Science
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Created by:
saluteamigops13 on October 27, 2011
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22 terms
Terms | Definitions |
|---|---|
 rock-forming mineral | the 20 mineras that make up the Earth's crust |
| granite | A light-colored rock that has high silica content |
| basalt | a dark colored rock that is low in silica |
| grains | The particles of minerals or other rocks that give a rock its texture |
| texture | the look and feel of a rock's surface |
| igneous rocks | rocks formed by the cooling of molten rock (either magma or lava) |
| sedimentary rocks | Rocks formed by sediments compacted and pressed together |
| metamorphic rocks | rocks formed from pre-existing rocks as a result of high pressure and/or high temperature |
| extrusive rock | igneous rock that forms from lava on Earth's surface |
| intrusive rock | rock formed from the cooling and solidification of magma beneath the Earth's surface |
| silica | a material formed from oxygen and silicon |
| sediment | small, solid pieces of material that come from rocks or living things |
| erosion | The process by which wind, water, ice, or gravity transports soil and sediment from one location to another |
| deposition | process in which sediment is laid down in new locations |
| compaction | The process by which sediments are pressed together under their own weight. |
| cementation | The process by which dissolved minerals crystalize and glue particles of sediment together into one mass. |
| clastic rocks | a sedimentary rock that forms when rock fragments are squeezed together |
| organic rocks | form where the remains of plants and animals are deposited in thick layers |
| chemical rocks | when minerals that are dissolved in a solution crystallize |
| coral reef | A structure of calcite skeletons built up by coral animals in warm, shallow ocean water. |
| foliated | the texture of metamorphic rock in which the mineral grains are arranged in planes or bands |
| rock cycle | a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another |
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