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The assemblage WO2 + H2O as a steady-state hydrogen source in moderately reduced hydrothermal experiments

American Mineralogist

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Abstract

The values of fH2 for the assemblage WO2 + WO2.72 + H2O (designated as WO) have been measured in sealed Au capsules under an external pressure of 2 kbar CH4 and between 650 and 800??C using Ag-AgBr-HBr sensors of fH2. The fH2 values obtained can be represented by the equation log(fWOH2)2kbar,T(??0.06) = (-1924.9 ??(T,K) + 4.06 and are found to be slightly greater than those associated with the previously calibrated C-CH4 buffer. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The assemblage WO2 + H2O as a steady-state hydrogen source in moderately reduced hydrothermal experiments
Series title:
American Mineralogist
Volume
75
Issue:
11-12
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1399
Last page:
1405
Number of Pages:
7