بيت /porphyry copper deposits
These include goldcopper porphyry deposits and clusters such as Galore Creek, Red Chris, Kemess, Mt. Milligan, and KSM. Intimately associated with these mineralized porphyry intrusive complexes are polymetallic skarn and epithermal deposits like the Premier Mine and Brucejack deposits.
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IGNEOUSRELATED ACTIVE GEOTHERMAL SYSTEM VERSUS PORPHYRY COPPER HYDROTHERMAL SYSTEM Masakatsu Sasada Geological Survey of Japan, 113 Higashi, Tsukuba, Japan ... volcanoes are inferred to overlie the porphyry copper deposits, whose depth is estimated to be to 3 km at minimum (Sillitoe, 1973).
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The recognition of porphyry copper and related deposits serves to help in the delineation of prospective exploration terrain for additional systems. In other words, the best place to explore for a new porphyry deposit is near a known porphyry deposit.
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Porphyry copper deposits commonly yield molybdenum and silver as coproducts, were. The intrusive activity responsible for Arizona's porphyry copper deposits occurred about 70 million years ago, in the Earth's crust deep below the ground surface. The rich metal deposits were subsequently exposed millions of years later by faulting and erosion. Weathering processes, which accompany uplift and .
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Simplified cross section of a copper porphyry system that is generating a mineralized system. The felsic porphyry intrusion is the heat engine that drives mineralizing fluids to various parts of the system.
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the Porphyry Copper Deposits: Southwestern North America PAGE 85 S. R. Titley (Ed.), The University of Arizona ... information on the porphyry copper deposits of southwestern North America. It is a sequel to an earlier summary volume published by the same group in 1966. The new volume is ... Advances in Geology of the Porphyry Copper Deposits ...
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The locations of 88 porphyry and related copper and molybdenum occurrences are shown on a 1:1,000,000scale topographic base map of Nevada. In addition to porphyry copper the map includes copper skarn deposits, copperbearing highlevel alteration zones, .
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of copper deposit, the socalled porphyrytype, that is estimated to contain nearly 50% of the worlds' pre served of this strategic metal (Gustafson, 1978; Guil
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The Helvetia Area Porphyry Systems, Pima County, Arizona S. A. ANZALONE ASARCO Incorporated, Tucson, Arizona ABSTRACT The Helvetia area porphyry copper deposits occur within an extensive Laramide porphyry system located in the Santa
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Porphyry definition is a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass. a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass; an igneous rock of porphyritic texture.
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phyry copper deposits worldwide, whereas Verde at Refugio is a true porphyry gold deposit. Potassic alteration zones and Aveinlets are strongly developed at Cerro Casale, whereas they are .
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Sillitoe RH 1993 Gold rich porphyry copper deposits Geological model and from GEOL 562 at University of Kansas
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Oct 30, 2018· Cordoba Minerals Identifies New Porphyry Copper Target Immediately West of the Alacran Deposit Intrusive Breccias Point to Mineralized Porphyry Source of the ... seen in porphyry deposits at the top or "apical" portions of the intrusive stock in .
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copper and molybdenum resource and large expansion capability Determined Copper Creek was an "early halo" deposit, and revised and verified geologic model
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The results confirm discovery of a large porphyry coppergold system resulting from purposeful compilation and insightful interpretation of fifty years of exploration data. The results are similar to the historic drilling in copper oxide mineralization, and show anomalous multitrace element signatures consistent with such a system.
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Porphyry copper deposits are the world's most important source of Cu but other elements such as Mo, Au, Ag, Re, Sn, W, PGE, In, Se, Te, Bi could be recovered from these deposits as subproducts or coproducts of Cu extraction (Berger et al., 2008; Sinclair, 2007).
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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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New Mexico Geological Society Guidebook, 59POTENTIAL FOR LARAMIDE PORPHYRY COPPER DEPOSITSth Field Conference, Geology of the Gila Wilderness Silver City Area, 2008, p. 141150. 141 INTRODUCTION New Mexico lies at the eastern edge of one of the world's great metalbearing provinces.
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May 31, 2015· 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.
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Porphyry copper deposits contain large volumes of rock which have undergone alteration as the result Of circulation of hydrothermal fluids. Several workers have attempted to svstematize the characteristics of such alteration bv defining groups of minerals which commonly occur together and
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a porphyry copper system. The local presence of porphyry dikelets as breccia matrix, hypersaline fluid inclusions, Kfeldspar + shreddy biotite + rutile ± andalusite alteration, and chalcopyrite + bornite mineralization are indications of a link to an underlying porphyry copper deposit.
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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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Highsulfidation epithermal deposits may occur in lithocaps above porphyry Cu deposits, where massive sulfide lodes tend to develop in deeper feeder structures and Au ± Agrich, disseminated deposits within the uppermost 500 m or so.
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discovery and exploration of porphyry copper deposits in South America. The Ocaña Porphyry Project in southern Peru is the Company's primary exploration project, while it has recently entered into a MOU on the Maria Reyna copper porphyryskarn property in Cusco Region, as its secondary project.
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The Yerington Pit, the Giant Bear Deposit and then we have the MacArthur Oxide Deposit and we have the Groundhog Prospect which is immediately north of the Giant Pebble Deposit in Alaska. Pebble is the largest undeveloped porphyry, copper, gold deposit in the world.
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