Results 81 to 90 of about 1,213,951 (200)
The pressure medium as a solid-state oxygen buffer [PDF]
, 1999 We present a simple method to buffer oxygen fugacity at high pressures and high temperatures where the traditional 'double capsule' method is inappropriate. The pressure medium is doped with a metal which partially reacts with the free oxygen in the pore
Dobson, DP +3 more
core +1 more source
Geologica Carpathica, 2015 The Tribeč granitic core (Tatric Superunit, Western Carpathians, Slovakia) is formed by Devonian/Lower Carboniferous, calc-alkaline I- and S-type granitic rocks and their altered equivalents, which provide a rare opportunity to study the Variscan ...
Broska Igor, Petrík Igor
doaj +1 more source
, 2017 The deep carbon cycle and the origin of carbonatitic melts into the Earth’s mantle have been studied through the effect of CO2 on phase equilibria within carbonated eclogitic assemblage in the last decades. However the effect of temperature (T), pressure
Vincenzo Stagno, Marco Caruso
core
APG2: a New Version of APG, an Application for Amphibole-Plagioclase Geothermobarometry [PDF]
Journal of Sciences, Islamic Republic of Iran, 2016 APG2 is a computer application designed for amphibole-plagioclase geothermobarometry. It is the first updated version of APG and supports 4 thermometer models and 6 barometer models involving either amphibole-plagioclase or amphibole only.
M. Sayari
doaj
Oxygen Fugacity of Global Ocean Island Basalts
Geochemistry, Geophysics, GeosystemsAbstractMantle plumes contain heterogenous chemical components and sample variable depths of the mantle, enabling glimpses into the compositional structure of Earth's interior. In this study, we evaluated ocean island basalts (OIB) from nine plume locations to provide a global and systematic assessment of the relationship between fO2 and He‐Sr‐Nd‐Pb‐W ...
Lori N. Willhite +10 more
openaire +2 more sources
Melting at the base of a terrestrial magma ocean controlled by oxygen fugacity
Heat delivered from accretionary impacts is thought to have led to extensive melting of early Earth’s silicate mantle, resulting in a deep magma ocean covering the surface. The mantle’s oxygen fugacity is thought to have increased over accretion and core
van Westrenen, Wim; id_orcid +4 more
core +1 more source
This data set comprises raw data for FTIR analysis of diopside aggregates under anhydrous conditions, and raw deformation data of anhydrousdiopside aggregates deformed at confining pressures of ~300 MPa and temperatures of 1423–1523 K in a Paterson gas ...
Li, Jianfeng
core +1 more source
LifeThe ubiquitous, evolutionarily oldest RNAs and proteins exclusively use rather rare zinc as transition metal cofactor and potassium as alkali metal cofactor, which implies their abundance in the habitats of the first organisms.
Armen Y. Mulkidjanian +2 more
doaj +1 more source
Temporal evolution of mantle wedge oxygen fugacity during subduction initiation
, 2015 Arc basalts have a higher proportion of Fe in an oxidized state (Fe^(3+)) relative to Fe^(2+) compared to mid-oceanic ridge basalts (MORBs), likely because slab-derived fluids oxidize the mantle wedge where subduction zone magmas originate. Yet, the time
Kelley, Katherine A. +3 more
core +1 more source
TRANSPARENT CONDUCTING OXIDE SYNTHESIS OF ALUMINIUM DOPED ZINC OXIDES BY CHEMICAL COPRECIPITATION
Avances en Ciencias e Ingeniería, 2013 Aluminium doped zinc oxides (AZO) are promising replacements for tin doped indium oxides (ITO) but thin films show a wide range of physical properties strongly dependent on deposition process conditions.
Silvia Maioco +3 more
doaj