science vocab
Terms
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- felsic
- describes magma or igneous rock that is rich in feldspars and silica that is genraly light in color.
- chemical sedimentary rock
- sedimentary rock that forms when minerals precipitate from a solution or settle from a suspension.
- regional metamorphism
- a change in texture, struture, or chemical composition of a rock due to changes in tempiture and pressure over a large area.
- contact metamorphism
- a change in the texture, strucure, or chemical composition of a rock due to contact with magma.
- foliation
- the metamorphic rock texture in which mineral grains are arranged in planes or bands.
- intrusive igneous rock
- rock formed from the cooling and solidification of magma beneath eath's surface.
- bowen's reaction series
- the simplified pattern that illustrates the order in which minerals crystallize from cooling magma according to their chemical composition and melting point.
- cementation
- the process in which minerals precipitate into pore spaces between sediment grains and bind sediments together to form rock.
- rock cycle
- the series of processes in which rock forms, changes from one type to another, is destroyed, and forms again by geological processes.
- cstic sedementary rock
- sedimentary rock that forms when fragments of preexisting rocks are compacted or cemented together.
- igneous rock
- rock that forms when magma cools and solidifies.
- metamorphism
- the process in which one type of rock changes into metamorphic rock because of chamical processes or changes in temperature and pressure.
- extrusive igneous rock
- rock that forms from the coolinf and solidification of lava at earth's surface.
- organic sedimentary rock
- sedimenary rock that forms from the remains of plants or animals.
- mafic
- describes magma or igneous rock that is rich in magneisium and iron and that is genraly dark in color.
- compactoin
- the process in which the volume and porosity of a sediment is decreased by the weight of overlying sediments as a result of burail beneath other sedements.
- non foliated
- the metamorphic rock texture in which mineral grains are not arranged in planes or bands.