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Chapter 5 Vocab

TermDefinition
lava magma that flows out onto Earth's 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 different temperatures, changing its composition
Bowen's reaction series sequential, predictable, dual-branched pattern in which minerals crystallize from cooling magma
fractional crystallization process in which different minerals crystallize from magma at differents temperatures, removing elements from magma
intrusive rock coarse-grained igneous rock that is formed when molten rock cools slowly and solidifies inside Earth's crust.
extrusive rock fine-grained igneous rock that is formed when molten rock cools quickly and solidifies on earth's 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 surrounded by finer-grained crystals of the same or different mineral
vesicular texture a spongy-looking rock; lava whose gas bubbles do not escape
pegmatite vein deposits of extremely large-grained minerals that can contain rares ores such as lithium and beryllium.
kimberlite rare ultramafic rock that contain diamonds and other minerals formed only under very high pressures.
Created by: cynthiagzz
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