porphyry copper deposit

Porphyry Copper Deposit Model - USGS

This report contains a revised descriptive model of porphyry copper deposits (PCDs), the world’s largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver. Despite relatively low grades (average 0.44 percent copper in 2008), PCDs have significant economic and societal impacts ...

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What is a Porphyry Copper Deposit?

Porphyry copper deposits are also important sources for other metals, including molybdenum, gold and silver. Minor amounts of rhenium, tellurium, arsenic, zinc and platinum group elements are also present in elevated concentrations within these systems and are recovered at some mining operations. ...

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Porphyry copper deposits of the world - USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.

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Geology of Porphyry Copper Deposits

Mar 22, 2015  Porphyry copper deposits ppt. 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 Course I discussed how because our current mining ...

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Porphyry copper deposits of the world - USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.

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Preliminary Model of Porphyry Copper Deposits

Copper skarn deposits occur near many porphyry copper host intru- sions that intruded carbonate-bearing units (Einaudi and others, 1981), and skarn mineral zoning patterns may be useful in the targeting of a potentially associated porphyry copper deposit (Meinert and others, 2005).

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Porphyry Deposits: The World’s Largest Source of Copper ...

May 28, 2014  Porphyry copper deposits are generally composed of a “plug-like” igneous intrusion – a large magma body that is emplaced beneath a volcanic system. On average these deposits can have a vertical and horizontal extent of 1-2 km and can range from tens of

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Porphyry copper deposit - Wikipedia

Porphyry copper deposits are copper ore bodies 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 stages, circulating meteoric fluids may interact with the magmatic ...

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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 fraction of 1 percent copper by weight; although they are low-grade, the ...

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How to make porphyry copper deposits - ScienceDirect

Jan 01, 2020  Much of the world's economic copper resources are hosted in porphyry copper deposits (PCDs), shallow level magmatic intrusions associated mostly with thick (> 45 km) magmatic arcs, such as mature island arcs and continental arcs.However, a well-known, but unresolved paradox, is that arc magmas traversing thick crust, particularly in continental arcs, are generally depleted in Cu

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(PDF) The formation of porphyry copper deposits

Nov 05, 2016  Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver used by humans. Porphyry ore typically forms in magmatic arcs above subduction zones. However, generation of ...

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Gold in porphyry copper deposits: its abundance and fate ...

Cu/Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold-rich and gold-poor deposits. Gold is found in porphyry copper deposits in solid solution in Cu–Fe and Cu sulfides and as small grains of native gold, usually along boundaries of bornite.

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Porphyry Copper Systems*

Porphyry Copper Systems* RICHARD H. SILLITOE† 27 West Hill Park, Highgate Village, London N6 6ND, England Abstract Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sediment-

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[PDF] The relation between Cu/Au ratio and formation depth ...

Constraints on gold and copper ore grades in porphyry-style Cu–Au ± Mo deposits are re-examined, with particular emphasis on published fluid pressure and formation depth as indicated by fluid inclusion data and geological reconstruction. Defining an arbitrary subdivision at a molar Cu/Au ratio of 4.0 × 104, copper–gold deposits have a shallower average depth of formation (2.1 km ...

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(PDF) The magmatic to hydrothermal transition: Miocene ...

The porphyry to 2 cm) cut the ore stage mineralisation and have epithermal transition in a magmatic-hydrothermal system: Valea Morii copper-gold deposit, Apuseni Mts, Romania, quartz that hosts coeval melt and vapor inclusions In Proceedings to the 7th Biannual SGA Meeting , Athens, associated with later brine – vapor boiling Greece, August ...

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Porphyry copper deposit prognosis in the middle region of ...

porphyry copper deposit, remote sensing. 1. Introduction Porphyry copper deposits (PDCs) arguably represent the most economically important class of nonferrous metallic mineral resources, as nearly three-quarters of the world’s Cu, half of the world’s Mo, one

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Bingham, Porphyry copper deposit

Albino, G.V., 1995, Porphyry copper deposits of the Great Basin Nevada, Utah, and adjacent California, in Pierce, F.W., and Bolm, J.G., eds, Porphyry copper deposits ...

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World Copper Confirms Two Porphyry Copper Targets at ...

Oct 05, 2021  Surface sampling programme confirms two copper-porphyry targets and one skarn target to the northeast of the main Escalones deposit. The Rio Negro target produced five samples grading over 1% Cu and multiple samples returning over 0.5% Cu. It is considered a priority porphyry copper target for future drill programmes.

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By-products of porphyry copper and molybdenum deposits ...

Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world’s copper and molybdenum, as well as significant amounts of gold and silver. These deposits form from hydrothermal systems that affect 10s to >100 km 3 of the upper crust and result in ...

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Everything You Need to Know About Copper Porphyries ...

Mar 11, 2015  Porphyry deposits are very large, polymetallic systems that typically contain copper along with other important metals. Much of today’s mineral production depends on porphyries: 60% of copper, 95% of molbdenum, and 20% of gold comes from this deposit type.

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Porphyry copper deposit formation by sub-volcanic sulphur ...

Feb 27, 2015  Porphyry copper deposits (PCDs, Fig. 1) have a broadly cylindrical distribution of mineralization (0.5–1 wt% Cu (ref. 4)) at the kilometre scale and are surrounded by

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Porphyry copper deposits - SlideShare

Jul 31, 2018  Porphyry copper deposits Epithermal deposits originate in or nearby porphyritic intrusives which were saturated by water as they intruded in shallow areas of the crust (less than 6 km depth(. The developing hydrothermal systems are characterized by the interaction, to different degrees, of fluids coming directly from the parental intrusive and ...

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Porphyry Deposits PDF Geology Economic Geology

Porphyry Deposits as a Copper and Gold Resource Gold Resources Copper Resources A Geological Cross Section through the Batu Hijau porphyry deposit, Indonesia (920 million tons of ore grading 0. Wt.% cu, 0. G / t au) Supergene Malachite Spatial Distribution of Porphyry Deposits The Origin of Porphyry Cu-Au-Mo Magmas Hydration Melting Porphyry-epithermal-skarn system - overview.

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(PDF) The magmatic to hydrothermal transition: Miocene ...

The porphyry to 2 cm) cut the ore stage mineralisation and have epithermal transition in a magmatic-hydrothermal system: Valea Morii copper-gold deposit, Apuseni Mts, Romania, quartz that hosts coeval melt and vapor inclusions In Proceedings to the 7th Biannual SGA Meeting , Athens, associated with later brine – vapor boiling Greece, August ...

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King Copper AZGS

Porphyry copper deposits commonly yield molybdenum and silver as co-products, were. The intrusive activity responsible for Arizona's porphyry copper deposits occurred about 70 million years ago, in the Earth's crust deep below the ground surface. The rich metal deposits were subsequently exposed millions of years later by faulting and erosion.

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Porphyry Deposits: General characteristics and modeling ...

Porphyry Copper-Gold Deposits . Oyu Tolgoi: 2,467 Mt @ 0.68 wt % Cu, 0.32 g/t Au, (790 t Au) Batu Hijau: 1,644 Mt @ 0.44 wt % Cu, 0.35 g/t Au, (572 t Au) Frieda River: 1,103 Mt @ 0.61 wt % Cu, 0.32 g/t Au, (354 t Au) Porphyry Cu-Mo Deposits . El Teniente: 12,482 Mt @ 0.63 wt % Cu, 0.02 wt % Mo, 0.035 g/t Au, (437 t Au)

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[PDF] The relation between Cu/Au ratio and formation depth ...

Constraints on gold and copper ore grades in porphyry-style Cu–Au ± Mo deposits are re-examined, with particular emphasis on published fluid pressure and formation depth as indicated by fluid inclusion data and geological reconstruction. Defining an arbitrary subdivision at a molar Cu/Au ratio of 4.0 × 104, copper–gold deposits have a shallower average depth of formation (2.1 km ...

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Explainer: Why are so many explorers chasing a porphyry ...

Mar 01, 2020  When it comes to porphyry deposits, size counts. These multigenerational monsters are responsible for ~60 per cent of the world’s copper, most of its molybdenum, and significant amounts of gold and silver. Their easy-mining large volumes make up for the low grades, typically between 0.3 per cent to 1 per cent copper equivalent. But these []

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2.2 Porphyry-epithermal mineral system Geoscience Australia

The main porphyry-epithermal province in Australia is the Siluro-Ordovician Macquarie Arc in New South Wales, which contains major porphyry Cu-Au deposits at Cadia (global resource of 1.31 Gt at 0.31% Cu and 0.74 g/t Au: Cooke et al., 2007) and Northparkes (global resource of 153 Mt at 1.03% Cu and 0.46 g/t Au: Cooke et al., 2007).

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Porphyry Copper - Aurania Resources

Porphyry deposits produce approximately 60% of the world’s copper. Most of these deposits lie in the Pacific Rim, also known as the Ring of Fire, an arc that stretches from Papua New Guinea to the southern tip of Chile. The copper is contained within roughly cylindrical granitic bodies that are remnants of the magma core beneath volcanoes.

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Geological setting for porphyry copper deposits in calc ...

Apr 20, 2016  The Wadi Rofaiyed deposits have many similarities to the worldwide quartz diorite-hosted porphyry copper deposits. It is a part of Katerina Ring Complex, which represents Ediacaran post-collisional magmatic cycle that has taken place during the last geological period of

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Porphyry Copper Deposits - What Investors Need to Know INN

May 04, 2017  Porphyry copper deposits are one of the most important sources of copper and molybdenum, and are also major sources of silver, gold, and tin.In addition, porphyry deposits

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