107-graham – Flashcards

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Mineral matter
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derived from rock material
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organic matter
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biological in origin, living or dead
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oxidation
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o2 in soil or groundwater reacts minerals
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igneous rocks
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formed by magma cooling into a solid state
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felsic
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contains feldspar and quartz, light in color, lower in density
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mafic
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contains iron and magnesium, dark, dense
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igneous- Quartz
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felsic, silicone dioxide, resists chemical breakdown
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igneous- olivine
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mafic, magnesium iron silicate, metamorhpic
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igneous- basalt
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mafic(extrusive), weather fast, host to gold copper and sulfide
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Sedimentary Rocks
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formed from mineral particles of other rocks and organic matter
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sedimentary- shale
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clastic clay sedimentbreaks easily into flakes
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sedimentary- coal
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organic, mineral fuel
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metamorphic rocks
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igneous or sedimentary rocks formed by high pressure or heat
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