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Holt Eath Science Ch 6 VOCAB
VOCAB
17
Science
11th Grade
01/30/2013

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Term
Rock Cycle
Definition
the series of processes in which rock forms, changes from one type to another, is destroyed, and forms again by geologicla processess
Term
Bowens reaction series
Definition
the simpified pattern that illustartes the order in which minerals crystallize form cooling magma according to thier chemical and melting point
Term
Igneuos Rock
Definition
rock that forms when magma cools and solidifies
Term
intrusive igneous rock
Definition
roack formed from the cooling and solidification of magma beneath Earth's surface
Term
extrusive
Definition
rock that forms from the cooling and soldification of lava at Earth's surface
Term
felsic
Definition
describes magma or igneous rock that is rich in feldspar and silica and that is generally light in color
Term
mafic
Definition
describes magma or igneous rock that is rich in magnesium and iron and that is generally dark in color
Term
compaction
Definition
the process in which the volume and porosity of a sediment is decreased by the wieght of overlying sediments as a result of burial beneath other sediments
Term
cementation
Definition
the process in which minerals precipitate into pore spaces between sediment grains and bind sediments together to form rock
Term
chemical sedimentary rock
Definition
sedimentary roack that forms when minerals precipitate froma solution or settle from a suspension
Term
organic sedimentary rock
Definition
sedimentary rock that forms from the remains of the plants or animals
Term
classic sedimentary rock
Definition
sedimentary rock that forms when fragments of preexsisting roack that are compacted together
Term
metamorphin
Definition
the process in which one type of rock changes into metamorphic rock because of the chemiacl processes or changes in temperature and pressure
Term
contact metamorphism
Definition
a change in the texture, structure, or chemical composition of a rock due to contact with magma
Term
regional metamorphism
Definition
a change in the texture, structure, or chemical composition of a rock due to changes in temperatureand pressure over a large area, generally as a result of tectonic forces
Term
foliation
Definition
the metamorphic rocj texture in which mineral grains are arranged in planes or brands
Term
nonfoliated
Definition
the metamorphic rock texture in which mineral grains aer not arranged in planes or bands
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