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The solubility and oxidation state of tungsten in silicate melts: Implications for the comparative chemistry of W and Mo in planetary differentiation processes

Date

Authors

O'Neill, Hugh

Berry, Andrew

Eggins, Stephen

Publisher

Elsevier

Abstract

The solubility of W in 18 melt compositions in the system CaO-MgO-Al2O3-SiO2 in equilibrium with W metal was determined as a function of oxygen fugacity (fO2) at 1400 °C and atmospheric pressure, using CO-CO2 and H2-CO2 gas mixtures to control fO2. Samp

Keywords

Keywords: electron probe analysis; fugacity; inductively coupled plasma method; isotopic composition; isotopic fractionation; magmatic differentiation; molybdenum; oxidation; partial melting; partition coefficient; silicate melt; solubility; thermodynamics; tungste Oxidation states; Partition coefficients; Silicate melts; Thermodynamics; Tungsten; XANES spectroscopy

URI

http://hdl.handle.net/1885/51095

Collections

ANU Research Publications

Source

Chemical Geology

Type

Journal article

DOI

10.1016/j.chemgeo.2008.07.005

Restricted until

2037-12-31

Downloads

File

Description

01_O'Neill_The_solubility_and_oxidation_2008.pdf (884.69 KB)