Quarrying Of Porphyry Copper
Supergene Oxidized and Enriched Porphyry Copper and
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
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The Potential for Porphyry Copper-Molybdenun1 …
Deposits that may be of the porphyry copper-type Conner-Neverson quarry area _____ _ Deposits of porphyry copper affinity----- ... porphyry copper deposit is much greater than in …
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Mineral Prospectivity Mapping of Porphyry Copper …
Several large-scale porphyry copper deposits (PCDs) with high economic value have been excavated in the Duolong ore district, Tibet, China. However, the high altitudes and harsh conditions in this area make traditional exploration difficult. Hydrothermal alteration minerals related to PCDs with diagnostic spectral absorption features in the visible–near …
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Identifying tectonic settings of porphyry copper deposits …
Porphyry Cu (±Mo ± Au) deposits (PCDs), as the most important type of ore deposits, provide nearly three-quarters of the copper, half of the molybdenum, and one-fifth of …
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(PDF) Tectonic setting of Cretaceous porphyry copper deposits of
Cretaceous porphyry copper deposits of northern Chile (28º-29º30' S) are genetically related with dacitic to dioritic porphyries and they represent a still poorly-explored target for Cu resources.
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Zaldívar Copper Mine
The solvent extraction trains transfer copper to the tankhouse, which produces copper cathodes meeting LME Grade A specifications. Production. In 2004, the mine produced 147,602t of Grade A-standard copper …
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Modeling the Formation of Porphyry-Copper Ores | Science
Porphyry-copper ore systems, the source of much of the world's copper and molybdenum, form when metal-bearing fluids are expelled from shallow, degassing magmas. On page 1613 of this issue, Weis et al. demonstrate that self-organizing processes focus metal deposition. Specifically, their simulation studies indicate that ores develop as ...
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Petrogenesis and thermal history of the Yulong porphyry copper …
The Yulong porphyry copper deposit (6.5 Mt at 0.46 % Cu) in eastern Tibet was formed in a post-collisional setting. New zircon U–Pb and U–Th/He ages, apatite U–Th/He ages and in-situ zircon Hf isotopic and trace element data for the Yulong ore-bearing adakitic porphyries elucidate the thermal history and petrogenesis of the deposit. Zircon U–Pb ages …
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Global constraints on exhumation rates during porphyry copper …
Currently, 60% of the world's copper production comes from porphyry copper deposits, often significantly enriched by surface weathering. This paper uses new global datasets and previous work to review the critical processes required for porphyry copper formation and supergene enrichment. Porphyry copper formation requires a subducting arc to create a …
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Porphyry copper deposits of the world: Database, maps, and …
It also presents new grade and tonnage models for three subtypes of porphyry copper deposits, maps showing locations and general ages of these deposits, and a …
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Porphyry Copper Systems1 | Economic Geology
Porphyry Cu systems are initiated by injection of oxidized magma saturated with S- and metal-rich, aqueous fluids from cupolas on the tops of the subjacent parental plutons. The …
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Predicting the emplacement of Cordilleran porphyry copper …
DOI: 10.1016/J.OREGEOREV.2021.104300 Corpus ID: 236293355; Predicting the emplacement of Cordilleran porphyry copper systems using a spatio-temporal machine learning model @article{DazRodrguez2021PredictingTE, title={Predicting the emplacement of Cordilleran porphyry copper systems using a spatio-temporal machine learning model}, author={J. A. …
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The Mineralization and Structural Geology of the Porphyry Copper …
The porphyry copper deposits can be traced in Pakistan from the north through Kohistan Island Arc (KIA) up to the south to Chaghi Magmatic Arc (CMA). These deposits are mainly found in and around ...
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Philippine Porphyry and Epithermal Deposits: An …
Porphyry and Epithermal Deposits in the Philippines This special issue aims to improve our understanding of Philippines porphyry and epithermal deposits, presenting the results of new research into the characteristics and origins of …
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Batu Hijau Copper-Gold Mine
Batu Hijau copper-gold mine is located on the Indonesian island of Sumbawa in the province of West Nusa Tenggara, 1,530km east of Jakarta. The Contract of Work for the project is held by PT Newmont Nusa Tenggara (PTNNT), a company owned by Newmont Indonesia (US, 35.44%); Nusa Tenggara Mining Corporation (Japan, 27.56%), PT Pukuafu …
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Clues to hidden copper deposits | Nature Geoscience
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 …
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Porphyry copper: Grade and tonnage models revisited
Porphyry copper: Grade and tonnage models revisited . Jane M Hammarstrom* and Gilpin R Robinson . US Geological Survey, Reston, VA, USA, *e-mail, [email protected] . Grade and tonnage models are frequency distributions of tonnages and average grades of well-explored deposits of a given type that are used as analogs for undiscovered deposits in ...
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[PDF] The Chain of Processes Forming Porphyry Copper …
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 metals Cu, Au, and Mo. Deposit formation a few kilometers below surface is the product of a chain of geologic processes operating at different scales in space and time. This paper explores …
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Ontology-driven relational data mapping for constructing a …
Third, the knowledge graph of the porphyry copper deposit was constructed based on relational data mapping and knowledge fusion. Based on the resulting knowledge graph, several exploratory cases were conducted to make knowledge reasoning and discovery. It is indicated that the solution proposed in this study is a fast batch-processing ...
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Tempo of magma degassing and the genesis of porphyry copper …
Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth's crust.
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Supergiant porphyry copper deposits are failed large …
Abstract. Porphyry copper deposits, the principal source of copper and molybdenum, form at convergent margins. Copper is precipitated from fluids associated with …
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4. PORPHYRY COPPER MODEL | Geochemical Perspectives
During the early months of my IIG porphyry copper project in Chile, I had a revelatory moment on an evening LAN Chile flight from Arica south to Santiago (Fig. 1.8). From a window seat on the left side of the Sud Aviation Caravelle, I could see the line of Quaternary stratovolcanoes along the Chile-Bolivia border illuminated by the setting sun ...
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Porphyry copper assessment of the Tethys region of …
A probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in the Tethys region of western and southern Asia was carried out as part of a global mineral resource assessment led by the U.S. Geological Survey (USGS). The purpose of the study was to delineate geographic areas as permissive tracts for the …
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Discovery of a Jurassic Porphyry Copper Belt, Pangui Area, …
Grassroots exploration has led to discovery of 10 porphyry copper prospects in the previously unexplored Jurassic arc of southeastern Ecuador. The prospects are located in steep, wet, jungle-covered terrain in the Pangui area, part of the Cordillera del Cóndor. The exploration program, initially mounted in search of gold in the Oriente ...
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Imaging the subsurface architecture in porphyry copper …
An essential part of the world's remaining mineral resources is expected to reside deep in the crust or under post-mineralization cover. For porphyry copper deposits, the world's primary source ...
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From long-lived batholith construction to giant …
Porphyry Cu ore deposits are a rare product of arc magmatism that often form spatiotemporal clusters in magmatic arcs. The petrogenetic evolution of igneous rocks that cover the temporal window prior to and during …
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Super Porphyry Copper & Gold Deposits-A Global Perspective …
Porphyry copper and high-sulphidation epithermal mineralisation within the giant Tampakan Cu-Au deposit (2500 Mt @ 0.48% Cu and 0.2 g/t Au) is hosted by a cluster of four overlapping ...
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Porphyry Copper Province of Northern Cordilleran …
Porphyry copper deposits of the Cordilleran orogen north of the Columbia volcanic plateau and the Idaho batholith and east of the Alaska Range in Alaska may have characteristics distinct from those which occur elsewhere in the orogen. By use of aggressive procedures, porphyry copper exploration in British Columbia, the Yukon, and Alaska has ...
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Copper mining in Chile and its regional employment linkages
Porphyry copper deposits are currently the largest source of copper ore. In particular, the greatest concentration of the largest copper porphyries is in northern Chile. ... Mining & quarrying comprises copper mining and other mining activities. Manufacturing industry in turn involves the categories of food, beverages & tobacco; lumber ...
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Generation of porphyry copper deposits by gas–brine …
DOI: 10.1038/NGEO2351 Corpus ID: 128690704; Generation of porphyry copper deposits by gas–brine reaction in volcanic arcs @article{Blundy2014GenerationOP, title={Generation of porphyry copper deposits by gas–brine reaction in volcanic arcs}, author={Jon Blundy and John A. Mavrogenes and Brian Tattitch and Steve Sparks and Amy K. Gilmer}, journal={Nature …
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