Porphyry copper deposits ppt
WebThe palladium telluride, merenskyite, has been described as the main PGE mineral in porphyry Cu–Au–Pd–Pt deposits, such as Skouries, Santo Tomas II, Biga, Elatsite, … WebDepartment of Earth and Planetary Sciences - McGill University
Porphyry copper deposits ppt
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WebTops of porphyry copper deposits Guinaoang porphyry copper-gold system, Philippines Discovered 1983, RGC Exploration gt500 Mt _at_ 0.4 Cu, 0.4 g/t Au Deposit concealed … WebMay 28, 2014 · These deposits provide over 60% of the world’s copper and include other important metals such as molybdenum, gold and silver. Porphyry copper deposits are known for their low grades and very high tonnage. A porphyry is not a rock type, but rock with a particular texture. This porphyritic rock has large feldspar crystals in a finer grained …
WebCopper, Nickel, Lead, And Zinc Mining Global Market Report 2024 - The global copper, nickel, lead and zinc mining market was valued at around $140 billion in 2024. Asia Pacific was the largest region in the copper, nickel, lead, and zinc mining market in 2024, accounting for more than 50% market share. PowerPoint PPT presentation free to view Web第八章火山成因矿床.ppt,* （3）流纹岩-安山岩型—流纹岩-安山岩建造中的菱铁矿矿床，如加拿大海伦铁山菱铁矿矿床。 （4）基性、中性火山岩型—基性、中性火山岩建造中的赤铁矿-磁铁矿矿床，如新疆谢尔塔拉铁矿床。 第三十页，共六十七页。
WebValencia-Moreno, M., Ochoa-Landín, Lucas, Noguez-Alcántara, Benito, Ruiz, Joaquin, Pérez-Segura, Efrén, 2007, Geological and metallogenetic characteristics of the porphyry copper deposits of México and their situation in the world context, in Alaniz-Álvarez, S.A., and Nieto-Samaniego, Á.F., eds., Geology of México Celebrating the ... WebApr 1, 1998 · Models which reconcile isotopic variation, systematic REE behavior, protracted local but largely noncomagmatic magmatism and the increasing development of porphyry mineralization include: (1) progressive metasomatism of the crustal component, (2) increasing assimilation of amphibolitic crust by mantle basalts, and (3) migration of …
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WebOur new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to … dallas county hhs logoWebJan 18, 2024 · 1.1.8 Porphyry copper (Mo-Au-Sn-W) depositsPorphyry ore deposits are products of magmatic-hydrothermal activity at shallow crustal levels. Primarily copper, but also molybdenum, tin, tungsten and gold occur closely related to epizonal intrusions of porphyric magmatic rocks.Porphyries contain phenocrysts of hornblende, biotite, feldspar … dallas county hhwdallas county hmisWebNov 6, 2011 · Soon led to discovery of nearby Lobo porphyry gold deposit by same j.v. Combined: 5.5 Moz Au Wafi, Papua new Guinea Discovered 1990, CRA Exploration Hypogene copper enrichment due to high-sulphidation copper sulphides at base of lithocap overprinting porphyry copper-gold deposit. District-scale porphyry copper alignments and … birchall brothers racingWebAug 18, 2011 · 6. Porphyry Copper Deposit A large low- to medium-grade deposit, of primarily of pyrite, chalcopyrite and molybdenite with characteristic concentric zoning of … birchall catering suppliesWebDecreasing Temperature – the Main Control on Porphyry Copper Ore Formation (Landtwing et al., 2005) Copper concentrations in fluuid inclusions of the Bingham porphyry, USA Cu-Mo Zoning in Porphyry Systems Porphyry Cu-Mo deposits are commonly zoned with a deeper, higher temperature molybdenite-rich zone and a shallower, lower temperature … dallas county help with utilitiesWebJan 1, 2024 · Much of the world's economic copper resources are hosted in porphyry copper deposits (PCDs), shallow level magmatic intrusions associated mostly with thick (> 45 … birchall coat of arms