porphyry copper deposit


Posted on May 25, 2019



Porphyry copper deposit - WikipediaPorphyry 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 intrusive rocks from which this deposit type derives its name. In later.porphyry copper deposit,Geology of Porphyry Copper Deposits - 911 MetallurgistOct 17, 2017 . Here let's understand the geology of porphyries and iron oxide copper gold deposits or IOCG as they are known. These are somewhat the giants of the ore deposits world. As a mining interested learner, the geology of porphyry copper deposits is vital to your education. Now in the first Exploration Geology.


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Porphyry copper deposit | mineralogy | Britannica

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 ore that averages a.

Everything You Need to Know About Copper Porphyries - Infographic

Mar 11, 2015 . In porphyry mineralization, there are many economic minerals that can be found: copper, gold, molybdenum, silver, lead, zinc, tin, and tungsten. There are also associated mineral deposits that can form that depend on the host rock and the distance from the heat source. These include skarn, epithermal,.

Preliminary Model of Porphyry Copper Deposits - USGS .

Preliminary Model of Porphyry Copper. Deposits. By Byron R. Berger, Robert A. Ayuso, Jeffrey C. Wynn, and Robert R. Seal. Open-File Report 2008–1321. U.S. Department of the Interior. U.S. Geological Survey.

What Investors Need to Know About Porphyry Copper Deposits .

May 4, 2017 . Porphyry copper deposits are among the world's most valuable deposits. Here's a brief overview of a few things investors should know about them.

Gold in porphyry copper deposits: its abundance and fate .

Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature epithermal deposits. Whether gold remains in porphyry copper deposits is important both to their economic attractiveness and to the distribution of gold in the upper crust.

Porphyry copper deposit - Wikipedia

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 intrusive rocks from which this deposit type derives its name. In later.

Geology of Porphyry Copper Deposits - 911 Metallurgist

Oct 17, 2017 . Here let's understand the geology of porphyries and iron oxide copper gold deposits or IOCG as they are known. These are somewhat the giants of the ore deposits world. As a mining interested learner, the geology of porphyry copper deposits is vital to your education. Now in the first Exploration Geology.

Everything You Need to Know About Copper Porphyries - Infographic

Mar 11, 2015 . In porphyry mineralization, there are many economic minerals that can be found: copper, gold, molybdenum, silver, lead, zinc, tin, and tungsten. There are also associated mineral deposits that can form that depend on the host rock and the distance from the heat source. These include skarn, epithermal,.

Preliminary Model of Porphyry Copper Deposits - USGS .

Preliminary Model of Porphyry Copper. Deposits. By Byron R. Berger, Robert A. Ayuso, Jeffrey C. Wynn, and Robert R. Seal. Open-File Report 2008–1321. U.S. Department of the Interior. U.S. Geological Survey.

PORPHYRY DEPOSITS - Earth Science Australia

Introduction Distribution and age. Classification What to look for in the field. Structure Alteration Mineralisation Theory Conclusion. specimen of porphyry copper ore.

Hydrothermal alteration in the "porphyry copper" deposits .

Abstract. The hydrothermal alteration, which was accompanied by the introduction of copper sulphides in the disseminated copper deposits, is considerably more complex than is generally recognized.Detailed microscopic study of selected porphyry specimens from the important deposits in the United States, together with a.

geologic and environmental characteristics of porphyry copper . - Epa

AN ASSESSMENT OF POTENTIAL MINING IMPACTS ON. SALMON ECOSYSTEMS OF BRISTOL BAY, ALASKA. VOLUME 3—APPENDICES E-J. Appendix H: Geologic and Environmental Characteristics of. Porphyry Copper Deposits with Emphasis on Potential Future. Development in the Bristol Bay Watershed, Alaska.

Porphyry copper deposit formation by sub-volcanic sulphur dioxide .

Feb 27, 2015 . Porphyry copper deposits—the primary source of the world's copper—are a consequence of the degassing of intrusion complexes in magmatic arcs associated with ancient subduction zones. They are characterized by copper and iron sulphides, commonly found with anhydrite (CaSO4), over scales of.

The formation of porphyry copper deposits (PDF Download Available)

Nov 5, 2016 . Copper is a moderately incompatible chalcophile element. Its behavior is strongly controlled by sulfides. The speciation of sulfur is controlled by oxygen fugacity. Therefore, porphyry Cu deposits are usually oxidized (with oxygen fugacities > ΔFMQ +2) (Mungall 2002; Sun et al. 2015). The problem is that.

Porphyry copper deposits: strike–slip faulting and throttling cupolas .

Nov 23, 2012 . Porphyry copper deposits sometimes form during the solidification of stocks of relatively oxidized magma of intermediate composition. Most workers have assumed ore-forming systems have special chemical attributes, but none has been found that is useful to guide exploration efforts. Stocks can form.

Bristol PCD project

The Bristol PCD project is a collaboration between the University of Bristol and the global mining company, BHP. Our objective is to modify existing porphyry copper deposit (PCD) models in the light of recent advances in geological research through 5 key questions: * What is the relationship between PCDs and volcanoes?

Advances in Geology of the Porphyry Copper Deposits - Amazon

Buy Advances in Geology of the Porphyry Copper Deposits: Southwestern North America on Amazon ✓ FREE SHIPPING on qualified orders.

Bulletin 64 - Porphyry Copper and Molybdenum Deposits, West .

Bulletin 64 describes porphyry copper and molybdenum deposits in west-central British Columbia that are associated with plutons of Late Cretaceous and Tertiary age that intrude Mesozoic volcanic and sedimentary rocks of the Intermontane Tectonic Belt. The porphyry deposits are contained in an area bounded on the.

A new technique for finding copper deposits | Cosmos

Feb 2, 2016 . A new technique could revolutionise the way mining companies identify copper deposits, particularly those located deep underground. The method focuses on the exploration for porphyry-type copper deposits – the most common source of copper ore, representing three quarters of the world's copper,.

Porphyry-Copper Ore Shells Form at Stable Pressure-Temperature .

Porphyry-type ore deposits are major resources of copper and gold, precipitated from fluids expelled by crustal magma chambers. The metals are typically concentrated in confined ore shells within vertically extensive vein networks, formed through hydraulic fracturing of rock by ascending fluids. Numerical modeling shows.

Geochronology of the porphyry copper deposits and related .

K–Ar dating demonstrates that all but eight of 41 dated porphyry copper and related ore deposits of Mexico were emplaced during the Laramide episode of maximum plate convergence. One older deposit is related to the Jurassic volcanic arc of western North America, one is pre-Laramide Cretaceous, four are Oligocene in.

Studies re-examine how major copper deposits form | EARTH .

Jun 21, 2015 . Every year, the world consumes about 20 million tons of copper primarily for construction materials like electrical wiring and water pipes. Most nonrecycled supplies come from porphyry copper deposits (PCDs), which form when hot, metal-bearing fluids percolate up through Earth's crust. But while.

Porphyry copper deposit - BioMineWiki

Oct 9, 2007 . Porphyry copper deposits are one of the important sources of copper in the world: worldwide average size and grade per deposit about 700Mt containing 0.75% Cu;. A porphyry copper deposit is composed of different layers of copper minerals. Minerals close to the surface are more oxidated than those.

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