Intro to rocks
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Transcript of Intro to rocks
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ROCKSQuartz
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Granite
Sandstone
Gneiss, Slate
Rock Cycle
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Increasing Si
Increasing Mg, Fe, Ca
Water-Honey-Toothpaste
Silica increases viscosity
Low Si - Med Si – High Si
As magma cools, different crystals beginTo form at different temperatures
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Plutons
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Peninsular Range Batholiths
Extrusive Rocks
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Hawaii, Mid Atlantic Ridge
Mt. Fuji
Long Valley Caldera, CA
Runny, Low Viscosity, honey Intermediate, medium viscosity, toothpaste Stiff, Felsic, high viscosity, clay
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Torrey Pines State Beach
Clastic ChemicalBiological
sandstoneLimestone
coal
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Conglomerate Breccia Sandstone Siltstone Mudstone Shale
Based on grain sizeConglomerate
Breccia
Sandstone
Siltstone
Mudstone Shale
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Shale Slate
Granite Schist
Granite GneissGranite
Shale
Gneiss
Schist
Slate
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Non-Foliated (no layers)
Limestone Marble
Sandstone Quartzite
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Red SandBlack SandGreen SandWhite Sand
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Green Sand Beach, Big Island White Sand Beach, Maui
Red Sand Beach, Maui Black Sand Beach, Maui