Results 141 to 150 of about 1,213,951 (200)

A repository-hosted dataset of volcanic ash particle images and features. [PDF]

Sci Data
Benet D, Costa F, Migadel K, Lee DWJ, D'Oriano C, Pompilio M, Nurfiani D, Rifai H.   +7 more
europepmc   +1 more source

Mantle oxidation by sulfur drives the formation of giant gold deposits in subduction zones. [PDF]

Proc Natl Acad Sci U S A
He DY, Qiu KF, Simon AC, Pokrovski GS, Yu HC, Connolly JAD, Li SS, Turner S, Wang QF, Yang MF, Deng J.   +10 more
europepmc   +1 more source

Carbon solubility and liquid-liquid immiscibility in Fe-C-S ternary system up to 6 GPa: implications for the core of small planetary bodies. [PDF]

Prog Earth Planet Sci
Zhao B, Morard G, Manthilake G, Parisiades P, Yang J, Fei Y, Le Godec Y, Kondo N, Yoshino T, Antonangeli D.   +9 more
europepmc   +1 more source

Experimental evidence supporting a long-lived magma layer at the Martian core–mantle boundary

Pierru R, Gréaux S, Dominijanni S, Man L, Kono Y, Kakizawa S, Higo Y, Badro J, Frost D, Antonangeli D.   +9 more
europepmc   +1 more source

Southern Ocean freshening stalls deep ocean CO2 release in a changing climate

Olivier L, Haumann FA.
europepmc   +1 more source

Effect of Oxygen Fugacity and Water on Phase Equilibria of a Hydrous Tholeiitic Basalt

Contributions To Mineralogy and Petrology, 2010
The influence of oxygen fugacity and water on phase equilibria and the link between redox conditions and water activity were investigated experimentally using a primitive tholeiitic basalt composition relevant to the ocean crust.
Jürgen Koepke, Sandrin Tilman Feig, Jonathan Snow   +2 more
exaly   +3 more sources

The Effect of Oxygen Fugacity on Ionic Conductivity in Olivine

Geoscience Frontiers, 2022
Abstract The oxygen fugacity ( f O 2 ) may affect the ionic conductivity of olivine under upper mantle conditions because Mg vacancies can be produced in the crystal structure by the oxidization of iron from Fe2+ to Fe3+. Here we investigated olivine ionic conductivity at 4 GPa, as a function of temperature, crystallographic orientation ...
Tomoo Katsura, Hongzhan Fei
exaly   +2 more sources

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OXYGEN FUGACITY ACROSS TECTONIC SETTINGS

Goldschmidt2022 abstracts, 2020
Experiment and observation have established the centrality of oxygen fugacity (fO2) to determining the course of igneous differentiation, and so the development and application of oxybarometers have proliferated for more than half a century. The compositions of mineral, melt, and vapor phases determine the fO2 that rocks record, and the activity models
Elizabeth Cottrell, Suzanne Birner, Maryjo Brounce, Fred Davis, Laura Waters, Katherine Kelley   +5 more
openaire   +2 more sources

Oxygen Fugacities Directly Measured in Magmatic Gases

Science, 1966
An electrochemical device was used to measure the fugacity of oxygen ( f O 2 ) in holes drilled through the crust of Makaopuhi lava lake, Kilauea Volcano, Hawaii. Results obtained within 6 months of the lake formation show that log f
M, Sato, T L, Wright
openaire   +2 more sources