Equilibration temperatures in enstatite chondrites

John W. Larimer; P R Buseck

doi:10.1016/0016-7037(74)90138-0

Equilibration temperatures in enstatite chondrites

John W. Larimer, P R Buseck

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Abstract

Equilibration temperatures for enstatite chondrites are calculated using a method suggested by Larimer (1968). The temperatures range from 640° to 840°C. The method yields temperatures which, in principle, are correct on a relative scale but the absolute error may be a large as 150°. There is a good correlation between the calculated temperatures and petrologic type as well as other mineralogic characteristics and bulk composition. Partial pressures of sulfur and oxygen at the time of equilibration were: pS₂ ~ 10^-8-10^-12 atm and pO₂ ~ 10^-28-10^-37.

Original language	English (US)
Pages (from-to)	471-477
Number of pages	7
Journal	Geochimica et Cosmochimica Acta
Volume	38
Issue number	3
DOIs	https://doi.org/10.1016/0016-7037(74)90138-0
State	Published - Mar 1974

ASJC Scopus subject areas

Geochemistry and Petrology

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10.1016/0016-7037(74)90138-0

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title = "Equilibration temperatures in enstatite chondrites",

abstract = "Equilibration temperatures for enstatite chondrites are calculated using a method suggested by Larimer (1968). The temperatures range from 640° to 840°C. The method yields temperatures which, in principle, are correct on a relative scale but the absolute error may be a large as 150°. There is a good correlation between the calculated temperatures and petrologic type as well as other mineralogic characteristics and bulk composition. Partial pressures of sulfur and oxygen at the time of equilibration were: pS2 ~ 10-8-10-12 atm and pO2 ~ 10-28-10-37.",

author = "Larimer, {John W.} and Buseck, {P R}",

note = "Funding Information: Ack~owZedgemer&s---Thiws ork was supported in part by NASA Grant NGL-03-001-001 and National Science Foundation Grants GA-32297 and GA-26791. We acknowledge Dr. R. 5. West helpful comments on an earlier version of the mamrscript and JOYCE STEINER for help in preparing the manuscript.",

year = "1974",

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doi = "10.1016/0016-7037(74)90138-0",

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T1 - Equilibration temperatures in enstatite chondrites

AU - Larimer, John W.

AU - Buseck, P R

N1 - Funding Information: Ack~owZedgemer&s---Thiws ork was supported in part by NASA Grant NGL-03-001-001 and National Science Foundation Grants GA-32297 and GA-26791. We acknowledge Dr. R. 5. West helpful comments on an earlier version of the mamrscript and JOYCE STEINER for help in preparing the manuscript.

PY - 1974/3

Y1 - 1974/3

N2 - Equilibration temperatures for enstatite chondrites are calculated using a method suggested by Larimer (1968). The temperatures range from 640° to 840°C. The method yields temperatures which, in principle, are correct on a relative scale but the absolute error may be a large as 150°. There is a good correlation between the calculated temperatures and petrologic type as well as other mineralogic characteristics and bulk composition. Partial pressures of sulfur and oxygen at the time of equilibration were: pS2 ~ 10-8-10-12 atm and pO2 ~ 10-28-10-37.

AB - Equilibration temperatures for enstatite chondrites are calculated using a method suggested by Larimer (1968). The temperatures range from 640° to 840°C. The method yields temperatures which, in principle, are correct on a relative scale but the absolute error may be a large as 150°. There is a good correlation between the calculated temperatures and petrologic type as well as other mineralogic characteristics and bulk composition. Partial pressures of sulfur and oxygen at the time of equilibration were: pS2 ~ 10-8-10-12 atm and pO2 ~ 10-28-10-37.

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M3 - Article

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JO - Geochimica et Cosmochimica Acta

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Equilibration temperatures in enstatite chondrites

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