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What is a Porphyry Copper Deposit?
Although copper has been mined from a number of different types of mineral deposits, porphyry copper deposits are the most important source for copper, accounting for more than 60 percent of the annual world copper production and approximately 65 percent of the known total copper resource...

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Medet, Porphyry copper deposit
Bogdanov, BD, 1986, Copper ore deposits in Bulgaria, in Petraschek, WE, and Jankovi?, S, eds, Geotectonic evolution and metallogeny of the Mediterranean area ....

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porphyry copper AZGS Document Repository
Three mineralizing episodes, each with a distinctive deposit type, are responsible for the majority of Arizona s copper deposits Stratabound volcanogenic massive sulfide deposits formed during the Proterozoic the economically important porphyry copper deposits were emplaced at the Cretaceous - Tertiary boundary and deposits associated with ....

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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 tinIn addition, porphyry deposits may host valuable by-products ....

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Porphyry Copper Deposits of the World Database and Grade ,
Thus, mineral deposit models play the central role in transforming geoscience information to a form useful to policy makers 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 porphyry copper deposits...

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Porphyry Copper Deposit Density Economic Geology ,
Porphyry copper deposit densities vary from 2 to 128 deposits per 100,000 km 2 of exposed permissive rock, and the density histogram is skewed to high valu Ninety percent of the control areas have densities of four or more deposits, 50 percent have densities of 15 or more deposits, and 10 percent have densities of 35 or more deposits per ....

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King Copper AZGS
Copper remains Arizona s most abundant and valuable metallic mineral product In 2017, Arizona provided 68 of domestic copper production in the US Arizona has two major types of copper deposits Porphyry Copper in southern and central Arizona and, the Volcanogenic Massive Sulfide Copper of the United Verde Mine in Jerome of central Arizona...

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No need to dig deep New tool maximizes extraction of gold ,
Jan 14, 2020 0183 32 A UNIGE researcher has discovered the particularities of porphyry copper and gold deposits, providing mining companies with a new tool to maximize the extraction of these two metals...

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Porphyry Copper Deposits of the American Cordillera
and resulted in identification of 25 porphyry copper deposits by 1980 Among the first recognized as having porphyry copper potential by mid-century were the disseminated ores at Silver Bell, described by Richard and Courtright 1954 Much of the early his 173 tory of these deposits has been recorded from economic and engi 173...

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Elatsite, Porphyry copper deposit
Deposit type Porphyry copper Deposit subtype Cu-Au Age Ma 92 Ma Age determination method Re-Os molybdenite Age range 9188 177 05 to 9243 177 03 Ma Re-Os molybdenite 9210 177 03 Ma and 9184 177 03 Ma U-Pb zircon Age reference Zimmerman and others 2008 von Quadt, Peytcheva and others 2005 Minerals...

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New assays increase potential of large porphyry copper ,
1 hour ago 0183 32 It is believed to contain the characteristics required to potentially host a significant porphyry copper-gold deposit, such as copper-bearing Ordovician shoshonites with weak to moderate copper assays of up to 01 with the content increasing as the rocks become more ,...

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Mineral deposit
Porphyry deposits Among the most distinctive hydrothermal deposits 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 mixture of coarse and fine mineral grains Porphyry copper deposits and their close relatives, porphyry molybdenum deposits contain disseminated mineralization ....

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PORPHYRY DEPOSITS
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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Development of a Copper Porphyry deposit
May 31, 2015 0183 32 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 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 The systems commonly define linear belts, some many ....

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PDF The formation of porphyry copper deposits
Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver used by humans Porphyry ore typically forms in magmatic arcs above subduction zon...

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PDF Porphyry copper deposits of the American Cordillera ,
Porphyry copper deposits of the American Cordillera...

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Geology and porphyry copper
The Christmas copper deposit, located in southern Gila County, Arizona, is part of the major porphyry copper province of southwestern North America Although Christmas is known for skarn deposits in Paleozoic carbonate rocks, ore-grade porphyry-type copper mineralization also occurs in a composite granodioritic intrusive complex and adjacent mafic volcanic country rocks...

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Porphyry Deposits General characteristics and modeling ,
Porphyry Copper-Gold Deposits Oyu Tolgoi 2,467 Mt 068 wt Cu, 032 g/t Au, 790 t Au Batu Hijau 1,644 Mt 044 wt Cu, 035 g/t Au, 572 t Au Frieda River 1,103 Mt 061 wt Cu, 032 g/t Au, 354 t Au Porphyry Cu-Mo Deposits El Teniente 12,482 Mt 063 wt Cu, 002 wt Mo, 0035 g/t Au, 437 t Au...

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Porphyry copper deposit
Porphyry copper deposit Last updated November 09, 2019 Morenci mine open pit in 2012 The red rocks in the upper benches, and the outcrops in the background, are in the leached cappingIt appears that the bottom of the pit is in the mixed oxide-sulfide zone, and that s also what the two haul trucks in the foreground are carrying...

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The formation of porphyry copper deposits SpringerLink
Copper is a moderately incompatible chalcophile element Its behavior is strongly controlled by sulfid The speciation of sulfur is controlled by oxygen fugacity Therefore, porphyry Cu deposits are usually oxidized with oxygen fugacities >ΔFMQ 2 Mungall 2002 Sun et al 2015 The problem is that while most of the magmas at convergent margins are highly oxidized, porphyry Cu deposits ....

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GEOLOGY AND EVOLUTION OF THE COPPER FLAT PORPHYRY ,
The Copper Flat porphyry copper deposit in the northern part of the Hillsboro district was discovered in 1975 Castellano et al, 1977 Dunn, 1982, 1984 , although alteration and mineralization in the area suggested to earlier geologists that a porphyry copper deposit should occur ,...

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Epithermal Gold for Explorationists
levels are transitional to porphyry Cu -Au systems eg, the Cadia, Maricunga Belt , which are locally termed wall rock porphyry deposits by some workers Thus, there is a transition between porphyry and epithermal gold deposits, particularly in low sulphidation systems...

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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 disseminatedPorphyry copper deposits commonly contain hundreds of millions of metric tons of ore that averages a fraction of 1 percent copper by weight although they are low-grade, the ....

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Preliminary Model of Porphyry Copper Deposits
Copper skarn deposits occur near many porphyry copper host intru- sions that intruded carbonate-bearing units Einaudi and others, 1981 , and skarn mineral zoning patterns may be useful in the targeting of a potentially associated porphyry copper deposit Meinert and others, 2005...

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How to make porphyry copper deposits
Much of the world s economic copper resources are hosted in porphyry copper deposits PCDs , shallow level magmatic intrusions associated mostly with thick >45km magmatic arcs, such as mature island arcs and continental arcs However, a well-known, but unresolved paradox, is that arc magmas traversing thick crust, particularly in continental arcs, are generally depleted in Cu whereas in ....

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Porphyry copper deposit
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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REE Analysis of Anhydrite Veins in Porphyry Copper Deposits
Porphyry copper deposits are created by hydrothermal mineralization as fluids from the intrusive body precipitate metal-rich minerals These sulfur rich systems have anhydrite in the veined mineral assemblage, as well as quartz, pyrite, and chalcopyrite...

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Porphyry copper deposits of the world
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...

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