Highlands declares maiden Resource at Star Mountains
with similar copper porphyry deposits elsewhere. Drill hole spacing is irregular, limited to accessible sites in the rugged terrain; nominal drill hole spacing is ~200m. A nominal cut-off grade of 0.30% Cu was applied to define the Mineral Resources, which is based on a review of comparable copper porphyry deposits elsewhere.
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Magma Evolution Leading to Porphyry Au-Cu Mineralization …
resources of 1.3 Mt Cu and 4.0 Moz Au (Ok Tedi Mining Ltd., ... Field exposures at economic porphyry deposits are typically ... The Ok Tedi deposit is located in the southern highlands of the fold ...
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History of the Ok Tedi porphyry copper prospect, Papua New …
The Ok Tedi porphyry copper-gold deposit in western Papua New Guinea was discovered and tested by a subsidiary of Kennecott Copper Corporation in 1968-1971. Exploration lapsed in …
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Worldwide distribution of porphyry Cu deposits. Note, most of the
Porphyry deposits supply most of the world's Cu and Mo resources. Over 90% of the porphyry deposits are found at convergent margins, especially above active subduction zones, with much fewer ...
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Magmatic and hydrothermal evolution of the Skouries Au-Cu porphyry
Magmatic fluids derived from shallow intrusions of typically porphyritic intermediate to felsic magmas can form giant Cu-Mo/Au-rich ore deposits with relatively low-grade metal contents (Seedorff et al., 2005, Sillitoe, 2010).The metal enrichments form due to the release of large volumes of hydrous fluids from magmas typically associated with active subduction …
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Trace element remobilization at the Ok Tedi porphyry Cu-Au deposit
The Ok Tedi Complex hosts a world-class porphyry copper-gold deposit. Samples from the Ok Tedi Complex and the neighbouring Mount Ian Complex were analyzed for major and trace elements using XRF and HR-ICP-MS, and the isotopic composition of S in
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Porphyry copper deposits in China | Request PDF
Porphyry Cu deposits in China contain a total resource of ~47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most <0.5% Cu), accounting for 42% of China's Cu reserves.
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GRADE DISTRIBUTION OF THE GIANT OK TEDI Cu-Au …
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for …
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The role of porphyry-related skarns in the Chating porphyry copper and
Porphyry and associated skarn deposits supply most of the world's Cu, Au and Mo and generally occur together when the wall rocks include limestone, sandstone, and calcareous volcanic rocks (Sillitoe, 2010, Meinert et al., 2005).Both skarn and porphyry alteration and mineralization can contribute to the metal resource, for example, the Ertsberg–Grasberg …
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Deposit Portal
The Ok Tedi porphyry and skarn copper-gold deposits on Mount Fubilan (2053 mASL) are located in the Star Mountains of far western Papua New Guinea, 18 km east of the Indonesian border. …
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Trace element remobilization at the Ok Tedi porphyry Cu-Au …
Its resources are 854 Mt at 0.64 wt% Cu and 0.78 g/t Au, and pro-duction was 2.86 Mt Cu and 706 t Au until 2003. This study provides a detailed geological and geochemical framework for …
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SCIENTIFIC COMMUNICATIONS
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the …
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Copper Deposits and Applications to Exploration
Total resources for purposes of these appraisal estimates include currently minable resources (reserves) as well as those resources not yet discovered or not currently profitable to mine. The mining of mineral deposits, once discovered, depends on geologic, economic, and technologic factors; however, identification of many deposits yet
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Wafi-Golpu Gold and Copper Project, Papua New Guinea
The outcropping deposit lies less than 1km to the south of the Golpu porphyry deposit area and hosts high-sulphidation epithermal mineralisation. Wafi-Golpu project reserves. The Golpu deposit is estimated to contain indicated and inferred resources of 823.8 million tonne (Mt) graded at 0.70g/t gold, 1.25g/t silver and 1.05% copper.
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Gold endowments of porphyry deposits controlled by
ARTICLE Gold endowments of porphyry deposits controlled by precipitation efficiency Massimo Chiaradia1* Porphyry deposits are natural suppliers of most copper and significant gold to our society.
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Grade distribution of the giant Ok Tedi Cu-Au deposit, Papau …
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for …
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History of the Ok Tedi porphyry copper prospect, Papua New …
The Ok Tedi porphyry copper-gold deposit in western Papua New Guinea was discovered and tested by a subsidiary of Kennecott Copper Corporation in 1968-1971. Exploration lapsed in 1972-1975 while Kennecott and the government of Papua New Guinea sought agreement on terms which would apply to any future mining operation.
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Porphyry and epithermal mineral deposits | U.S. Geological Survey
Porphyry and epithermal mineral deposits form large economic ore bodies that provide the global economy with copper, molybdenum, gold, silver and other byproducts (Re, Te, Se). They form in the upper crust and are related to sulfur- and water-rich intermediate to silicic magmatic sources of hydrothermal fluids that move upward and produce extensive hydrolytic …
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Figure 1 from GRADE DISTRIBUTION OF THE GIANT OK TEDI Cu-Au DEPOSIT
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources.
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SCIENTIFIC COMMUNICATIONS
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources. Two composite felsic stocks intruded a tectonostratigraphic sequence of clastic
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Recycling of Proterozoic crust in Pleistocene juvenile magma and rapid
The Ok Tedi deposit is one of the world's largest gold-rich porphyry copper deposits (PCDs) (Cooke et al., 2005). The Fubilan Monzonite Porphyry (FMP), which is the host to a large part of the Cu–Au mineralisation at Ok Tedi, is part of the larger calc-alkaline Ok Tedi Intrusive Complex (OTIC), which consists mainly of equigranular monzodiorite.
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Grade distribution of the Giant Ok Tedi Cu-Au deposit
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its premining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 ...
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[PDF] GRADE DISTRIBUTION OF THE GIANT OK …
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz …
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Uplift and submarine formation of some Melanesian porphyry …
Hydrogen and oxygen isotope analyses of sericites and kaolinites from four young porphyry copper deposits (Ok Tedi (1.2 Ma) and Yandera (6.5 Ma), Papua New Guinea; Koloula (1.5 Ma), Solomon Islands; and Waisoi (<5 Ma), Fiji) indicate that the fluids from which these minerals precipitated were of mixed magmatic and non-magmatic sources.
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(PDF) Quantitative mineral resource assessment of …
World production and reserve base from Edelstein (2007); United States total resources (all copper deposit types) from Ludington, Cox, and McCammon (1996), U.S. Geological Survey National Mineral ...
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Porphyry copper deposits in China
Porphyry Cu deposits in China contain a total resource of ∼47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most Approximately 50% of the giant and ∼35% of the intermediate porphyry Cu deposits in China formed in arc settings. The Xiongcun, Pulang, Duobuza, Bolong, and Naruo deposits in Tibet formed in continental arc settings, and the …
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2017 MINERAL RESOURCES AND ORE STATEMENT
Mineral Resources have been estimated for four deposits in the Frieda River Copper/Gold project: the Horse/Ivaal/Trukai (HIT), Koki and Ekwai copper-gold porphyry deposits and the Nena epithermal high-sulphidation copper-gold deposit. During 2016, additional resource drilling and modelling took place on the Koki and Ekwai deposits.
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Porphyry deposits and oxidized magmas
Porphyry deposits are hosts to one of the most important economic mineral associations (Cooke et al., 2005, Halter et al., 2005, Heinrich et al., 2004, Mutschler et al., 2010, Sillitoe, 2010), accounting for ~ 80% Cu and ~ 95% Mo of the world's total reserves.It is also an important resource of Au, Ag, Zn, Sn and W.
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PorterGeo Database
The Frieda River copper and gold project is located in north-western Papua New Guinea, some 120 km NE of Ok Tedi and comprises a number of porphyry type deposits, including Horse …
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The Largest Copper Porphyry Resources
Geology matters…. Although copper has been mined from a variety of mineral deposits, porphyry copper deposits are the most important source for copper, contributing more than 60% of the annual world copper production and approximately 65% of the known total copper resource. Since 1970, more than 95% of the U. S. copper production has been derived from …
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