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Es Vocab Ch5

TermDefinition
Lava Magma that flows out onto earths surface.
Igneous Rock Form when lava or magma cools and minerals crystallize.
Partial Melting The process whereby some minerals melt at relatively low temperatures while other minerals remain solid.
Bowens Reaction Series That as magma cools and crystallizes, minerals form in predictable patterns in a process
Fractional Crystallization Is similar to partial melting in that the composition of magma can change it.
Intrusive rock When magma cools and crystallizes below earths surface.
Extrusive Rock Magma that cools and crystallizes on earths surface.
Basaltic Rock Are dark-colored, have lower silica contents, and contain mostly plagioclase and pyroxene.
Granitic Rock Are light-colored, have high silica contents, and contain mostly quartz, potassium feldspar, and plagioclase feldspar.
Texture Refers to the size, shape, and distribution of the crystals or grains that make up a rock.
Porphyritic Texture Characterized by large, well-formed crystals surrounded by finer-grained crystals of the same mineral or different minerals.
Vesicular Texture This is a spongy appearance.
Pegmatite Veins of extremely large-grained minerals.
Kimberlite A diamond that is valuable and rare.
Created by: Alayna Long
Popular Earth Science sets

 

 



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