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Porphyry copper systems

  • Porphyry Copper Systems1 | Economic Geology

    Jan 01, 2010 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 epithermal deposits

  • Porphyry Copper Systems* - University of Utah

    PORPHYRYCu systems are defined as large volumes (10− 100 km3) of hydrothermally altered rock centered on porphyry Cu stocks that may also contain skarn, carbonate-replacement, sediment-hosted, and high- and intermediate-sulfidation epi

  • [PDF] Porphyry Copper Systems - Semantic Scholar

    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 epithermal deposits

  • (PDF) Porphyry Copper Systems* Introduction

    porphyry cu systems were generated world- km3) of hydrothermally altered rock centered on porphyry cu wide since the archean, although meso-cenozoic examples are most abundantly preserved (e.g., singer et al., 2008; fig. stocks that may also contain skarn, carbonate-replacement, 1), probably because younger arc terranes are normally the

  • Porphyry copper systems, zones of oxidation and

    Porphyry copper systems, zones of oxidation and secondary enrichment. Summary after D. Briggs, D. Sillitoe, M. Barton, et al. Jan 2022. Introduction. •Mineralization in porphyry systems is usually produced by hydrothermal solutions ascending from cooling subvolcanic intrusives (generalized model in slide 3, after R. Sillitoe, 2010) •While cooling intrusive rocks crackle

  • What is a Porphyry Copper Deposit?

    Porphyry copper deposits are very large mineralized systems that are typically formed by relatively small intrusions (stocks), which are several thousand feet in diameter. These small intrusions are the solidified remains of a magma chamber from which the

  • Porphyry Copper Systems | Request PDF

    Porphyry Cu systems are initiated by injection of oxidized magma saturated with S- and metal-rich, aqueous fluids from cupolas on the tops of the subjacent parental plutons

  • The porphyry copper system: hydrothermal alteration

    The porphyry copper system: hydrothermal alteration Sillitoe (2010) … includes aluminosilicates (kaolinite, dickite, halloysite, pyrophyllite), plus alunite, and diaspore, andalusite, zunyite, and topaz” Advanced argillic = advanced hydrolytic alteration Hemley & Jones, 1964; Meyer & Hemley, 1967 Hedenquistet al. 1996 Al +3 Si +4 SO 4 K+

  • New Porphyry Copper System at Bushranger Project

    new copper mineralised porphyry system on the Bushranger copper-gold exploration project. The discovery has been made by drilling an Induced Polarisation ( IP ) geophysical anomaly undertaken as part of the ongoing Phase 2 diamond drilling programme. Highlights

  • Porphyry copper systems 2013 - SlideShare

    Jul 25, 2014 Porphyry copper systems 2013 1. B.DELGERTSOGT Porphyry Copper Systems 2. • Schematic illustration of porphyry Cu system Sillitoe, 2010 3. Porphyry stock and underlying pluton, overlying comagmatic volcanic rocks 4. • Alteration – Sodic- calcic – potassic – sericitic – advanced argillic Sillitoe (2010) Alteration-mineralization

  • Figure 6 from Porphyry Copper Systems | Semantic Scholar

    Notwithstanding the assertion that cartoons of this sort (including Fig. 10) add little to the understanding of porphyry Cu genesis (Seedorff and Einaudi, 2004), they embody the relationships observed in the field and, hence, aid the explorationist. Modified from Sillitoe (1995b, 1999b, 2000). - Porphyry Copper Systems

  • 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

  • Cenozoic Tectonics and Porphyry Copper Systems of the

    Jan 01, 2012 Constantino Mpodozis, Paula Cornejo, 2012. Cenozoic Tectonics and Porphyry Copper Systems of the Chilean Andes , Geology and Genesis of Major Copper Deposits and Districts of the World: A Tribute to Richard H. Sillitoe, Jeffrey W. Hedenquist, Michael Harris, Francisco Camus

  • The behavior of Fe and S isotopes in porphyry copper

    Feb 01, 2020 Nevertheless, our understanding of Fe isotope behaviors in porphyry copper systems is still incomplete. Although it has been recognized that the rigorous interpretation of the Fe isotope data in porphyry ore deposits requires the constraints on (i) Fe isotope composition of the fluid and (ii) Fe isotope fractionation mechanisms in fluid-mineral systems, neither of the

  • Anhydrite in Porphyry Copper systems...just how good is it?

    Likely it is just part of an Iron Oxide porphyry system. When it has gold and Copper it's hard to not call it an IOGC. According to the work below, Mafic

  • Kincora unveils encouraging copper porphyry potential on

    Feb 11, 2022 Kincora’s portfolio in total covers three large-scale and underexplored porphyry systems, and is located in the Southern Gobi copper-gold belt. At the most advanced project – the Bronze Fox mining license – an independently defined 1.3-1.5Mt copper metal equivalent exploration target has been defined with plans to convert this to a JORC

  • Crustal magmatic controls on the formation of porphyry

    Jul 06, 2021 The large to giant porphyry Cu deposits in thin arc systems such as Papua New Guinea, Indonesia, Alaska and the Philippines 21,111,112,113,114,115 are, in general, characterized by higher Au and

  • Porphyry Copper Systems - 百度学术

    Porphyry Cu systems are initiated by injection of oxidized magma saturated with S- and metal-rich, aqueous fluids from cupolas on the tops of the subjacent parental plutons. The sequence of alteration-mineralization events charted above is principally a consequence of progressive rock and fluid cooling, from 700 to 250 C, caused by

  • Abacus Provides Update on Willow

    Feb 14, 2022 Porphyry copper systems are large in extent, and geochemistry collected from the 2018 drilling indicated that a likely porphyry center occurs north of the area initially drilled. The Company’s

  • The role of incremental magma chamber growth on ore

    Dec 15, 2020 1. Introduction. Porphyry copper systems form in volcanic arcs above subduction zones at convergent plate boundaries by hydrothermal fluids expelled from hydrous magmatic intrusions within the upper crust (Richards, 2009; Sillitoe, 2010).They provide most of the world's Cu and half of its Mo reserves and are important sources for Au, Ag, Re, Pb and

  • Crustal structure control on porphyry copper systems in

    Aug 27, 2021 Mpodozis C, Cornejo P (2012) Cenozoic tectonics and porphyry copper systems of the Chilean Andes. Soc Econ Geol Special Publ 16:329–360. Google Scholar Mungall JE (2002) Roasting the mantle: slab melting and the genesis of major Au and Au-rich Cu deposits. Geology 30:915–918. Article Google Scholar