vocab
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Created by:
jasonduffield on March 21, 2011
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12 terms
Terms | Definitions |
|---|---|
 streak | a narrow obtained from scratching a mineral |
| sediment | material that has been deposited from water, wind, or ice |
| sedimentary | type of rock formed by layers of weathered rock particles usually deposited in water |
| cementation | sedimentary rock forming process in which larger sediments are held together by natural cements |
| metamorphic | rock that has undergone chemical or physical changes as a result of extreme heat |
| mineral | substance occuring in nature made up of non-living substances, that have a definite chemical composition |
| igneous | type of rock formed from cooled magma on or inside the earth's crust |
| luster | a shiny or shining apperance |
| weathering | the disintegration and decompostion of rocks and minerals by natural process |
| erosion | the process by which particles of rock are removed from their source, teh removal and transport of rock and soil by the flow of water |
| deposition | the process in which water, ice, wind, and gravity drop newly formed sediments |
| compaction | process that forms sedimentary rocks when layers of small sediments are compressed by the wieght of the layers above them |
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