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EXPERIMENTAL MEASUREMENTS OF THE GRAPHITE C-O EQUILIBRIUM AND CO2 FUGACITIES AT HIGH-TEMPERATURE AND PRESSURE

Abstract:

The f o 2 of the equilibrium between graphite and C-O fluid has been determined from 15-30 kbar and 1100-1400°C using a sliding redox sensor consisting of (Ni, Mn) O+Ni metal. The equilibrium composition of oxide coexisting with metal was approached from both directions in each experiment with convergence to within 1 mol% NiO. Since, in the P-T range of the experiments, C-O fluids are >90% CO2 our measurements of f o 2 translate into determinations of CO2 fugacity with an uncertainty of ±0...

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Publication status:
Published

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Publisher copy:
10.1007/BF02688245
Publisher:
Springer-Verlag
Journal:
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY More from this journal
Volume:
121
Issue:
3
Pages:
303-308
Publication date:
1995-09-01
DOI:
EISSN:
1432-0967
ISSN:
0010-7999
Language:
English
Pubs id:
pubs:163802
UUID:
uuid:68ac1e68-267c-4ddf-8912-944da374941d
Local pid:
pubs:163802
Source identifiers:
163802
Deposit date:
2012-12-19

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