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Ch.4 Rock Cycle

ROCKS ARE COOL

QuestionAnswer
Rock Cycle The cycle of how rocks are made.
Rock A naturally occurring solid mixture of one or more minerals and organic matter.
Erosion The process by which sediment is removed from it's source.
Deposition The process in which sediment moved by erosion is dropped and comes to rest.
Composition The chemical makeup of a rock.
texture The quality of a rock that is based on the sizes, shapes, and positions of the rock's grains.
Uplift The movement within the Earth that causes rocks inside the Earth to be moved to the Earth's surface.
Dikes Sheetlike intrusions that cut across the previous rock units.
Lava Flow When lava flows down from the volcano on the Earth's surface.
Sills Sheetlike intrusions that are oriented parallel to previous rock units.
Plutons Magma that cools slowly before it gets to the surface, forming millions of mineral crystals.
Magma The hot, fiery liquid inside a volcano.
Mafic Rock Dark colored rocks.
Batholics The largest of all igneous intrusions.
Intrusive igneous rock Rock formed from the cooling and solidification of magma beneath the Earth's surface.
Extrusive igneous rock Rock that forms as a result of volcanic activity at or near the Earth's surface.
Strata Layers of rock.
Stratification The process in which sedimentary rocks are arranged in layers.
Organic Sedimentary rock The remains of once-living plants and animals.
Fossiliferous limestone When animal remains eventually become cemented together.
Ripple marks When sedimentary rocks record the motion of wind and water waves.
Mud cracks When fine-grained sediments at the bottom of a shallow body of water are exposed to the air and dry out.
Foliated The texture of a metamorphic rock in which the mineral grains are arranged in planes or bands.
Nonfoliated The texture of a metamorphic rock in which the mineral grains are not arranged in planes or bands.
Recrystalization During metamorphism when a rock changes in size and composition.
Deformation A change in the shape of rock by force placed on it.
Index mineral Minerals that are used to estimate temperature, depth, and pressure at which a rock undergoes metamorphism.
Contact metamorphsim Metamorphism that occurs near the igneous intrusions.
Regional metamorphism When large pieces of of the Earth's crust collide with each other.
Metamorphism Comes from the Greek words Meta ( Changed ), and Morphos ( Shape ), as in changing the shape of a rock.
Created by: TSAL88
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