Request PDF | On Jan 1, 2008, Jing Wen Mao and others published Iron oxide-copper-gold deposits: Characteristics, present research situation and ore prospecting | Find, read and cite all the ...
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Hydrothermal iron oxide-copper-gold (IOCG) ore deposits are globally important sources of Cu and Au. IOCG systems show many common features, but also considerable diversity in terms of geological setting, mineralization style and ore fluid characteristics. The key factors that control ore formation are controversially debated and …
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The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ( CuFeS2 C u F e S 2) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper.
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The Prominent Hill deposit is a large iron oxide copper-gold (IOCG) resource located in the Olympic IOCG province of South Australia. ... (A, B, C, and D). Fluid A is the main ore fluid and hosted in fluorite and barite intergrown with Cu sulfides in the breccia matrix. It is weakly saline (≤10 wt % NaCl equiv) and contains low concentrations ...
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The project main objectives are to: 1) geologically, characterize the setting and origin of the iron-copper-cobalt-gold-rare earth element deposits, and advance the knowledge of rare earth element and Co potential within iron oxide-copper-gold (IOCG) deposits of southeast Missouri, and 2) geophysically delineate and characterize the subsurface Precambrian …
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The treatment of copper sulfide minerals containing a high percentage of oxide copper causes problems in the concentration process, decreasing the copper content. In order to increase the efficiency of the concentration process, it is necessary to treat the copper oxide component by leaching the grinded ore prior to the flotation, or by ...
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Cu/Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold-rich and gold-poor deposits. ... were used in this study to determine the gold content of sulfide and oxide minerals in porphyry copper–gold deposits. Analyses were carried out at …
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By David Tilley / August 7, 2013. Iron oxide-copper-gold or IOCG deposits can be of tremendous size. The largest known deposit of this type is Olympic Dam, located 560 kilometres north of Adelaide, South Australia. Olympic Dam is Australia's largest underground mine. In 2012, plans to expand the mine into an enormous open pit were put …
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An ore containing both gold and copper can be processed using a combination of pyrometallurgical and hydrometallurgical techniques to extract both metals. As earlier stated, pyrometallurgical ...
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Gold processing - Mining, Concentrating, Refining: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then …
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Iron oxide-copper-gold (IOCG) deposits are distinguished by higher copper grades than porphyry copper deposits (mostly > 1%) and wide range of low grade gold (Sillitoe, 2003). The grade gold in ...
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Many diverse ore systems are classified together as iron oxide copper-gold (IOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic environment, or sources of ore-forming fluid, metals, or other ore components.
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Magnetite is the most important iron ore in iron oxide-apatite (IOA) deposits which represent the Cu-poor endmember of the iron oxide-copper–gold (IOCG) clan. Magnetite chemistry has been used as a petrogenetic indicator to identify the geological environment of ore formation and as a fingerprint of the source reservoir of iron.
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high percentage of oxide copper causes problems in the concentration process, decreasing the copper content. In order to increase the e ciency of the concentration process, it is necessary to treat the copper oxide component by leaching the grinded ore prior to the flotation, or by leaching the flotation tailings coming out from the ...
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The invention discloses a method for extracting gold from copper-oxide oxidized gold ores. The method comprises the following steps: 1, carrying out ammonia-cyanide leaching on the copper-oxide oxidized gold ores to obtain an ore pulp; 2, adding hypochlorite into the ore pulp, and stirring to remove copper in order to obtain a copper removed ore …
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Abstract Iron oxide copper-gold (IOCG) and iron oxide-apatite (IOA) deposits are major sources of Fe, Cu, and Au. Magnetite is the modally dominant and commodity mineral in IOA deposits, whereas magnetite and hematite are predominant in IOCG deposits, with copper sulfides being the primary commodity minerals.
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The leaching behavior of gold from an oxide gold ore using copper–tartrate–thiosulfate solutions has been investigated. Experimental parameters, …
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Many diverse ore systems are classified together as iron oxide copper-gold (IOCG) deposits based on an empirical definition arising primarily from geochemical …
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Iron oxide copper-gold (IOCG) deposits are major sources of Cu, contain abundant Fe oxides, and may contain Au, Ag, Co, rare earth elements (REEs), U, and …
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School of Natural Sciences and Centre of Excellence in Ore Deposits (CODES), University of Tasmania, Hobart, Tasmania 7001, Australia. Search for other works by this author on: ... metal distribution patterns and geochemical signatures of alteration/Fe oxide mineralization in the Wirrda Well iron oxide copper-gold (IOCG) prospect. The …
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Australia contains various types of Iron-Oxide-Copper-Gold (IOCG) deposits, which is an important source of Cu. ... Haynes, D.W., Porter, T.M., 2000. Iron oxide copper (-gold) deposits: their position in the ore deposit spectrum and modes of origin. Hydrothermal iron oxide copper-gold and related deposits: A global perspective: …
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Apr 2022. J GEOCHEM EXPLOR. Pedro Acosta-Góngora. Eric G Potter. Christopher JM Lawley. Gregory Sparkes. View. Show abstract. Request PDF | Mineral systems with iron oxide copper-gold (IOCG) and ...
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Iron oxide copper-gold (IOCG) deposits are consequences of lithospheric- to deposit-scale earth processes, and form where there was a coincidence of ore-forming processes in space and time. ... available sources of ore metals (i.e., copper, gold, uranium, rare-earth elements) and hydrothermal fluids; (2) energy sources to drive fluids …
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The Mantoverde iron oxide copper-gold (IOCG) district, northern Chile, is known for its Cu production from supergene ores. Recently, exploration outlined an additional hypogene ore resource of 440 Mt with 0.56 percent Cu, and 0.12 g/t Au. The hypogene sulfide mineralization occurs mainly as chalcopyrite and pyrite, typically in …
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Iron oxide copper-gold (IOCG) deposits are a research focus of the current ore deposit geology, and have attracted much attention among the worldwide geologists …
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Many diverse ore systems are classified together as iron oxide copper-gold (lOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic …
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Iron oxide copper–gold (IOCG) deposits contain economic or anomalous gold, and the gold distribution is important both for its economic significance and ore genesis. …
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Iron oxide copper-gold (IOCG) deposits are major sources of Cu, contain abundant Fe oxides, and may contain Au, Ag, Co, rare earth elements (REEs), U, and other metals as economically important byproducts in some deposits. They form by hydrothermal processes, but the source of the metals and ore fluid(s) is still debated.
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The iron oxide copper-gold (IOCG) group of deposits, initially defined following discovery of the giant Olympic Dam Cu-U-Au deposit, has progressively …
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Flotation of Gold Ores. Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 17.8 Flotation of Oxide Copper–Gold Ores. Oxide copper–gold ores are usually accompanied by iron hydroxide slimes and various clay minerals. There are several deposits of this ore type around the world, some of which are located in Australia …
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