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Copper And Molybdenum Deposits In The United States
Beginning of paper
Copper and molybdenum resources were not recognized as valuable
commodities until economic needs demanded the collection and processing of these
minerals in large amounts. The most expansive deposits of copper and molybdenum
occur in massive low grade ores and are found in intrusive porphyry formations,
although many smaller sized but higher gra ....
Middle of paper
....er ores occurred in Tennessee and the Cordilleran base regions. The Civil
War caused copper demand to increase greatly in order to manufacture cartridges
and canned goods, this resulted in the openings of numerous copper mines of
which more than 90% were in the Lake Superior area giving an important advantage
to the Union armies. Major copper pro.... |
| Word count: 2613 |
Page count: 10 |
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