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Rocks_Leibold

QuestionAnswer
Lava When magma reaches earths surface and flows from volcanoes
Igneous Rock The type of rock that is formed when hot magma cools and hardens.
Granitic A type of Igneous rock that is light colored and has a lower density than basaltic Igneous rocks
Intrusive Igneous rocks that form below the surface are called intrusive igneous rocks
Metamorphic Rocks Rocks that have changed because of changes in temperature and pressure or the presence of hot watery fluids
Foliated A type of texture of which the mineral grains line up in parallel layers
Basaltic A type of igneous rock that is dense and is dark colored
Nonfoliated A type of texture of which the mineral grains grow and rearrange, but they do not form layers
Extrusive A type of igneous rock that is formed as lava cools on earths surface
Cementation occurs when minerals such as quartz, calcite, and hematite are deposited between the places of sediment
Sedimentary Rock A type of rock taht forms when sediments are pressed and cemented together, or when minerals form from solutions
Compaction When small sediments stick together and form solid rock
Sediments Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity
Rock A mixture of minerals such as rock fragments, volcanic glass, organic matter, or other natural materials
Rock Cycle A model that shows how rocks slowly change through time and illustrates the processes that slowly change rocks
Created by: nick31095
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