Ch.5 Vocab
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Created by:
mccainisamazing on January 15, 2009
Subjects:
science, science vocab, rocks, minerals, rocks and minerals
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22 terms
Terms | Definitions |
|---|---|
granite | generally light- colored rock that has high silica content |
rock-forming mineral | one of the common minerals that make up most of the rocks of Earth's crust |
basalt | dark colored-rock, low silica content |
grains | particles of minerals or other rocks |
texture | look and feel of rock's surface |
igneous rock | forms from cooling of magma or lava |
sedimentary rock | forms when particles of other rocks or the remains of plants and animals are pressed and cemented together |
metamorphic rock | forms when existing rock is changed by heat, pressure, or chemical reactions |
extrusive rock | igneous rock formed from lava that erupted into earth's surface |
intrusive rock | igneous rock that formed when magma hardened beneath earth's surface |
sediment | small, solid pieces of material that come from rocks or living things |
erosion | running water, wind, or ice loosen and carry away fragments of rock |
deposition | process by which sediment settles out of the water or wind carrying it |
compaction | process that presses sediments together |
cementation | process in which dissolved minerals crystallize and glue particles of sediments together |
clastic rock | sedimentary rock that forms when rock fragments are squeezed together |
organic rock | forms where the remains of plants and animals are deposited in thick layers |
chemical rock | forms when minerals that are dissolved in a solution crystallize |
coral reef | structure formed from skeletons |
foliated | mettamorphic rocks that have their grains arranged in parallel layers of bands |
nonfoliated | mineral grains in rocks arranged randomly |
rock cycle | series of proccesses on earth's surface and in the crust and mantle that slowly change rocks from one another |
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