geology of porphyry copper deposits

Geology Of Porphyry Copper Deposits

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 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. deposit.

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  • Geological Features and Origin of Porphyry Copper Deposits

    Geological Features And Origin Of Porphyry Copper Deposits

    the porphyry copper deposits there can be classified into three types in terms of their host rocks and ore-forming periods: (1) caledonian classic porphyry copper deposits, (2) hercynian classic and volcanic porphyry copper deposits, and (3) yanshanian plutonic and volcanic porphyry copper deposits.

  • Geology and physicochemical conditions of copper -gold

    Geology And Physicochemical Conditions Of Copper -gold

    copper in british columbia is mined primarily from porphyry cu-au deposits, which accounted for $1.5 billion in revenues, or 19% of the province’s mining sector, in 2012 (pricewaterhousecooper, 2012). gold in these porphyry deposits is recovered as a byproduct of copper mining. in 2012 it accounted for $275 million in revenues, or 4% of the

  • Geology of the Escondida Porphyry Copper Deposit

    Geology Of The Escondida Porphyry Copper Deposit

    porphyry copper deposits—the primary source of the world’s copper—are a consequence of the degassing of intrusion com- plexes in magmatic arcs associated with ancient subduction zones .

  • (PDF) The formation of porphyry copper deposits

    (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 zones.

  • Geology and origin of the Zhunuo porphyry copper deposit

    Geology And Origin Of The Zhunuo Porphyry Copper Deposit

    the zhunuo porphyry copper deposit in the gangdese belt of southern tibet contains 2.37 mt at 0.57% cu. in this deposit, eocene rhyolite (51.6 ± 1.0 ma) and quartz porphyry (49.1 ± 0.6 ma) were intruded by monzogranite (14.7 ± 0.3 ma) and monzogranite porphyry (14.5 ± 0.2 ma) which commonly host mafic microgranular enclaves (14.9 ± 0.3 ma).

  • Understanding how porphyry-type copper deposits are formed

    Understanding How Porphyry-type Copper Deposits Are Formed

    in a paper published in the journal communications earth & environment, the scientists explain that porphyry copper deposits develop several kilometres below the earth’s surface above large magma...

  • Geology of the post-collisional porphyry copper–molybdenum

    Geology Of The Post-collisional Porphyry Copper–molybdenum

    although porphyry copper deposits are usually thought to form in island-arc and continental arc settings (sillitoe, 1972, mitchell, 1973, cooke et al., 2005), they can also occur in post-collisional extensional settings (hou et al., 2003a, hou et al., 2004, hou et al., 2007, hou et

  • Porphyry copper deposit - Wikipedia

    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

  • Geology of the El Abra porphyry copper deposit, Chile

    Geology Of The El Abra Porphyry Copper Deposit, Chile

    from 1972 to 1975, the corporacion nacional del cobre de chile completed an evaluation program known as the el abra project.in common with several other major porphyry copper deposits in the region, el abra is related to a regional structure known as the west fissure and is emplaced in tertiary intrusive rocks of intermediate composition, which in turn form part of an intrusive and volcanic complex, the

  • Porphyry Copper Deposit Model - USGS

    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 copper and a major source of molybdenum, gold and silver. despite relatively low grades (average 0.44 percent copper in 2008), pcds have significant economic and societal impacts due

  • Geology and origin of the Zhunuo porphyry copper deposit

    Geology And Origin Of The Zhunuo Porphyry Copper Deposit

    the zhunuo porphyry copper deposit in the gangdese belt of southern tibet contains 2.37 mt at 0.57% cu. in this deposit, eocene rhyolite (51.6 ± 1.0 ma) and quartz porphyry (49.1 ± 0.6 ma) were intruded by monzogranite (14.7 ± 0.3 ma) and monzogranite porphyry (14.5 ± 0.2 ma) which commonly host mafic microgranular enclaves (14.9 ± 0.3 ma).

  • Porphyry Copper Systems*

    Porphyry Copper Systems*

    this field-oriented article reviews the geology of porphyry cu systems at regional, district, and deposit scales. the resul-tant geologic model is then used as the basis for a brief syn-thesis of porphyry cu genesis and discussion of exploration guidelines. the deposits and prospects used as examples

  • Geology of the San Manuel Copper Deposit Arizona

    Geology Of The San Manuel Copper Deposit Arizona

    geological survey examined the property and recommended more exploration. the tj. s. bureau of mines drilled a total of 17 holes which established the existence of the copper deposit. the bureau discontinued work in 1945 when the magma copper company obtained an

  • What is a Porphyry Copper Deposit? - Arizona Geological

    What Is A Porphyry Copper Deposit? - Arizona Geological

    distribution of world's porphyry copper deposits (modified from singer et. al., 2008). few porphyry copper deposits are greater than 340 million years old. formed at relatively shallow depths in the earth's crust (less than 15,000 to 30,000 feet) in areas characterized by high rates of

  • Spence Porphyry copper, Geology of the Deposit

    Spence Porphyry Copper, Geology Of The Deposit

    geology of the spence porphyry copper deposit miguel tapia bhp billiton, antofagasta, chile ([email protected]) the spence deposit is hosted in paleocene (57 ma) quartz monzonite to granodiorite stocks and dikes which intruded volcanic and volcanoclastic rocks of the upper jurassic to lower cretaceous quebrada mala formation. at least

  • Geology of the Caspiche Porphyry Gold-Copper Deposit

    Geology Of The Caspiche Porphyry Gold-Copper Deposit

    geology of the caspiche porphyry gold-copper deposit, maricunga belt, northern chile* introduction and exploration history thecaspicheporphyry gold-copper deposit is the latest dis- covery in the maricunga metallogenic belt, located between latitudes 26° and 28°s in the high volcanic andes of the ata- cama region, northern chile (fig. 1).

  • Geology and geochronology of porphyry copper and

    Geology And Geochronology Of Porphyry Copper And

    porphyry copper and molybdenum deposits in west-central british columbia are associated with plutons of late cretaceous and tertiary age which intrude mesozoic volcanic and sedimentary rocks of the intermontane tectonic belt. the porphyry deposits are contained in an area bounded on the west by granitic rocks of the coast plutonic complex, and on the east and southeast by a belt containing

  • Geology of Copper | Properties, Mining, and Formation of

    Geology Of Copper | Properties, Mining, And Formation Of

    until the development of the modern copper mining process, it was typically a byproduct of mining for other metals. the deposits that contain the largest quantities of copper are called porphyry deposits, and the process of extracting it usually involves drilling an open pit into a layer of sedimentary rock. how copper forms in the earth

  • PorterGeo Database - Ore Deposit Description

    PorterGeo Database - Ore Deposit Description

    descriptions of major ore deposits world wide. the panguna porphyry copper-gold deposit is located in the crown prince range of central-south bougainville island in eastern papua new guinea, at an altitude of 500 to 1200 m (#location: 6° 19' 0's, 155° 29' 36'e). gold was initially discovered by prospectors at kupei in 1930, and shortly after at nearby panguna, some 5.5 km to the sout-west.

  • Advances in Geology of the Porphyry Copper Deposits

    Advances In Geology Of The Porphyry Copper Deposits

    the volume is particularly significant because porphyry coppers are by far the most important class of deposits in terms of global copper reserves and, most importantly, because southwestern north america contains an unusually large number and variety of these deposits.

  • Giant Porphyry Deposits: Characteristics, Distribution

    Giant Porphyry Deposits: Characteristics, Distribution

    more than half of the 25 largest known porphyry copper deposits, defined in terms of contained copper metal, formed during three time periods: the paleocene to eocene, eocene to oligocene, and middle miocene to pliocene. these giant deposits are clustered within three provinces, central chile, northern chile, and southwest arizona-northern mexico.

  • Geology of the Collahuasi District Porphyry Copper Deposits

    Geology Of The Collahuasi District Porphyry Copper Deposits

    geology of the collahuasi district porphyry copper deposits glenton j. masterman1 and richard l. moore2 1 c entre for ore deposi t r search, uni versi y of tasm ani a, pri ate b g 79, hobart, tasm 7001, australi ([email protected]); 2 toronto, ontario, canada

  • The geological characteristics, geochemical signature and

    The Geological Characteristics, Geochemical Signature And

    porphyry deposits of the circum-pacific region contain a large amount of the world’s copper, molybdenum and gold. these deposits are formed from calc-alkaline and potassic magmas characterized by varying oxidation states ( f o2), which contribute to different ore mineral assemblages and contrasting relationships to hydrothermal alteration zones.

  • Advances in Geology of the Porphyry Copper Deposits

    Advances In Geology Of The Porphyry Copper Deposits

    advances in geology of the porphyry copper deposits: southwestern north america page 85 s. r. titley (ed.), the university of arizona press, tucson, xiv + 560 pp., 1982, $35.00 reviewed by stephen e. kesler this book summarizes recent advances in information on the porphyry copper deposits of southwestern north america. it is a sequel