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Originally developed as an underground mine in 1907, the
Sierrita open pit has been in operation since 1959 and is a copper and molybdenum mining complex, operating on a porphyry copper deposit with oxide, secondary sulfide, and primary sulfide mineralization. The mine produces copper and molybdenum
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327:"Annual Report pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 for the Fiscal Year ended December 31, 2018"
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Mines on the east flank of the
Sierrita Mountains, Arizona. Sierrita mine is at the bottom right of the image (north to the left).
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286:) from 1986 to 1999. Sierrita was operated by Phelps Dodge from 1999 until 2007 when it was acquired by
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Minerals
Yearbook, 2006, V. 2, Area Reports, Domestic; U. S. Department of the Interior, p. 5-2
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acquired a controlling interest in Duval in 1968. Sierrita was operated by Cyprus Mines (later
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of 1,378 million tonnes of mineralized material at 0.17% copper and 0.02% molybdenum.
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concentrate as well as SX/EW copper cathode from a ROM oxide-leaching system.
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of 3,369 million tonnes of ore grading 0.23% copper and 0.02%
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http://www.savethesantacruzaquifer.info/history%20in%20gv.htm
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and in the world. In 2018, the deposit had estimated
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332:. Freeport-McMoRan Inc. 15 February 2019
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27:Copper mine in Pima County, Arizona
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255:. The mine is located in southern
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593:Copper mines in Arizona
574:Freeport-McMoRan Center
603:Freeport-McMoRan mines
125:31.87389°N 111.13389°W
210:Freeport-McMoRan Inc.
284:Cyprus Amax Minerals
130:31.87389; -111.13389
88:Pima County, Arizona
445:President & CEO
226:Year of acquisition
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78:Location in Arizona
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245:Sierrita Mountains
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18:Sierrita Mine
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334:. Retrieved
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265:Green Valley
263:and west of
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540:Cerro Verde
257:Pima County
241:copper mine
239:is a large
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116:111°08′02″W
104:Coordinates
587:Categories
310:References
300:molybdenum
185:Discovered
164:Production
154:molybdenum
141:Production
113:31°52′26″N
549:Indonesia
514:Henderson
269:Sahuarita
556:Grasberg
494:Sierrita
479:Morenci
429:Chairman
336:29 April
304:resource
280:Pennzoil
146:Products
48:Location
535:El Abra
489:Safford
249:Arizona
220:fcx.com
216:Website
206:Company
180:History
158:rhenium
94:Country
519:Climax
509:Tyrone
484:Bagdad
422:People
261:Tucson
193:Opened
150:Copper
504:Chino
499:Miami
465:Mines
330:(PDF)
201:Owner
338:2019
235:The
229:2007
196:1907
188:1895
175:2018
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
