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Rocks & Minerals
Chapter 4.1 Rock: Mineral Mixtures
| Question | Answer |
|---|---|
| Rock | Naturally occurring solid mixtue of one or more minerals or organic matter. |
| Rock Cycle | The series of processes in which a rock forms, changes from one type to another, is destroyed, and forms again by geological processes. |
| Process that shape the Earth | Weathering, Erosion, Deposition, and Heat and Pressure. |
| Weathering | Process in which water, wind, ice and heat break down rocks creating sediment. |
| What determines the texture of a rock? | The amount of heat (temperature),the rate at which the rock cools (cooling rate, and the amount of pressure the rock undergoes. |
| Erosion | Process by which sedminet is removed from its source. |
| Deposition | The process in which the eroded material is laid down. |
| Heat & Pressure | Heat from the Earth and pressure from large layers of rock can change the shape and texture of a rock. |
| Uplift | Movement within the Earth that causes rock inside the Earth to be moved to the Earth's surface. |
| How are rocks classified? | By their composition and texture. |
| Composition | The chemical (amount of minerals and/or organic material) make-up of a rock. |
| Texture | The quality of a rock that is based on the sizes, shapes, and position of the rock's grains. |