Porphyry deposits and oxidized magmas
WebOct 13, 2013 · Genesis of hydrous-oxidized parental magmas for porphyry Cu (Mo, Au) deposits in a postcollisional setting: examples from the Sanjiang region, SW China Lei-Luo Xu Jing-Jing Zhu WebApr 13, 2024 · Most known porphyry Cu deposits formed in the Phanerozoic and are exclusively associated with moderately oxidized, sulfur-rich, hydrous arc-related magmas …
Porphyry deposits and oxidized magmas
Did you know?
WebJun 1, 1998 · We predict that the characteristic zonation to sulfur-poor rims of apatite in the Yerington batholith is common in other oxidized, hydrous, calc-alkaline magmas, and can …
WebApr 13, 2024 · Most known porphyry Cu deposits formed in the Phanerozoic and are exclusively associated with moderately oxidized, sulfur-rich, hydrous arc-related magmas … WebJan 1, 2014 · Porphyry copper deposit is a typical product of the oxidized magmas, and the most discovered ores are strongly biased to Cenozoic age (Fig. 2 ). It is interesting to understand the oxidation status of granitic rocks throughout the earth history, particularly of older granitic terrains (early Earth) containing porphyry copper deposits.
WebMar 23, 2024 · Arc volcanics are more oxidized than mid-ocean ridge basalts (MORB), but it is debated whether this is a mantle feature or a result of magmatic evolution. Copper, a sulfur-loving element, has been used to trace the behavior of redox-sensitive sulfur during mantle melting and infer similar redox states of sub-arc and sub-ridge mantle. WebApr 15, 2024 · Porphyry Cu deposits (PCDs) are presently the main source of Cu (~75%) and a substantial source of Au (~20%) around the world [].The ore bodies of PCDs …
WebJan 1, 2014 · Porphyry copper deposit is a typical product of the oxidized magmas, and the most discovered ores are strongly biased to Cenozoic age (Fig. 2 ). It is interesting to …
WebEastern Tianshan hosts a number of porphyry Cu deposits. However, these mainly formed in the Jueluotage Belt, in the middle part of Eastern Tianshan. The Tonggou porphyry Cu … how many work days in a year 2021 australiaWebMar 8, 2024 · Porphyry systems, the most important reserves of Cu and Mo with significant Au, are genetically linked to the emplacement of hydrous and oxidized intermediate to acidic magmas, in response to temporal and geochemical evolution of crust in orogenic terranes. how many work days in each quarterWebMar 1, 2015 · Porphyry Cu- (Mo)- (Au) deposits are essentially magmatic-hydrothermal systems, which are generally initiated by injection of oxidized magmas saturated with … how many work days are in a year 2022WebApr 12, 2024 · The Kighal porphyry Cu deposit, in the Arasbaran magmatic belt (AMB), is hosted by Late Eocene to Oligocene volcanic rocks and Miocene high–K calc–alkaline … how many work days in 2023 so farWebDec 1, 2014 · Guangzhou Institute of Geochemictry, CAS Abstract Essentially all porphyry deposits are closely associated with oxidized magmas at convergent margins. The best oxygen fugacities for... how many work days in february 2023WebThe world’s largest current Cu resource is volcanic arc-hosted, porphyry copper deposits. Whether unusual parental magmas or fortuitous combinations of processes accompanying emplacement of common parental arc magmas (e.g., basalt) is required for ore deposit formation, remains unclear. Spatial and tectonic associations of adakite (andesite with … how many work days in a federal work yearWebMar 1, 2015 · Linkage between oxidized magmas and porphyry deposits 3.2.1. Sulfur oxidation, sulfide under saturation and residual sulfide. Copper, Au and Mo are all chalcophile elements,... 3.2.2. Sulfate reduction. At oxygen fugacities higher than ΔFMQ + … how many work days in 2021