Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-13T09:24:28.330Z Has data issue: false hasContentIssue false

Geothermometry and oxygen barometry using coexisting iron-titanium oxides: a reappraisal

Published online by Cambridge University Press:  05 July 2018

Roger Powell
Affiliation:
Department of Earth Sciences, University of Leeds, Leeds LS2 9JT
Marjorie Powell
Affiliation:
Department of Earth Sciences, University of Leeds, Leeds LS2 9JT

Summary

Equilibrium thermodynamic methods are used to develop an independent iron-titanium oxide geothermometer and oxygen barometer from the experimental data of Buddington and Lindsley (1964). The geothermometer and oxygen barometer are presented graphically for coexisting ilmenite solid solution and magnetite solid solution in the system FeO-Fe2O3-TiO2. Equations are also given for calculating temperature and oxygen activity for natural coexisting iron-titanium oxides containing other components. Large departures in composition from the system FeO-Fe2O3-TiO3 result in large uncertainties in the calculated temperature and activity of oxygen.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderson, (A. T.), 1968. Am. J. Sci. 266, 704.27.CrossRefGoogle Scholar
Buddington, (A. F.) and Lindslcy, (D. H.), 1964. J. Petrol. 5, 310–57.CrossRefGoogle Scholar
Carmichael, (I. S. E.), 1967. Contrib. Mineral. Petrol. 14, 36–64.CrossRefGoogle Scholar
Huebner, (J. S.) and Sato, (M.), 1970. Am. Mineral. 55, 934.53.Google Scholar
Johnson, (R. E.), Woermann, (E.), and Muan, (A.), 1971. Am. J. Sci. 271, 278–92.CrossRefGoogle Scholar
Katsura, (T.), Wakihara, (M.), Hara, (D.), and Sugihara, (T.) 1975. J. Solid State Client. 13, 107–13.CrossRefGoogle Scholar
Kerrick, (D. M.) and Darken, (L. S.), 1975. Geochim. cosmochim. Acta, 39, 1431–42.CrossRefGoogle Scholar
Stull, (D. R.) and Prophet, (J.), 1971. JANAF Thermochemical Tables, Nat. Stand. Ref. Data Ser., Nat. Bur. Stand. (U.S.), 37, H4ip.Google Scholar
Wass, (S. Y.), 1973. J. Geol. Soc. Austr. 20, 427–47.CrossRefGoogle Scholar
Wones, (D. R.) and Gilbert, (M. C), 1969. Am. J. Sci. 276A, 480-8.Google Scholar