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2021年7月6日 In this Review, we discuss advances in understanding crustal magmatic conditions that favour the formation of porphyry Cu deposits at subduction zones. Chalcophile
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2024年6月1日 Porphyry-related mineral deposits are giant geochemical anomalies in the Earth’s crust with orders-of-magnitude differences in the content and proportion of the three main ore
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2022年2月24日 A global database of porphyry copper deposits and prospects, updated in Spring 2024, with location, age, classification, origin, and grade
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This publication contains a computer file of information on porphyry copper deposits from around the world. It also presents new grade and tonnage models for porphyry copper deposits and
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2021年11月16日 Porphyry Cu deposits are characterized by concentrations of Cu-Fe-sulfide minerals (mainly chalcopyrite, CuFeS 2), along with pyrite (FeS 2) and variable quantities of
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Learn about the formation, characteristics, and distribution of porphyry copper deposits, which are large bodies of rock with low-grade copper minerals. Find out how they are mined and why
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4 天之前 Porphyry copper deposits are not only the primary source of copper but also contribute significantly to the global supply of molybdenum, gold, and silver. Their large size and
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2016年11月5日 The distribution of porphyry Cu deposits along the Pacific margins may be plausibly explained by ages of subducting oceanic plates (Sun et al. 2012, 2013). High oxygen
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2021年11月16日 With the exception of younger porphyry systems that have been emplaced into older uplifted and eroded batholiths (e.g., the 158–153 Ma San Carlos–Panantza-Sutsu porphyry Cu-Mo deposits hosted by the mid-Jurassic Zamora batholith, Ecuador; Chiaradia et al., 2009b), batholithic terrains are generally unprospective for porphyry Cu deposits ...
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2024年6月1日 Entrainment of any suspended sulfide particles is favored by forceful ascent of magmas in the tectonic setting where porphyry copper deposits are found (Loucks, 2021), and the H 2 O-rich and oxidized composition of such fertile magmas promotes subsequent sulfide decomposition and transfer of sulfur and metals to ore-forming fluid in the upper ...
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2016年11月5日 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 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
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2016年11月5日 According to Sun et al. [64], most porphyry copper (Cu) deposits are scattered along convergent margins associated with arc-related systems. Based on studies by Seedorff et al. [65], Audétat and ...
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2022年2月24日 Porphyry copper deposits are the world's primary source of copper and can also host a variety of secondary commodities identified as critical by the U.S. Geological Survey (U.S. Geological Survey, 2022). These
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2025年3月30日 Porphyry Cu deposits (PCDs) belong to the broader category of magmatic-hydrothermal deposits known as porphyry copper systems [1].These deposits supply nearly three-quarters of the world’s copper, about one-fifth of its gold, most of the molybdenum, rhenium, selenium, and tellurium, along with smaller quantities of other metals such as silver, palladium,
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2024年7月20日 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
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2024年7月20日 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 that can be mined using mass mining techniques.
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2024年10月29日 Porphyry copper deposits (PCDs) are vital sources of copper, gold, and molybdenum, significantly impacting the global economy. This review synthesizes recent advancements in understanding the ...
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2013年7月23日 The term “porphyry” comes from the word “porphyritic”, a textural term used by geologists to describe the mineral pattern within the rocks that commonly occur in copper porphyry deposits. Porphyry copper deposits
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2021年7月6日 The Cadia, Grasberg, Oyu Tolgoi, Kalmakyr, Pebble Copper and Bingham deposits in red symbols are the six largest Au-rich porphyry Cu deposits based on Au endowments.
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2016年2月1日 Porphyry copper deposits are large. They commonly consist of hundreds of millions to billions of tonnes of ore. However, they contain typically only 0.5–1.5% copper and are therefore classified ...
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It also presents new grade and tonnage models for porphyry copper deposits and for three subtypes of porphyry copper deposits and a map showing the location of all deposits. The value of this information and any derived analyses depends critically on the consistent manner of data gathering. For this reason, we first discuss the rules used in ...
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2024年11月4日 The prevailing view of the formation of porphyry copper deposits along convergent plate boundaries involves deep crustal differentiation of metal-bearing juvenile magmas derived from the mantle ...
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2007年1月31日 porphyry copper deposits, such as Bingham and Bajo de la. Alumbrera, sulphide deposition was primarily due to cooling. of metal-rich, saline brines below 400ºC (Ulrich et al., 2001;
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2021年1月26日 Porphyry-type deposits are the main global source of copper and molybdenum. An improved understanding of the most favorable structural settings for the emplacement of these deposits is necessary for successful exploration, particularly considering that most future discoveries will be made under cover based on conceptual target generation.
خبير الاتصال2024年12月6日 Lamont et al. focus on porphyry copper deposits associated with the Laramide orogeny, which occurred between 80 and 40 million years ago in western North America, to resolve this conundrum.
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2015年2月9日 Porphyry copper deposits, that is, copper ore associated with hydrothermal fluids rising from a magma chamber, supply 75% of the world’s copper. They are typically associated with intrusions of ...
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2002年8月6日 The information on the porphyry copper deposits is contained in the files PorCu.FP5 and PorCu.txt which are FileMaker Pro 5 and tab-delineated text files respectively. The fields in both files are described below. Deposit Name The most recent deposit name is used. There is another field, "OtherNames," which contains
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2020年4月3日 Porphyry copper±molybdenum±gold deposits (PCDs) are the most representative magmatic-hydrothermal metallogenic system above subduction zones with important economic value. Previous studies revealed that large PCDs are generally formed from initial arc magmas (from subduction-induced partial melting of the mantle wedge), which eventually ascend to the
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