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Natural_Geochemical_Enrichments_of_Elements_S11

Natural_Geochemical_Enrichments_of_Elements_S11 - NATURAL...

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1 NATURAL GEOCHEMICAL ENRICHMENTS OF ELEMENTS GLY 4241 - Lecture 3 Spring, 2011
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2 Important Low-Abundance Elements Elements used in steel alloys Vanadium, chromium, nickel, niobium Elements used in rechargeable batteries Nickel, cadmium, lithium Jewelery Gold, silver, platinum, palladium Nuclear fuels Uranium, thorium Miscellaneous Copper, used in wiring, plumbing, alloys Mercury, used in electrical switches, pesticides, fluorescent bulbs, etc.
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3 Definition of Ore The naturally occurring material from which a mineral or minerals of economic value can be extracted at a reasonable profit (from the Glossary of Geology, 3 rd edition)
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4 Factors Influencing Cost of Metals Exploration Mining Rights Acquisition Cost of mining, Includes cost of compliance with existing environmental regulations Ore separation and processing Transportation of ore to consumer
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5 Frank Wigglesworth Clarke Early career involved teaching, including a year at Howard University Later, Chief Chemist, USGS
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6 Definitions Clarke = the average abundance of an element in the crust of the earth
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