Plate subduction, oxygen fugacity, and mineralization
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Oceanology and Limnology"
DOI: 10.1007/s00343-019-8339-y
Abstract: Plate subduction is the largest natural factory that processes elements, which controls recycling and mineralization of a variety of elements. There are three major ore deposit belts in the world: the circum-Pacific, the central Asian,… read more here.
Keywords: plate subduction; porphyry deposits; subduction; oxygen fugacity ... See more keywords
Oxygen fugacity and porphyry mineralization: A zircon perspective of Dexing porphyry Cu deposit, China
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.03.013
Abstract: Abstract Oxygen fugacity ( f O 2 ) is a key factor that controls the formation of porphyry Cu deposits. Porphyry Cu deposits are typically oxidized, but when and how porphyry magmas gain their high… read more here.
Keywords: fugacity; porphyry deposits; porphyry mineralization; oxygen fugacity ... See more keywords
Magmatic oxygen fugacities of porphyry Mo deposits in the East Xing’an-Mongolian Orogenic Belt (NE China) with metallogenic implications
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2018.04.004
Abstract: Abstract The East Xing’an–Mongolian Orogenic Belt (EXOB) in China hosts numerous porphyry Mo deposits that are associated with calc-alkaline granitic intrusions. Here we report the trace-element compositions of zircon grains from 11 intrusions collected from… read more here.
Keywords: belt; mongolian orogenic; orogenic belt; xing mongolian ... See more keywords
Late Triassic E-MORB-like basalts associated with porphyry Cu-deposits in the southern Yidun continental arc, eastern Tibet: Evidence of slab-tear during subduction?
Sign Up to like & getrecommendations! Published in 2017 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2016.12.006
Abstract: Abstract It is generally believed that andesite–dacite–rhyolite suites and contemporary porphyry Cu deposits are related to subduction in active continental margin settings. However, it is still unclear which tectonic events result in the generation of… read more here.
Keywords: subduction; late triassic; associated porphyry; porphyry deposits ... See more keywords
Flat-slab subduction and formation of “intraplate” porphyry deposits: Insights from the Jurassic high and low La/Yb ore-forming porphyries along the Qin-Hang belt, South China
Sign Up to like & getrecommendations! Published in 2020 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2020.103574
Abstract: Abstract The Middle-Late Jurassic porphyry deposits with different element associations in the interior of South China Block are over 1000 km away from subduction zone, which conflicts with the traditional belief that the porphyry Cu-Au-Mo deposits… read more here.
Keywords: slab subduction; porphyry; magma; porphyry deposits ... See more keywords
Inherited source affinity of Li and Hf isotopes for porphyry copper deposits from subduction and collisional settings
Sign Up to like & getrecommendations! Published in 2021 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2021.104328
Abstract: Abstract Porphyry Cu deposits can be classified at the global scale as oceanic subduction- and continental collision-types based on their tectonomagmatic settings. In order to further characterize the possible differences in the geochemical and isotopic… read more here.
Keywords: porphyry deposit; collisional settings; porphyry; source ... See more keywords
Magmatic Water Content and Crustal Evolution Control on Porphyry Systems: Insights from the Central Asian Orogenic Belt
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DOI: 10.1093/petrology/egab021
Abstract: 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… read more here.
Keywords: water; crust; porphyry; evolution ... See more keywords
Recycling of metal-fertilized lower continental crust: Origin of non-arc Au-rich porphyry deposits at cratonic edges
Sign Up to like & getrecommendations! Published in 2017 at "Geology"
DOI: 10.1130/g38619.1
Abstract: Recent studies argue that subduction-modified, Cu-fertilized lithosphere controls the formation of porphyry Cu deposits in orogenic belts. However, it is unclear if and how this fertilization process operates at cratonic edges, where numerous large non-arc… read more here.
Keywords: rich porphyry; porphyry; arc; cratonic edges ... See more keywords
Magnetite as an Indicator Mineral in the Exploration of Porphyry Deposits: A Case Study in Till near the Mount Polley Cu-Au Deposit, British Columbia, Canada
Sign Up to like & getrecommendations! Published in 2017 at "Economic Geology"
DOI: 10.2113/econgeo.112.4.919
Abstract: The investigation of this paper focused on whether the composition of hydrothermal ore-related magnetite in till could be used to locate porphyry deposits in terrane where glacial overburden overlies rocks that host porphyry Cu-Au mineralization.… read more here.
Keywords: till; porphyry; deposit; mount polley ... See more keywords
Controlling Mechanisms for Molybdenum Isotope Fractionation in Porphyry Deposits: The Qulong Example
Sign Up to like & getrecommendations! Published in 2019 at "Economic Geology"
DOI: 10.5382/econgeo.4653
Abstract: Molybdenite-bearing porphyry deposits are the predominant supplier of molybdenum to industrialized society and one of the main hosts of Mo in the upper continental crust. The Mo isotope compositions (δ98/95Mo, normalized to NIST3134 equals 0‰)… read more here.
Keywords: isotope fractionation; molybdenum isotope; fractionation; fluid ... See more keywords