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  • Geology of Porphyry Copper Deposits

    A different but closely related group of deposits to Porphyry Copper Deposits are the skarn deposits. Skarns are formed when hot magma intrudes the limestone the fluids from the intrusive alter the limestone to form an exoskarn. The intrusives also simulates the limestone altering its composition and forming and endo skarns.

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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

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  • Porphyry Copper Deposit Model - pubs.usgs.gov

    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.

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  • What Investors Need to Know About Porphyry Copper Deposits ...

    Porphyry 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 may host valuable by-products ...

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  • PORPHYRY DEPOSITS - Earth science

    The major products from porphyry copper deposits are copper and molybdenum or copper and gold. The term porphyry copper now includes engineering as well as geological considerations; It refers to large, relatively low grade, epigenetic, intrusion-related deposits

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  • How to make porphyry copper deposits - ScienceDirect

    Occurrence of porphyry copper deposits (PCDs) through time. All were formed in the magmatic arcs associated with subduction zones, but there is a preference for regions of thick arc crust (>35 km), such as continental arcs and mature island arcs.

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  • Porphyry copper deposits in China Request PDF

    The Pulang porphyry copper deposit recently discovered in northwestern Yunnan province, is located at the south end of the Triassic Yidun island arc. To date, 15 mineralized porphyry deposits have ...

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  • Porphyry copper deposits in China Request PDF

    The Pulang porphyry copper deposit recently discovered in northwestern Yunnan province, is located at the south end of the Triassic Yidun island arc. To date, 15 mineralized porphyry deposits have ...

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  • What Makes for a Copper Porphyry Takeover Target

    Major miners look to copper porphyry deposits for large-tonnage, low-cost operations. We take a look at what makes for a copper porphyry takeover target. Ask any economic geologist the most ...

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  • Copper Basin, Porphyry copper deposit - USGS

    Johnston, W.P., and Lowell, J.D., 1961, Geology and origin of mineralized breccia pipes in Copper Basin, Arizona: Economic Geology, v. 56, p. 916 940.

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  • Gaby, Porphyry copper deposit - USGS

    Sillitoe, R.H., 2000b, Gaby Sur, Chile, in Exploration and discovery of base-metal deposits in the Circum-Pacific region A late 1990s update: Tokyo, Resource Geology Special Issue 21, p. 8 10.

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  • (PDF) Porphyry Copper Deposit Model - ResearchGate

    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 ...

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  • Porphyry Deposits 101 – Doubleview Capital Corp.

    Porphyry copper-gold deposits form in a variety of volcanic environments, most commonly in continental margins and intra-oceanic arcs. These are large scale magmatic-hydrothermal systems associated with a series of porphyritic intrusions, which result in extensive alteration footprints that we map and model to target high grade copper-gold mineralization.

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  • Porphyry Copper Systems* - pyrite.utah.edu

    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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  • Porphyry - an overview ScienceDirect Topics

    The main mineral deposits of Papua New Guinea are porphyry copper–gold deposits, disseminated and vein gold deposits, and alluvial gold. Other less common deposits include lateritic nickel–cobalt ore over ultramafic rocks, minor manganese ore, and the small copper–gold massive sulphide orebodies that have been mined near Port Moresby.

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  • Exploration of Porphyry Copper Deposits

    So how do we explore for Porphyry Copper Deposits which are completely covered by barren younger rocks? Well let’s back up a bit, we know that porphyries form under large subduction related volcanoes and that most of these are located under the ring of fire around the subducting pacific plate another fertile subduction zone occurs in Balkans, Turkey, Iran and Pakistan.

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  • Preliminary Model of Porphyry Copper Deposits

    to many porphyry copper deposits (for example, Bingham, Utah), as well as crosscutting porphyry-style mineralization (for example, Valea Morii, Romania). Primary Commodities Copper is the primary commodity of economic interest in most porphyry copper deposits, although some deposits with low

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  • Porphyry Copper Deposit Density Economic Geology ...

    Deposit density is not related to age or depth of emplacement. Porphyry copper deposit density is inversely related to the exposed area of permissive rock. The linear regression line and confidence limits constructed with the 19 control areas can be used to estimate the number of undiscovered deposits, given the size of a permissive area.

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  • Porphyry Copper Deposits Geology for Investors

    23/7/2013  Most of the world’s copper is extracted from a type of mineral deposit called a “porphyry copper”. If you’ve seen a picture of a great big open-pit mining operation odds are that it was a porphyry copper deposit. Some of the biggest man-made holes in the ground are porphyry copper mines ...

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  • porphyry copper deposit at El Salvador, Chile Economic ...

    The formation of the porphyry copper deposit at El Salvador culminated volcanic activity in the Indio Muerto district. Host rocks for the ore are Cretaceous andesitic flows and sedimentary rocks overlain unconformably by lower Tertiary volcanics.

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  • Porphyry Copper Deposits – geo590

    Porphyry copper deposits are heavily studied and mined due to the abundance of base metals (Cu, Mo, etc.), and significant byproduct metals such as gold and silver. Porphyry deposits account for ~60% of copper production and 95% of molybdenum production globally (Sinclair 2007).

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  • Porphyry copper deposit - chemeurope

    Examples of porphyry molybdenum deposits are the Climax, Urad, and Henderson deposits in central Colorado, and the Questa deposit in northern New Mexico. The US Geological Survey has classed the Chorolque and Catavi tin deposits in Bolivia as porphyry tin deposits. Some porphyry copper deposits in oceanic crust environments, such as those in ...

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  • What is a Porphyry Copper Deposit?

    porphyry copper deposits were the first type of metallic mineral deposit to be exploited by large-scale, bulk tonnage, open pit mining methods. Economies of scale and advances in technology have made it possible to profitably mine these deposits despite their relatively low ore grades.

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  • Development of a Copper Porphyry deposit - YouTube

    31/5/2015  Development of a Copper Porphyry Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the ...

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  • (PDF) Porphyry Copper Systems Daniela Olivares Sedan ...

    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-hosted Au deposits in increasingly

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  • Porphyry copper deposit - Infogalactic: the planetary ...

    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 stages, circulating meteoric fluids may interact with the magmatic ...

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  • 2.2 Porphyry-epithermal mineral system Geoscience Australia

    In the porphyry-epithermal mineral system, pathways for fluids and their contained metals, ligands and sulfur include faults, stratigraphic aquifers and crystallising intrusive bodies. Crystallising intrusions are particularly important pathways for high-temperature, proximal deposits such as porphyry Cu-Au-Mo deposits and Cu-rich skarns.

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