porphyry copper deposits

  • Porphyry Copper Systems University of Utah

    Porphyry Copper Systems including porphyry deposits centered on intrusions skarn carbonate-replacement (Sillitoe 1972 Richards

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  • Porphyry Copper Systems1 Economic Geology

    Abstract. Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries including porphyry deposits centered on

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  • Alkalic porphyry Cu-Au deposits a BC speciality

    Alkalic porphyry Cu-Au deposits a BC speciality Thomas Bissig MDRU Acknowledgements Dick Tosdal Dave Cooke Kirstie

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  • PORPHYRY Cu /-Mo /-Au L04

    PORPHYRY Cu /-Mo /-Au L04 COMMENTS Subdivision of porphyry copper deposits can be made on the basis of metal content mainly ratios between Cu Mo and Au.

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  • Porphyry (geology)Wikipedia

    Formation. Porphyry deposits are formed when a column of rising magma is cooled in two stages. In the first the magma is cooled slowly deep in the crust creating

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  • Porphyry copper deposit mineralogy

    is a class known as porphyry copper deposits so called because they are invariably associated with igneous intrusives that are porphyritic (meaning the rock is a

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  • Geology of Porphyry Copper Deposits

    Understanding Geology of Porphyry Copper Deposits and formations using models around the World. Porphyry Copper Deposits are the largest source of Cu/Mo/Au.

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  • AMARC EXPLORATION PROGRESSES GOAL TO

    Morrison and Granisle porphyry copper deposits in the region. Assay results from Amarc s 2017 drilling at DUKE are tabulated below.

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  • Porphyry Copper Deposits Igneous Rock Magma

    Porphyry Copper Deposits. Porphyry copper deposits provide more than 50 of the worlds copper from over 100 producing mines. Their close relatives the porphyry moly

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  • The formation of porphyry copper deposits

    Copper is a moderately incompatible chalcophile element. Its behavior is strongly controlled by sulfides. The speciation of sulfur is controlled by oxygen fugacity.

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  • Porphyry copper deposit mineralogy

    is a class known as porphyry copper deposits so called because they are invariably associated with igneous intrusives that are porphyritic (meaning the rock is a

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  • What Investors Need to Know About Porphyry Copper Deposits

    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.

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  • Magnetic effects of hydrothermal alteration in porphyry

    Magnetic effects of hydrothermal alteration in porphyry copper I review magnetic effects of hydrothermal alteration Giant porphyry copper deposits of

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  • CHAPTER 4 PORPHYRY DEPOSITSBritish

    CHAPTER 4 PORPHYRY DEPOSITS CLASSIFICATION AND GEOLOGICAL CHARACTERISTICS The development of the first porphyry copper and molybdenum deposits in British Columbia in

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  • Porphyry Copper Deposit Density (PDF Download

    Full-text (PDF) Estimating numbers of undiscovered mineral deposits has been a source of unease among economic geologists yet is a fundamental task in considering

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  • PORPHYRY COPPER GOLD MOLYBDENUM

    PORPHYRY COPPER GOLD MOLYBDENUM TUNGSTEN TIN SILVER Table 19-1. Production/reserves of selected Canadain and foreign porphyry deposits. I 19.1 Porphyry copper

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  • PORPHYRY DEPOSITSInca Minerals Limited

    What are porphyry deposits • >500Mt of fine Copper in 63 porphyry deposits • Attracts 15 of the world s exploration commitment Chanape Rio Blanco-

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  • Preliminary Model of Porphyry Copper Deposits

    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

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  • Preliminary Model of Porphyry Copper Deposits

    2 In hypogene parts of porphyry copper deposits the copper occurs predominantly in chalcopyrite other important copper ore minerals may include bornite and enargite.

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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

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  • Porphyry Copper Gold and Molybdenum

    Section 1. includes several of the landmark papers that helped to define and refine the porphyry copper model (e.g. Lowell and Guilbert 1970 Sillitoe 1972 1973

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  • What is a Porphyry Copper Deposit by David F.

    What is a Porphyry Copper Deposit by . porphyry copper deposits were the first type of metallic mineral deposit to be exploited by large-scale

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  • Porphyry copperRevolvy

     · Bingham Canyon mine in 2005. The gray rocks visible in the pit are almost all in the primary-sulfide ore zone. Porphyry copper deposits are copper orebodies that are

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  • USGS Scientific Investigations Report B

    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

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  • PORPHYRY DEPOSITSearth sci

    Energy and MineralsAn overview of porphyry type mineral deposits.

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  • EXPLORATION OF GENETIC LINKS BETWEEN

    exploration of genetic links between breccia pipes and porphyry copper deposits in a laramide hydrothermal system sombrero butte pinal county arizona

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  • Porphyry Mining Geology HQ

    Overview Porphyry deposits are characterized by large-tonnage and low-grades related to porphyritic intrusions. Metals are primarily hosted in stockwork and breccia

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  • PORPHYRY COPPER MINERALISATION OF

    Porphyry copper deposits of western USA are very large low grade deposits dominated by disseminated Cu mineralisation but commonly with appreciable Mo and Au.

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  • What Investors Need to Know About Porphyry Copper Deposits

    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.

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  • The Tops and Bottoms of Porphyry Copper

    TOPS AND BOTTOMS OF PORPHYRY COPPER DEPOSITS 801 This section does not purport however to vindicate every aspect of the proposed model. It is dear that a

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  • Geochronology of the porphyry copper deposits

    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

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  • CHAPTER 4 PORPHYRY DEPOSITSBritish

    CHAPTER 4 PORPHYRY DEPOSITS CLASSIFICATION AND GEOLOGICAL CHARACTERISTICS The development of the first porphyry copper and molybdenum deposits in British Columbia in

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  • Porphyry copper deposits of the worldUSGS

    Information on porphyry copper deposits from around the world with grade and tonnage models a general classification based on geologic setting mineralogy with data

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  • Metallogeny and tectonics of porphyry

    Metallogeny and tectonics of porphyry copper-molybdenum deposits in British columbial JOHN R. GRIFFITHS Department of Geology University of Arkansas Fayetteville

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  • USGS Scientific Investigations Report B

    Contents. Abstract. Summary of Porphyry Copper Deposit Model. A. Introduction. B. Deposit Type and Associated Commodities. C. History of Porphyry Copper Deposits

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