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Rock Unit
Classes of Rock and Rock Cycle
| Term | Definition |
|---|---|
| igneous | forms when magma/lava cools |
| metamorphic | forms when there is a change under heat and pressure |
| sedimentary | form near the surface of the Earth through a variety of processes |
| intrusive | igneous rock that forms inside the Earth |
| extrusive | igneous rock that forms on the surface of the Earth |
| magma | extremely hot fluid within the Earth's crust |
| weathering | the process by which rock is worn down |
| erosion | the process of moving fragments of rock |
| clastic | formation of sedimentary rock through compacting and cementing |
| chemical | formation of sedimentary rock through evaporation |
| organic | formation of sedimentary rock through the remains of living organisms |
| foliated | type of metamorphic rock with parallel layers |