Science: Rocks and Stuff
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Created by:
koalamaster on November 2, 2011
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16 terms
Terms | Definitions |
|---|---|
 metamorphic rock | rocks formed by change in tempature and pressure or the presence of hot waterly fluids |
| foliated rock | a type of metamorphic rock in which mineral grains flatten and line up in parrallel lines |
| coal | a type of organic sedimentary rock formed by pieces of dead plants |
| nonfoliated rock | a type of metamorphic rock in which mineral grains grow and reanrange but do not form layers |
| chalk | an organic sedimentary rock made of microscopic shells |
| detital rocks | sedimentary rocks such as sandstone that are formed from broken fragments of other rocks |
| chemical rocks | sedimentary rocks such as halite that are formed when minerals come out of solution |
| stacked rocks | sedimentary rocks in which the older rocks, unless disrupted, are on the bottom |
| sedimentary rocks | rocks formed when sediments are pressed and semented together or when minerals form solutions |
| fossil-rich limestone | a type of organic sedimentary rock made of the mineral calcite and formed largely from the shells of ocean animals |
| compaction | porcess in which layer upon layer of sediment builds up and pressure from the upper layers causes the lower layers to stick together and form rock |
| intrusive | the kind of rock that forms when magma cools |
| granitic | the kind of magma that is thick and stiff and contains lots of silica |
| sediment | loose material such as rock fragments, mineral grains, and plant and animal remains |
| igneous | a type of rock that forms below Earth's surface |
| rock | a mixture of minerals, organic matter, volcanic glass, or other materials |
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