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chap five vocab

TermDefinition
lava magma that flows out onto earths surface
igneous rock intrusive or extrusive rock formed from the cooling and crystallization of magma or lava.
partial melting process in which different minerals melt into magma at different temperature changing its compositions
bowens reaction series sequential predictable dual branched pattern in which minerals crystallized from cooling magma
fractional crystallization process in which different minerals crystallize from magma at different temps removing elements from magma
intrusive rock coarse gained igneous rock that is formed when molten rock cools slowly and solidifies inside earths crust
extrusive rock fined gained igneous rock that is formed when molten rocks cools quickly and solidifies on earths surface
basaltic rock rock that is dark colored has lower silica contents and is rich in iron and magnesium contains mostly plagioclase and pyroxene
granitic rock light colored rock that has high silica content and contains quartz and potassium feldspar.
texture the size shape and distribution of the crystals or grains that make up a rock
porphyritic texture rock texture characterized by large well formed crystals
vesicular texture a spongy looking rock lave whose gas bubbles do not escape
pegmatite vein deposits of extremely large grained minerals that can contained rare ores such as lithium and beryllium.
kimberlite rare ultramafic rock that can contain diamond and other minerals formed only under very high pressure
Created by: melissa2014
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