in which the particle sizes become progressively heavier and coarser toward the bottom layers |
| Cross-bedding | Another characteristic feature of sedimentary rocks |
| Clastic sedimentary rocks | Formed from the abundant deposits of loose sediments that accumulate on Earths surfaces |
| clastic | Broken |
| Porosity | The % of open spaces between grains in a rock |
| Evaporites | Result of layers of chemical sedimentary rocks form |
| Nonfoliated | metamorphic rocks are composed mainly of minerals that form with blocky crystals shapes |
| Regional metamorphism | When high tempuature and pressure affect large regions of Earth's crust |
| Contact metamorphism | When molten material such as that in an igneous intrusion, comes in contact with soild rock |
| Hydrothermal metamorphism | When very hot water reacts with rock and alters ts chemical and mineral composition |
| Rock cycle | The continuous changing and remaking of rocks |