Porphyry gold
WebJan 1, 2005 · The Fort Knox "porphyry" gold deposit-structurally controlled stockwork and shear quartz vein, sulfide poor mineralization hosted by a late Cretaceous pluton, east-central Alaska Article Jan 1995 WebApr 5, 2024 · The Company's key exploration assets, both in B.C., are the Rabbit North copper-gold porphyry project located between the New Afton copper-gold and Highland Valley copper mines in the Kamloops ...
Porphyry gold
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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, respectively. The zone of advanced argillic alteration is located ~400 m from the outcropping La Arena Cu-Au porphyry, with gold-mineralized advanced argillic WebJul 15, 2024 · Gold to silver ratio is much lower in alkaline porphyry systems than in alkaline epithermal systems. Alteration includes potassium, sodium, propylitic, and magnetite …
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. … WebPorphyry deposits represent an important resource of copper; however, they are also important sources of gold and molybdenum – with porphyry deposits being the dominant …
Web2 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 … WebSep 13, 2013 · Epithermal and Porphyry Gold – Geological Models. Pacrim 2004, Adelaide, Australia, Australasian Institute of Mining and Metallurgy Bulletin 5/2004. OTHER …
WebOct 17, 2024 · Porphyry-type deposits provide most of the world's copper and molybdenum, as well as large amounts of gold and other metals, which are of increasing demand for green technologies such as electric ...
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 chemo hair wrapsWebMay 28, 2014 · Porphyry copper deposits play an important role in the global economy. These deposits provide over 60% of the world’s copper and include other important … flightreacts height and weightWebporphyry gold See PORPHYRY DEPOSIT. A Dictionary of Earth Sciences. Lawrence H. Officer The gold standard is a monetary standard that ties a unit of currency, or money, to a … chemo hallucinationsWebCarosue Dam Operations (CDO) includes the Carosue Dam Project, the Porphyry Project, and the Deep South Project.Northern Star acquired the original CDO assets in 2006 and … flight reacts height weightWebAug 2, 2024 · All that changed in September 2024 when Alkane announced the results of diamond core drill hole (KSDD003) at the Boda Prospect within its Northern Molong Porphyry Project. That diamond core drill hole was testing a zone 200m beneath a zone of gold mineralization previously defined in RC drilling (311m @ 0.28g/t Au from 19m to EOH … chemo hamperWebSkouries 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. flight reacts iqWebOct 1, 2011 · This paper describes the ZTEM airborne EM and magnetic results over the porphyry copper-gold camp at Cobre Panama, with a focus on the discovery of the blind Balboa deposit in 2010, the first … Expand. 3. PDF. View 2 … flightreacts high face