porphyry copper deposits ore

  • Porphyry Copper Flashcards | Quizlet

    Start studying Porphyry Copper. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

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  • Porphyry Copper Deposits of the American Cordillera

    figures summarized for 45 porphyry copper deposits in the United States by Titley and Beane (1981) are 15.8 billion tons of copper ore production and reserves with a weighted copper

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  • A new technique for finding copper deposits | Cosmos

    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, as well as a significant ...

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  • Porphyry copper - Revolvy

    Jul 06, 2013· 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 .

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  • Porphyry copper deposits of the world - USGS

    Title: Porphyry copper deposits of the world Abstract: 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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  • Exploration & Mining of Porphyry Deposits Using Thermo ...

    Thermo Scientific portable XRF analyzers can be ... porphyry copper deposit can contain several billion tons of Cu at 0.4-1%, making these deposits the largest source of copper ore. Ideal for open pit mining, they are commonly found close to the surface and can be mined on a large scale at a low

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  • (PDF) The formation of porphyry copper deposits

    The formation of porphyry copper deposits. ... The ore deposits throughout the LYRMB mainly consist of contemporaneous skarn, porphyry and strata-bound polymetallic (Cu, Au, ...

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

    Gold abundances in porphyry copper deposits vary greatly, complicating efforts to define gold-rich porphyry copper deposits. The original definition was based on the Au/Mo ratios of porphyry copper deposits with no reference to their copper content, and resulted in the suggestion that gold-rich deposits were found largely in island arc regions (Kesler, 1973).

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  • Porphyry Copper Deposit Modelhima-u.ac.jp

    Note that many elements in porphyry copper deposits are in gangue or waste rock and are not recovered during ore processing. Also shown are estimates (thick colored orthogonal lines) for the masses of ore and total rock moved (ore + strip) during annual mining of porphyry copper deposits and for the annual masses of arc volcanism and total arc ...

    Lateral and Vertical Alteration-Mineralization Zoning in ...

    the copper ore zone. Over the same interval, sulfide species vary from chalcopyrite- ... porphyry copper deposits ranges up to 0.8% Cu and 0.02% Mo, and porphyry deposits in which molyb- denite is the chief economic mineral have grades ranging up to 0.6% Mo and 0.05% Cu. All por-

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  • Copper - British Geological Survey

    Porphyry copper deposits are currently the world''s main source of copper (50–60% of world production), molybdenum (99% of world production) and rhenium 15 .

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  • Porphyry-Epithermal Transition: Maricunga Belt, Northern Chile

    phyry copper deposits worldwide, whereas Verde at Refugio is a true porphyry gold deposit. Potassic alteration zones and A-veinlets are strongly developed at Cerro Casale, whereas they are .

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  • A genetic model of the Elatsite porphyry copper deposit ...

    Over 150 ore deposits, ore occurrences and mineral manifestations have been established in the Panagyurishte ore district. It is characterized mainly by porphyry copper and massive sulfide copper deposits. Small gold-ore, gold-polymetallic, barite, lead-zinc and manganese deposits and ore occurrences are also encountered.

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  • Footprints of porphyry Cu deposits: Vectors to the ...

    porphyry copper deposits, despite different tectonic settings, magma compositions, ages, and ore mineral suites produce a relatively consistent mineralogic and geochemical zonation. (Note that

    Porphyry Copper Deposits

    Cumulative sulphide enrichment of copper deposits, as exemplified by the major chalcocite blankets in the porphyry copper deposits of northern Chile and southern Peru, is optimized during tectonic uplift under semi-arid climatic conditions (e.g. Alpers and Brimhall, 1988).

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  • Sericitic and Advanced Argillic Mineral Assemblages and ...

    The Resolution deposit is a giant, deep, high-grade deposit in the Laramide porphyry copper province of Arizona that is currently being developed. This study focuses on the features ... also from other types of hydrothermal ore deposits, occurs commonly in three related types of . 6 magmatic-hydrothermal ore deposits, porphyry deposits, base ...

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  • Porphyry Publications | PubFacts

    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.

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  • King Copper | AZGS

    A third copper source includes copper of breccia pipes of the Breccia Pipe Province of northern Arizona. Porphyry Copper Deposits. Most of the copper mined in Arizona comes from porphyry copper deposits. These are copper ore deposits associated with intrusive igneous rocks similar to granite.

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  • EPITHERMAL GOLD-SILVER and PORPHYRY COPPER-GOLD .

    Corbett Short Course Manual SUMMARY This short course manual considers field aspects of epithermal and porphyry ore deposits as an aid to mineral exploration.

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  • An introduction to potassic alteration in porphyry copper ...

    An introduction to potassic alteration in porphyry copper deposits. [P J Pollard] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library. Create ... # Copper ores--Australia--Queensland schema: ...

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  • Porphyry Copper Systems* - University of Utah

    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 peripheral locations; and superjacent high- and intermediate-sulfidation epi-thermal deposits.

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  • Gold Distribution in Porphyry Copper Deposits of Kerman ...

    Gold Distribution in Porphyry Copper Deposits of Kerman Region, Southeastern Iran 249 Table 1. The summary of location, reserve, grade and size of some porphyry copper deposits in Kerman region Ore deposit Geographic location Reserves and grades Ore deposit size References Sar Cheshmeh Pariz area 29°56 N 55°52 E

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  • BUTTE-A WORLD CLASS ORE DEPOSIT - OT Mining

    complex, haloing the early porphyry style mineralization, all hornblende laths, typical of the unaltered host rock, have been altered to a mossy, fine grained, biotite.

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  • A Plate Tectonic Model for the Origin of Porphyry Copper ...

    space-time distribution of porphyry copper and porphyry molybdenum deposits. Porphyry ore deposits, occurring in the western Americas, southwest Pacific and Alpide orogenic belts, are thought to constitute a normal facet of calc-alkaline magma-

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  • PORPHYRY COPPER MINERALISATION OF WESTERN USA

    Geology and ore deposits of the Globe - Miami district, Arizona. United States Geological Survey Professional Paper 342 . White, A.J.R., Granitic Rocks Associated with Porphyry Cu Deposits, USA.

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  • Geology of the Caspiche Porphyry Gold-Copper Deposit ...

    2. Location of the Caspiche porphyry gold-copper deposit in the Maricunga belt, showing the two ages of mineralized volcanic rocks and the main porphyry and epithermal deposits. The underlined deposits accompa-nied the younger volcanism. Compiled from Kay et al. (1994).

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  • U.S. Copper Porphyry Mines Report

    Copper porphyry is a form of copper deposit that is often characterized as low-grade, typically with 0.4% and 1.0% concentration of copper, and containing other minerals such as gold, molybdenum, and other trace elements in the ore body. Copper porphyry deposits are almost always mined in industrial-scale open pit operations.

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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 .

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  • Porphyry copper deposits of the world: database, maps, and ...

    The foundation of mineral deposit models is information about known deposits—the purpose of this publication is to make this kind of information available in digital form for a group of porphyry copper deposits. This publication contains a computer file of information on porphyry copper deposits around the .

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  • Porphyry copper deposits: Strike-slip faulting and ...

    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.

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  • Thomson Resources - Porphyry Copper Gold Deposit Model

    Porphyry Copper Gold Deposit Model Porphyry deposits are the world''s most important source of Cu and Mo, and are major sources of Au, Ag, and Sn. They account for about 50 to 60% of world Cu production and more than 95% of world Mo production.

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  • These Are The Bells That Should Be Ringing When You Hear ...

    Porphyry deposits play a major role in mining production. These deposits contribute to approximately 60% of mined copper. The 10 largest deposits produced 25% of the global copper production.

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