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13 Cards in this Set

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rock:
a consolidated mixture of minerals.
igneous rock:
a rock formed by the crystallization of molten magma.
Sedimentary rock:
rock formed from the weathered products of preexisting rocks that have been transported , deposited, compacted, and cemented.
Metamorphic rock:
rock formed by the alteration of preexisting rock deep within earth ( but still in the solid state ) and heat, pressure, and/or chemically active fluids.
Rock cycle:
a model that illustrates the origin of the three basic rock types ad he interrelatedness of Earth materials and processes.
Magma:
A body of molten rock found at depth, including any dissolved gases and crystals.
Lava:
Magma that reaches Earth's surface
Extrusive igneous rock"
igneous rock that has formed on Earth's surface.
Erosion:
The incorporation and transportation of material by a mobile agent, such as water, wind, or ice.
Deposition:
the process by which an agent of erosion loses energy and drops the sediment it is carrying; also the process by which water vapor is changed directly to a solid without passing through the liquid state
Compaction:
process y which sediments are squeezed together by the weight of overlaying materials driving out water.
Cementation:
Solidification of sediments by the deposition of dissolved minerals in the tiny spaces between the sedimentary particles.
Contact metamorphism:
changes in rock caused by the heat from a nearby magma body.