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Ch. 4 Rocks
Terms in this set (15)
A mixture of such minerals, rock fragments, volcanic glass, organic matter, or other natural materials.
A model that illustrates the processes that create and change rocks.
Rock formed when magma is cooled and hardened.
Magma that reaches Earth's surface and flows from volcanoes.
Intrusive igneous rocks
Igneous rocks that form from magma below the surface.
Extrusive igneous rocks
Igneous rocks that form as lava cools on the surface of the Earth.
Basaltic igneous rocks
Igneous rocks that are dense, dark-colored rocks.
Granitic igneous rocks
Igneous rocks that are light-colored rocks of lower density.
Rocks that have changed because of changes in temperature and pressure.
When mineral grains line up in parallel layers.
The mineral grains grow and rearrange, but don't form layers.
Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity.
Rock s that form when sediments are pressed and cemented together, or when minerals form from solutions.
Process that forms sedimentary rocks when layers of sediments are compressed by the weight of the layers above them.
Sedimentary rock-forming process in which sediment grains are held together by natural cements that are produced when water moves through rock and soil.
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