Porphyry gold
WebNov 16, 2024 · Freeport-McMoRan’s (NYSE: FCX) Grasberg copper-gold porphyry mine in Indonesia is the world’s largest gold mine and one of the world’s largest copper mines. In … WebMay 4, 2024 · Porphyry copper deposits are among the world’s most valuable deposits. ... Silver grades range from 0.004 to 0.35 grams per tonne, and gold grades range from 0.2 …
Porphyry gold
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Metal endowments, rock geochemistry (Sr/Y values, magma affinity in terms of alkalinity) and geochronological data of 118 porphyry Cu–Au deposits (Supplementary Data 1) have been collected from previous studies and from online resources (USGS Porphyry Copper deposits of the world at … See more Monte Carlo modelling of petrologic processes (Methods and Table 1) has been applied to extract information on metallogenic … See more The plot of Au vs. Cu endowments shows that porphyry Cu–Au deposits define either a Cu-rich (Au/Cu ~4 × 10−6) or an Au-rich (Au/Cu ~80 × 10−6) trend (Fig. 1a). The Au-rich trend is essentially controlled by the seven largest … See more Monte Carlo simulations show that, assuming a commonly used 50% precipitation efficiency for both Au and Cu, magma volumes (~2000 km3) corresponding to the highest enrichments in copper (~100 Mt … See more Chiaradia and Caricchi2 suggested that the Cu endowment of Andean-type Cu-rich porphyry deposits is controlled by two main parameters: the volume of magma generated at mid-lower crustal depths, which determines the … See more WebSkouries is a gold-copper porphyry deposit centred on a small, ... The porphyry is characterized by at least four intrusive phases that are of monzonite to syenite composition, but contain an intense potassic alteration and related stockwork veining that overprints the original protolith.
Web2.2.3 Fluid pathways. In the porphyry-epithermal mineral system, pathways for fluids and their contained metals, ligands and sulfur include faults, stratigraphic aquifers and crystallising intrusive bodies. Crystallising … Web1 day ago · Drilling has commenced to test extensions to Kaliman porphyry gold-copper and Brecha- Comanche epithermal vein hosted gold mineralisation at the Dynasty Project. Drilling designed to target extensions to significant intersections returned from Titan’s 2024 drilling, with three main targets being tested: Depth extensions to high grade ...
WebMar 26, 2024 · The quartz latite porphyry dome has intrusive and extrusive phases, both having the same mineralogy. The Summitville caldera lies nested within the Platoro caldera, occupying its northern half. Gold mineralization occurs near the surface most strongly disseminated within the zones of silicification, but it also is found in trace amounts in the … Webhigh-sulfidation gold deposit in La Libertad, Peru, where 690 koz Au has been produced since 2011, with proven and probable reserves of 103 Mt at 0.39 to 0.47 g/t Au, …
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WebNov 20, 2024 · The Yao’an gold deposit is located in the middle of the Jinshajiang-Ailaoshan alkali-rich metallogenic belt, and this belt hosts many porphyry-type Cu-Au-Mo deposits … elizabeth tavern saWebThe Cadia porphyry gold–copper district is the largest hydrothermal, intrusion-related gold deposit in eastern Australia. Discovered in 1992 by Newcrest Mining Limited, pre-mine … force release dateWebThe Porphyry Gold Mine is located 150 km north east of Kalgoorlie, Western Australia. Some intermittent mining was undertaken at the site in the 1930's and 40's and in 1984 Pioneer … force reload edge browserWeb2 days ago · HALIFAX, Nova Scotia, April 12, 2024 (GLOBE NEWSWIRE) -- Erdene Resource Development Corporation (TSX: ERD MSE: ERDN) (“Erdene” or the “Company”) is pleased to announce the commencement of drilling at its 100% owned Zuun Mod molybdenum-copper porphyry project in southwest Mongolia, located within the Khundii Minerals District, 35 … elizabeth taxes onlineWebNov 1, 2000 · The porphyry gold deposits of the Refugio district and similar deposits in the Maricunga belt contain the lowest known copper to gold ratios (% Cu/ppm Au = ~0.03) of … elizabeth tavern menuWebJun 1, 2013 · The gold-copper mineralization is centered on a composite diorite to quartz diorite porphyry stock, within which five outward-younging phases are routinely … elizabeth taylor 1234567WebThe largest porphyry deposit in the world is the Escondida mine in Chile. This mine is the largest producer of copper in the world and also produces significant amounts of gold … elizabeth taylor 123456