Oxygen thermobarometry of abyssal spinel peridotites: the redox state and C-O-H volatile composition of the Earth's sub-oceanic upper mantle

L. T. Bryndzia; B. J. Wood

Oxygen thermobarometry of abyssal spinel peridotites: the redox state and C-O-H volatile composition of the Earth's sub-oceanic upper mantle

L. T. Bryndzia, B. J. Wood

Research output: Contribution to journal › Article › peer-review

Abstract

We have applied the spinel peridotite oxygen barometer to abyssal spinel peridotites from the mid-Atlantic, central Indian, southwest Indian and American-Antarctic ocean ridge systems. The results indicate that the oxygen fugacity (f_O2) of the suboceanic mantle is on average 0.9 ± 0.7 (n = 33; ± 1sd) log units below the Fayalite-Magnetite-Quartz (FMQ) f_O2 buffer. Suboceanic mantle is more reduced than the subcontinental mantle. -from Authors

Original language	English
Pages (from-to)	1093-1116
Number of pages	24
Journal	American Journal of Science
Volume	290
Issue number	10
Publication status	Published - 1990

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title = "Oxygen thermobarometry of abyssal spinel peridotites: the redox state and C-O-H volatile composition of the Earth's sub-oceanic upper mantle",

abstract = "We have applied the spinel peridotite oxygen barometer to abyssal spinel peridotites from the mid-Atlantic, central Indian, southwest Indian and American-Antarctic ocean ridge systems. The results indicate that the oxygen fugacity (fO2) of the suboceanic mantle is on average 0.9 ± 0.7 (n = 33; ± 1sd) log units below the Fayalite-Magnetite-Quartz (FMQ) fO2 buffer. Suboceanic mantle is more reduced than the subcontinental mantle. -from Authors",

author = "Bryndzia, {L. T.} and Wood, {B. J.}",

year = "1990",

language = "English",

volume = "290",

pages = "1093--1116",

journal = "American Journal of Science",

issn = "0002-9599",

publisher = "Yale University",

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AU - Bryndzia, L. T.

AU - Wood, B. J.

PY - 1990

Y1 - 1990

N2 - We have applied the spinel peridotite oxygen barometer to abyssal spinel peridotites from the mid-Atlantic, central Indian, southwest Indian and American-Antarctic ocean ridge systems. The results indicate that the oxygen fugacity (fO2) of the suboceanic mantle is on average 0.9 ± 0.7 (n = 33; ± 1sd) log units below the Fayalite-Magnetite-Quartz (FMQ) fO2 buffer. Suboceanic mantle is more reduced than the subcontinental mantle. -from Authors

AB - We have applied the spinel peridotite oxygen barometer to abyssal spinel peridotites from the mid-Atlantic, central Indian, southwest Indian and American-Antarctic ocean ridge systems. The results indicate that the oxygen fugacity (fO2) of the suboceanic mantle is on average 0.9 ± 0.7 (n = 33; ± 1sd) log units below the Fayalite-Magnetite-Quartz (FMQ) fO2 buffer. Suboceanic mantle is more reduced than the subcontinental mantle. -from Authors

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M3 - Article

AN - SCOPUS:0025523388

SN - 0002-9599

VL - 290

SP - 1093

EP - 1116

JO - American Journal of Science

JF - American Journal of Science

IS - 10

ER -

Oxygen thermobarometry of abyssal spinel peridotites: the redox state and C-O-H volatile composition of the Earth's sub-oceanic upper mantle

Abstract

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