Constraints on oxygen fugacity within metal capsules
Sign Up to like & getrecommendations! Published in 2017 at "Physics and Chemistry of Minerals"
DOI: 10.1007/s00269-017-0937-7
Abstract: Experiments were conducted with olivine encapsulated or wrapped in five different metals (Pt, Ni, $$\hbox {Ni}_{70}\hbox {Fe}_{30}$$Ni70Fe30, Fe, and Re) to determine the oxygen fugacity in the interior of large capsules used for deformation and… read more here.
Keywords: hbox hbox; hbox fo2; metal; oxygen fugacity ... See more keywords
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
Tracking the oxygen fugacity of enclave-forming granitic melts through plagioclase trace element signatures
Sign Up to like & getrecommendations! Published in 2020 at "Contributions to Mineralogy and Petrology"
DOI: 10.1007/s00410-020-01702-3
Abstract: Magma mixing and contamination are among the dominant processes in the building of the isotopic diversity of granite rocks. Felsic microgranular enclaves (FMEs) are remnants of magma mixing and they often carry xenocrysts that also… read more here.
Keywords: plagioclase trace; chemistry; oxygen fugacity; trace element ... 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
The effect of oxygen fugacity and Na/(Na+K) ratio on iron speciation in pantelleritic glasses
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2017.09.051
Abstract: Abstract Reduction experiments were conducted to study the structural role (redox state and coordination) of iron in peralkaline rhyolitic glasses as a function of oxygen fugacity and alkali atomic ratio ([Na/(Na+K)] = 0.0, 0.69 and 1.0). The… read more here.
Keywords: coordination; ratio; oxygen fugacity; ratio iron ... See more keywords
Geochronology of early Mesozoic diabase units in southwestern China: metallogenic and tectonic implications
Sign Up to like & getrecommendations! Published in 2018 at "Geological Magazine"
DOI: 10.1017/s0016756818000493
Abstract: Abstract Two phases of diabase-sill-forming magmatism are recorded within the Badu anticline where magmas were emplaced into upper Palaeozoic carbonates and clastic rocks of the Youjiang fold-and-thrust belt in the SW South China Block, China.… read more here.
Keywords: early mesozoic; diabase units; oxygen fugacity; diabase ... See more keywords
Ferric-ferrous iron ratios of experimental majoritic garnet and clinopyroxene as a function of oxygen fugacity
Sign Up to like & getrecommendations! Published in 2020 at "American Mineralogist"
DOI: 10.2138/am-2020-7265
Abstract: Abstract The oxidation state of iron in upper mantle minerals is widely used to constrain the Earth mantle’s oxidation state. Previous studies showed high levels of ferric iron in high-pressure majoritic garnets and pyroxenes despite… read more here.
Keywords: oxygen; ferric iron; oxidation state; oxygen fugacity ... See more keywords
A new method to quantitatively control oxygen fugacity in externally heated pressure vessel experiments
Sign Up to like & getrecommendations! Published in 2020 at "European Journal of Mineralogy"
DOI: 10.5194/ejm-32-219-2020
Abstract: Abstract. Oxygen fugacity (fO2) is a fundamental variable affecting phase equilibrium in magmas, and in externally heated pressure vessel experiments it is typically controlled by using redox buffer assemblages. However, these do not allow fine… read more here.
Keywords: pressure vessel; heated pressure; oxygen fugacity; externally heated ... See more keywords