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Ch. 4 Vocabulary . Composition. the chemical makeup of a rock. Rock. naturally occurring solid mixture of one or more minerals or organic matter. Texture. the quality of a rock that is based on the size, shape, and positions of the rock’s grains. Rock cycle.
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Composition the chemical makeup of a rock
Rock naturally occurring solid mixture of one or more minerals or organic matter
Texture the quality of a rock that is based on the size, shape, and positions of the rock’s grains
Rock cycle series of processes in which a rock forms, changes from one type to another, is destroyed, and forms again by geological processes
Uplift Movement within the earth that causes rocks to be moved to the surface
Extrusive igneous rock rock that formed as the result of volcanic activity at or near the Earth’s surface
Mafic Rocks Dark-colored rocks that contain calcium, iron, and magnesium
Intrusive igneous rock rock that formed from the cooling of magma beneath the Earth’s surface
Felsic Rocks Light-colored rocks that contain aluminum, potassium, silicon, and sodium
Chemical Rocks Sedimentary rocks that are formed when minerals crystallize out of a solution, such as salt water
Sediment Rock particles that settle in a liquid
Strata rock layers
Stratification process in which sedimentary rocks are arranged in layers
Clastic Rocks Sedimentary rocks that are made up of clasts that are cemented together
Organic Rocks Sedimentary rocks that are formed from the remains of once living plants and animals
Index mineral The metamorphic minerals formed only at specific temperatures and pressures
Foliated texture of metamorphic rock in which the material grains are arranged in planes of bands
Non-foliated texture of metamorphic rock in which the mineral grains are not arranged in planes or bands
Metamorphism Process in which a rock’s structure, texture, or composition is changed
Erosion process by which wind, water, ice, or gravity transports soil and sediment from one location to another
Deposition the process in which material is laid down