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Swift Ch 3 part 2
Rocks
Question | Answer |
---|---|
Extrusive rock | igneous rock that forms lava on Earth's surface |
Intrusive rock | igneous rock that forms when magna harden beneath Earth's surface |
Sediment | smalll, solid pieces of material that come from rocks or organisms |
Erosion | the process by whic water, ice, wind, or gravity moves weathered rock and soiled |
Deposition | the process by which sediment settles out of the water or wind that is carrying it |
Compaction | the process by which sediments are pressed together under their own weight |
Cementation | the process by which dissolved minerals crystallize and glue particles of sediment together into one mass |
Clastic rock | sedimentarty rock that forms when rock fragments are squeezed together under high pressure |
Organic rock | sedimentary rock that forms from remains of organisms deposited in thick layers |
Chemical rock | sedimentary rock that forms when minerals crystallize from a solution |
Foliated | term used to describe metamorphic rocks that have grains arranged in parallel layers or bands |
Rock cycle | a series of processes on Earth's surface and in the crust and mantle that slowly change rocks from one kind to another |