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porphyry copper

  • Porphyry-Copper-Lagerstätten Lexikon der

    Goldreiche Porphyry-Copper-Lagerstätten sind nicht ein eigenständiger Lagerstättentypus, sondern repräsentieren das goldreiche Ende des gesamten Porphyry-Copper-Lagerstätten-Spektrums. Sie entstehen unabhängig von der Zusammensetzung und der Dicke der unterliegenden Kruste. Im folgenden sind einige Charakteristika des ökonomisch zunehmend wichtiger werdenden goldreichen Porphyry-Copper

    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

    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.

    How to make porphyry copper deposits ScienceDirect

    01.01.2020· Porphyry copper deposits (PCDs) represent shallow level intrusions (2–5 km) in the crust. Mineralization of Cu ores tend to occur at the tops of porphyry systems in cupolas. Possible regimes where Cu may be mobilized include hydrothermal circulation at mid-ocean ridge centers, dehydration or melting of the subducting slab, and late stage scavenging by magmatic fluids (green arrows

    How to make porphyry copper deposits ScienceDirect

    01.01.2020· 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.

    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.

    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

    Porphyry Copper Deposits Geology for Investors

    17.10.2019· Porphyry copper deposits are typically very-low grade with between 0.4 and 1% copper. The main mineral is chalcopyrite, which is finely disseminated through the host porphyritic rocks. The only reason these ore bodies are economic is because porphyries are huge, with hundreds of millions of tonnes available in a fairly low-cost mining setting.

    Porphyry (geology) Wikipedia

    Main article: Porphyry copper The term porphyry is also used for a mineral deposit called a "copper porphyry". The different stages of cooling that create porphyritic textures in intrusive and hypabyssal porphyritic rocks also lead to a separation of dissolved metals into distinct zones.

    Porphyry Copper Systems* University of Utah

    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-hosted Au deposits in increasingly peripheral locations; and

    Porphyry Copper Deposit Model USGS

    Porphyry Copper Deposit Model By David A. John, editor, with contributions by Robert A. Ayuso, Mark D. Barton, Richard J. Blakely, Robert J. Bodnar, John H. Dilles, Floyd Gray, Fred T. Graybeal, John C. Mars, Darcy K. McPhee, Robert R. Seal, Ryan D. Taylor, and Peter G. Vikre Chapter B of Mineral Deposit Models for Resource Assessment . This report contains a revised descriptive model of

    Gold in porphyry copper deposits: its abundance and fate

    01.10.2002· Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature epithermal deposits. Whether gold remains in porphyry copper deposits is important both to their economic attractiveness and to the distribution of gold in the upper crust.

    Preliminary Model of Porphyry Copper Deposits

    Porphyry copper deposits form in continental magmatic arcs along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with subduction-related volcanic centers, although in some examples, they are thought to be associated with postcollisional volcanism.

    Home World Copper Ltd.

    Combining two exciting copper exploration projects in Chile: World Copper’s Cristal property in Northern Chile and Trimetals’ Escalones project just south of Santiago. 03. The Cristal property lies in an under-explored region along a belt of significant copper mines and has good potential for a large buried porphyry copper deposit.

    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

    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. So this gives us a

    (PDF) 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. Therefore, porphyry Cu deposits...

    Porphyry Copper Systems* University of Utah

    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-hosted Au deposits in increasingly peripheral locations; and

    Porphyry Copper Deposit Density researchgate.net

    Porphyry copper deposits, as defined for these models, have been divided into three subtypes: copper (Cu-Au-Mo), copper-gold (Cu-Au), and copper-molybdenum (Cu-Mo), which are discriminated by a...

    Porphyry Copper Exploration of the Hualapai Mountains

    Porphyry Copper Exploration of the Hualapai Mountains, Mohave County, Arizona, USA: A Multi-Faceted Approach . By Patrick Kevin Meazell II Dr. Jean S. Cline, Examination Committee Chair Professor University of Nevada, Las Vegas A variety of exploration methods including geologic mapping, trace- and major-level geochemical analyses, fluid inclusion petrography, remote sensing, and SWIR

    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

    Safford, Porphyry copper deposit USGS

    Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits

    Preliminary Model of Porphyry Copper Deposits

    Porphyry copper deposits form in continental magmatic arcs along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with subduction-related volcanic centers, although in some examples, they are thought to be associated with postcollisional volcanism.

    Home World Copper Ltd.

    The world is renewing interest in copper as it is the prime metal used in electrification. From cellular devices to Electric Vehicles, copper is everywhere. 03. The Cristal property lies in an under-explored region along a belt of significant copper mines and has good potential for a

    Porphyry Deposits: The World's Largest Source of Copper

    17.10.2019· 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 millions to a billion+ tons in size. While copper is generally the dominant metal, porphyry copper deposits can contain multiple

    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. So this gives us a

    Porphyry Copper Systems* University of Utah

    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-hosted Au deposits in increasingly peripheral locations; and

    Porphyry Copper Deposit Density researchgate.net

    Porphyry copper deposit densities vary from 2 to 128 deposits per 100,000 km2 of exposed permissive rock, and the density histogram is skewed to high values. Ninety percent of the control areas

    The Southwestern North America Porphyry Copper

    Hypogene porphyry copper mineralization is dominated by chalcopyrite (± bornite), accompanied by K-silicate, transitional K-silicate-sericitic, and sericitic alteration. Subsequent to porphyry emplacement, much of the region was subjected to an episode of weathering and erosion, followed in the mid-Tertiary by a switchover to an extensional tectonic regime and the eruption of silicic volcanic

    Porphyry Copper Exploration of the Hualapai Mountains

    Porphyry Copper Exploration of the Hualapai Mountains, Mohave County, Arizona, USA: A Multi-Faceted Approach . By Patrick Kevin Meazell II Dr. Jean S. Cline, Examination Committee Chair Professor University of Nevada, Las Vegas A variety of exploration methods including geologic mapping, trace- and major-level geochemical analyses, fluid inclusion petrography, remote sensing, and SWIR

    Why No Porphyry Copper Deposits in Japan and South

    Copper occurs in small Cretaceous and Paleogene veins, breccia pipes, and skarns in the Sanin and North Kitakami belts of Japan and Gyeongsang Basin of SE Korea (e.g., Ishihara, 1978; So et al., 1985), but the only porphyry Cu development is a minor occurrence at Dongjeom in the Gyeongsang Basin (Sillitoe, 1980a; Fig. 5).

    Porphyry Copper Deposit Model USGS

    Porphyry Copper Deposit Model By David A. John, editor, with contributions by Robert A. Ayuso, Mark D. Barton, Richard J. Blakely, Robert J. Bodnar, John H. Dilles, Floyd Gray, Fred T. Graybeal, John C. Mars, Darcy K. McPhee, Robert R. Seal, Ryan D. Taylor, and Peter G. Vikre Chapter B of Mineral Deposit Models for Resource Assessment . This report contains a revised descriptive model of

    Home Kodiak Copper Corp.

    Kodiak Copper Corp. (TSX.V:KDK) is focused on its portfolio of 100% owned copper porphyry projects in Canada and the USA.

    Home World Copper Ltd.

    Combining two exciting copper exploration projects in Chile: World Copper’s Cristal property in Northern Chile and Trimetals’ Escalones project just south of Santiago. 03. The Cristal property lies in an under-explored region along a belt of significant copper mines and has good potential for a large buried porphyry copper deposit.

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