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Preliminary Model of Porphyry Copper Deposits

The general attributes of porphyry copper deposits are summarized below Brief Description In hypogene parts of porphyry copper deposits, the copper occurs predominantly in chalcopyrite other important copper ore minerals may include bornite and enargite Ore minerals occur as disseminations and in stockworks of veins in hydrother-...

A Plate Tectonic Model for the Origin of Porphyry Copper ,

The theory of lithosphere plate tectonics, embodying the concepts of sea-floor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an actualistic, though speculative, model for the origin and space-time distribution of porphyry copper and porphyry molybdenum depositsPorphyry ore deposits, occurring in ,...

Porphyry Copper Systems

alteration-mineralization in the porphyry Cu deposits is zoned upward from barren, early sodic-calcic through potentially ore-grade potassic, chlorite-sericite, and sericitic, to advanced argillic, the last of these constituting the lithocaps, which may attain gt 1 km in thickness if unaffected by significant erosion Low sulfidation-state...

Geological setting for porphyry copper deposits in calc ,

Apr 20, 2016 0183 32 The resulting ore deposits are concentrated at different crustal levels between the magma chamber and the surface, especially the pre-existing regional caldera structures Eddy et al 1998 Smith et al 2006 The Wadi Rofaiyed deposits have many similarities to the worldwide quartz diorite-hosted porphyry copper deposits...

Porphyry Deposits Important Copper Ores

Nov 07, 2020 0183 32 This a lecture which discusses some concepts about hydrothermal deposits and in particular porphyry copper and molydenum...

PDF The formation of porphyry copper deposits

Nov 05, 2016 0183 32 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 However, generation of ....

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...

Mining Massive Porphyry Copper Deposits

Mar 16, 2017 0183 32 Utah Copper and Boston Consolidated Min The first two porphyry coppers were the Utah Copper, and Boston Consolidated, at Bingham, Utah The Utah Copper started out with a modification of the chute-caving ,...

Porphyry copper deposits

Jul 31, 2018 0183 32 Epithermal deposits include a wide variety of ores Au, Au- Ag, Ag, Pb, Zn, Cu, Sn, Sb, U and Hg Comparison between the the porphry copper deposits and the epithermal deposits 11 Schematic diagram oft he tectonic setting of porphyry, epithermal and skarn deposits Image Credit MBG...

Geology and copper deposits of the Tyrone district

latest movement on this fault tilted the ore deposit 5-8 176 to the northeast Several occurrences of copper oxides are found west of the Burro Chief fault, the most prominent of these is the copper oxide mineralization near the Ohio mine adjacent to a ,...

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 ,...

Porphyry copper deposit

bodies are very large, generally containing from 100 million to several billion tons of copper ore with a copper content of 02 to 20 The majority of porphyry copper deposits occur adjacent to subduction zones ie Ring of Fire around the Pacific Ocean , which form along continental margins ie Andes Mountains and island...

copper processing

copper processing - copper processing - Ores Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed or Native copper is simply the metal found unadulterated in nature Occasionally copper is still found in its native form, but more frequently it is mixed with other minerals, some of which may have value ,...

Supergene Oxidized and Enriched Porphyry Copper and ,

Jan 01, 2005 0183 32 Richard H Sillitoe, 2005 Supergene Oxidized and Enriched Porphyry Copper and Related Deposits , One Hundredth Anniversary Volume, Jeffrey W Hedenquist, John F H Thompson, Richard J Goldfarb, Jeremy P Richards...

Bozshakol, Porphyry copper deposit

Sokolov, AL, 1998, The regional and local controls on gold and copper mineralization in central Asia and Kazakhstan, in Porter, TM, ed, Porphyry and hydrothermal copper and gold deposits A global perspective Adelaide, PGC Publishing, Australian Mineral Foundation International Conference, Perth, Western Australia, November 30 December 1 ....

Basics of Copper Porphyry Deposits for Investors Classic ,

Oct 20, 2020 0183 32 The ore in copper porphyry deposits is usually located between the potassic and phyllic alternations There is a pyrite halo surrounding the ore Chlorite, calcide, epidote, and adularia are commonly present in the propylitic alteration Pyrite is ,...

Chuquicamata, Porphyry copper deposit

Cuadra, P, and Camus, F, 1998, The Radomiro Tomic porphyry copper deposit, northern Chile, in Porter, TM, ed, Porphyry and hydrothermal copper and gold deposits ....

Porphyry Deposits PDF Geology Economic Geology

Porphyry Deposits The Importance of Porphyry Deposits as a Copper and Gold Resource Gold Resourc Copper Resources A Geological Cross Section through the Batu Hijau Porphyry Deposit, Indonesia 920 million tons of ore grading 055 wt Cu, 042 g/t Au Batu Hijau Porphyry Cu-Au Deposit, Indonesia Batu Hijau Porphyry Cu-Au Ores Hypogene ....

Types of Copper Deposits in the World

Sep 01, 2021 0183 32 Most types of copper deposits also have secondary ores, however, and they can add a great deal of value to a deposit The Escondida mine is primarily a chalcopyrite porphyry deposit overlain by ....

Crustal magmatic controls on the formation of porphyry ,

Jul 06, 2021 0183 32 Porphyry deposits are large, low-grade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir They are important as major sources of critical metals ....

The formation of porphyry copper deposits SpringerLink

Nov 05, 2016 0183 32 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 ,...

Porphyry Copper Deposits of the American Cordillera

A tabulation of grade and tonnage of porphyry copper ores of the region has been published by Gilmour 1982 and sum 173 marized by Titley and Anthony 1989 and Titley 1994 Re 173 serves in 1989 have been listed by Beard 1989 Production figures summarized for 45 porphyry copper deposits in the...

What is a Porphyry Copper Deposit? by David F Briggs on ,

Jan 11, 2014 0183 32 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...

Porphyry copper deposit

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 name...