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6.3 flash cards
| Term | Definition |
|---|---|
| metamorphism | to change |
| Solid state alterations | the minerals in a rock that change into new minerals that are stable under the new temperature |
| Foliated rocks | Layers and bands of minerals |
| non-foliated rocks | composed mainly of minerals that form with blocky crystal change |
| regional metamorphism | When high temperature 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 solid rock, a local effect |
| hydrothermal metamorphism | When very hot water reacts with rock and alters its chemical and mineral composition. |
| rock cycle | Metamorphic rocks form when other rocks change. |