porphery copper mines in usa

Porphyry Deposits: The World's Largest Source of Copper

Grasberg is the world's largest gold mine and third largest copper mine. It was originally discovered by geologists looking for the source of the rich alluvial gold deposits in the lowlands of Irian Jaya. Reserves are estimated to include 2.8 billion tonnes of ore with grades of 1.1% copper 1.04 g/t gold 3.87g/t Ag

Part Three Resources and Technology Princeton University

The three main egories of copper deposits are porphyry type deposits, stratabound deposits, and massive sulfide deposits.Porphyry de posits are the most common. They accountfor about 45 percent of the world's total copper reserves, including the largest portion of the ore reserves in the western United States. qThese de

These 10 mines will set the copper price for the next

Collahuasi mine, a coppermolybdenum porphyry deposit, loed 370km north of Escondida, is the second largest producer in our list at 470.4 thousand tonnes (kt) fine copper representing 8% of

Chapter 6 Copper Production Technology Princeton

Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two decades of this century, whenopen pit mining, flo tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. With the exception of leachingsolvent extrac

"Copper Queen Mine" in Mineral, NV, Copper Past Producer

"Copper Queen Mine" is a past producer contact metamorphic deposit deposit in the Intermontane Plateaus of Nevada, The United States. It is a small deposit, loed in the Santa Fe District mining district and is considered to be of worldclass significance. 1 Copper deposits are documented at "Copper Queen Mine."

Porphyry Copper Deposits in the Rockstone Research

The porphyry copper mine Bingham Canyon in Utah, USA. Furthermore, porphyry copper deposits gain an increasing significance in the mining of gold, whereas VMS deposits supply large quantities of zinc and lead on a worldwide basis.

Porphyry copper Revolvy

Jul 06, 2013 · The Toquepala mine is a large porphyry copper mine in the Tacna Province, Tacna Department, Peru . The mine is an openpit mine producing copper, molybdenum, rhenium and silver with minor gold and zinc . The Toquepala mine and the Ilo smelter were opened in 1960 by Southern Peru Copper Corporation, then a subsidiary of ASARCO .

Porphyry copper deposit Revolvy

Porphyry copper deposit Bingham Canyon mine in 2005. The gray rocks visible in the pit are almost all in the primarysulfide ore zone. Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are vertical dikes of porphyritic

Bell Copper Corporation I Copper Exploration and Discovery

A primary focus for Bell Copper is the ongoing exploration and development at the PERSEVERANCE Copper Porphyry Project near Kingman, AZ where we are pursuing the faultedoff top of a major porphyry copper system, the bottom of which is exposed

Lists of copper mines in the United States Wikipedia

Parts of this article (those related to leading mines) need to be updated. Please update this article to reflect recent events or newly available information. The following lists of copper mines in the United States:

U.S. Copper Porphyry Mines Report U.S. EPA Web Server

U.S. Copper Porphyry Mines: Water Quality Report • EARTHWORKS • www. earthworksaction The Bingham Canyon Mine, the largest copper porphyry mine currently operating in the United States, will also generate water pollution in perpetuity from the mine's waste rock piles.

Porphyry copper deposit mineralogy Britannica

Porphyry copper deposit: Porphyry copper deposit, large body of rock, typically a porphyry of granitic to dioritic composition, that has been fractured on a fine scale and through which chalcopyrite and other copper minerals are disseminated. Porphyry copper deposits commonly contain hundreds of millions of metric tons of

USGS: Mineral Resources OnLine Spatial Data: copper

1998 Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States. Estimates of the tonnages and amounts of contained metal in undiscovered deposits, mineral deposit types. Info: Aquatic assessment of the Ely Copper Mine Superfund site, Vershire, Vermont

World's Largest Mine Bingham Canyon Copper YouTube

Oct 25, 2008 · The Bingham Canyon Mine is an openpit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, USA, in the Oquirrh Mountains.

Copper Statistics and Information usgs.gov

Copper is usually found in nature in association with sulfur. Pure copper metal is generally produced from a multistage process, beginning with the mining and concentrating of lowgrade ores containing copper sulfide minerals, and followed by smelting and electrolytic refining to produce a pure copper

Copper Mining in the United States Investing News Network

Copper mining has been a major industry in the United States since the rise of the northern Michigan copper district in the 1840s. In 2009, domestic mine production in the United States was valued

Copper in the USA: US Companies

Copper in the USA: Bright Future Glorious Past US Companies. were purchased by oil companies in the 1970s. A string of unprofitable years in the early 1980s led the oil companies (except one) to divest their copper subsidiaries.

USGS Mineral Resources OnLine Spatial Data

Symbols indiing miningrelated features digitized from historical USGS topographic maps in the conterminous US. Includes prospect pits, mine shafts and adits, quarries, openpit mines, tailings piles and ponds, gravel and borrow pits, and other features. Work is progressing from west to east.

The Kennicott Copper Mine in Bingham, Utah

The mine is an openpit mining operation extracting porphyry copper. Unlike most mining towns founded during the great gold rush, the Kennecott Mine remains open and still operates 365 days a year, seven days a week and 24 hours per day. Kennecott is widelyknown to be the second largest copper producer in the country and provides 25 percent of

Open Pit Mines, Southern Arizona earthobservatory.nasa.gov

Jan 14, 2010 · Copper is a good conductor of electricity and heat, and it is a vital element of virtually all modern electronic devices. Arizona is the United States' largest source of copper, primarily mined from a type of ore body known as porphyry copper deposits. The most common approach to extracting metalbearing ore from a porphyry copper deposit is by openpit mining, although such mines also

Porphyry copper Revolvy

Jul 06, 2013 · The Toquepala mine is a large porphyry copper mine in the Tacna Province, Tacna Department, Peru . The mine is an openpit mine producing copper, molybdenum, rhenium and silver with minor gold and zinc . The Toquepala mine and the Ilo smelter were opened in 1960 by Southern Peru Copper Corporation, then a subsidiary of ASARCO .

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