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Chapter 4 Vocab
| Term | Definition |
|---|---|
| Rock | A naturally occurring solid mixture of one or more minerals or organic matter. |
| Erosion | The process by which wind, water, ice, or gravity transports soil and sediment from the one location to another. |
| Deposition | The process in which material is laid down. |
| Composition | The chemical makeup of a rock; describes either the minerals or other materials in the rock. |
| Texture | The quality of a rock that is based in the sizes, shapes, and positions of the rock's grains. |
| Strata | Layers of rock. |
| Stratification | The process on which sedimentary rocks are arranged in layers. |
| Foliated | The texture of metamorphic rock in which the mineral grains are arranged in planes or bands. |
| Non-Froliated | The texture of metamorphic rock in which the mineral grains are not arranged in planes or bands. |
| Recrystalization | During metamorphism, the crystals of these minerals may change in size or the mineral may change in composition. |
| Deformation | Is a change in the shape of a rock caused by a force placed on it. |
| Intrusive Igneous | Rock formed from the cooling and solidification of magma beneath the Earth's surface. |
| Extrusive Igneous | Rock that forms as a result of volcanic activity at or near the Earth's surface. |
| Metamorphism | Occurs when temperature and pressure inside the Earth's crust change. |
| Regional Metamorphism | When pressure builds up in rock that is buried deep below other rock formations or when large pieces of the Earth's crust collide with each other. |
| Contact Metamorphism | The effect of heat on rock gradually decreases as the rock's distance from the magma increases and as temperature decreases. |