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Definition
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Felsic
Light colored
coasrse grained
Intrusive Igneous rock.
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Definition
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felsic
light colored
fine grained
extrusive igneous rock
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Definition
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intermediate
gray to salt and pepper
coarse grained
igneous
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Term
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Definition
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intermediate
gray/ salt pepper
fine grained
intrusive igneous rock
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Term
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Definition
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mafic
dark color
coarse grained
igneous
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Term
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Definition
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mafic
dark colored
fine grained
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clastic
large angular grains in fine matrix, lots of feldspar
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Definition
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clastic
large rounded grains in fine matrix, lots of feldspar
poor sorting
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Term
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Definition
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mostly quarts
round to sub round grains
well sorted
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Term
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Definition
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quartz and feldspar, reddish color, sub round to angular grains, sandy looking, moderately poor sorting
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Term
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Definition
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poorly-moderately poor sorting sub round to angular contains a variety of rock fragments
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Term
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Definition
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quartz, feldspar, rock fragments and clay, angular to sub angular grains, poorly sorted
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Term
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Definition
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mud, clay, silt, well sorted, no grainsize <.06mm, very small.
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Definition
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clean crystaline reacts with HCl
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Term
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Definition
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fossils and fossil imprints in crystalline matrix reacts to HCl
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Definition
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poorly cemented shell fragments reacts to HCl looks like oatmeal/granola
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Definition
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dense microcrystalline quartz mild reaction to HCl
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