Lecture-4-5-Fall-2017.pdf - MAGMATIC SYSTEMS no water just...

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MAGMATIC SYSTEMS – no water, just magma
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MAGMATIC SYSTEMS – no water, just magma liquid magma Initial state
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MAGMATIC SYSTEMS – no water, just magma liquid magma Initial state Final state
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MAGMATIC SYSTEMS – no water, just magma TIME, TIME, TIME liquid magma Pyrrhotite FeS Density 4.6 Chalcopyrite CuFeS 2 Density 4.1 g/cm 3 Melt (liquid) Density 3.0 g/cm 3
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MAGMATIC SYSTEMS – no water, just magma
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0% 100% 200% 300% 400% 500% 600% 1960 1970 1980 1990 2000 2010 Change in Production Since 1960 Nickel Nickel use is growing at about 4% each year while use of nickel-containing stainless steel is growing at about 6%.
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plastic canoe = aluminum, steel m, glass = silicon, sodium, potassium, lead, calcium luge = steel
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ORIGIN OF MINERAL DEPOSITS Physical Sedimentation
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Sutter’s Mill, 1849
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Sutter’s Mill, 1849
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0% 100% 1960 1970 1980 1990 2000 2010 Change in Production since 1960 Gold
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0 20 40 60 80 100 120 140 Billions of Dollars Precious Metals and Gems - Value Gold Silver Gem Diamond PGEs Colored Gems
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~1160 feet straight down
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Goderich, Ontario (other side of Lake Huron) Salt mined from 1,800 below lake level
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