Distribution of sulphides and oxidised sulphur components in SNC meteorites

R. Burgess; I. P. Wright; C. T. Pillinger

doi:10.1016/0012-821X(89)90030-7

Distribution of sulphides and oxidised sulphur components in SNC meteorites

R. Burgess^*, I. P. Wright, C. T. Pillinger

^*Corresponding author for this work

Earth and Environmental Sciences - Academic & Research

The Open University

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

Abstract

Stepped combustion analysis of sulphur-bearing phases in SNC meteorites indicates that sulphates and sulphides are widespread at low abundance in these meteorites. The amount of sulphate sulphur is highest in shergottites: Shergotty (190 ppm) and ALHA 77005 (90 ppm). Nakhla and Chassigny contain lower sulphate sulphur contents (80-85 ppm) compared with shergottites, but their oxidised/reduced sulphur ratios are significantly greater ( ≥ 1.5) which indicates higher net oxidation states. Nakhla and Chassigny also contain elemental sulphur as an additional oxidised component. An origin of the sulphates (and elemental sulphur) by terrestrial weathering processes cannot be completely rejected, but it is considered more likely that the minerals were incorporated into the host rocks as relict grains of weathering or alteration products formed on the surface of the SNC parent body.

Original language	English
Pages (from-to)	314-320
Number of pages	7
Journal	Earth and Planetary Science Letters
Volume	93
Issue number	3-4
DOIs	https://doi.org/10.1016/0012-821X(89)90030-7
Publication status	Published - Jul 1989

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title = "Distribution of sulphides and oxidised sulphur components in SNC meteorites",

abstract = "Stepped combustion analysis of sulphur-bearing phases in SNC meteorites indicates that sulphates and sulphides are widespread at low abundance in these meteorites. The amount of sulphate sulphur is highest in shergottites: Shergotty (190 ppm) and ALHA 77005 (90 ppm). Nakhla and Chassigny contain lower sulphate sulphur contents (80-85 ppm) compared with shergottites, but their oxidised/reduced sulphur ratios are significantly greater ( ≥ 1.5) which indicates higher net oxidation states. Nakhla and Chassigny also contain elemental sulphur as an additional oxidised component. An origin of the sulphates (and elemental sulphur) by terrestrial weathering processes cannot be completely rejected, but it is considered more likely that the minerals were incorporated into the host rocks as relict grains of weathering or alteration products formed on the surface of the SNC parent body.",

author = "R. Burgess and Wright, {I. P.} and Pillinger, {C. T.}",

note = "Funding Information: We are grateful to Dr. R. Hutchison of the British Museum (Natural History) and the Antarctic Meteorite Working Group for provision of samples. We thank J.L. Gooding and H.Y. McSween for their constructive reviews of the manuscript. This research was supported by the S.E.R.C.",

year = "1989",

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doi = "10.1016/0012-821X(89)90030-7",

language = "English",

volume = "93",

pages = "314--320",

journal = "Earth and Planetary Science Letters",

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T1 - Distribution of sulphides and oxidised sulphur components in SNC meteorites

AU - Burgess, R.

AU - Wright, I. P.

AU - Pillinger, C. T.

N1 - Funding Information: We are grateful to Dr. R. Hutchison of the British Museum (Natural History) and the Antarctic Meteorite Working Group for provision of samples. We thank J.L. Gooding and H.Y. McSween for their constructive reviews of the manuscript. This research was supported by the S.E.R.C.

PY - 1989/7

Y1 - 1989/7

N2 - Stepped combustion analysis of sulphur-bearing phases in SNC meteorites indicates that sulphates and sulphides are widespread at low abundance in these meteorites. The amount of sulphate sulphur is highest in shergottites: Shergotty (190 ppm) and ALHA 77005 (90 ppm). Nakhla and Chassigny contain lower sulphate sulphur contents (80-85 ppm) compared with shergottites, but their oxidised/reduced sulphur ratios are significantly greater ( ≥ 1.5) which indicates higher net oxidation states. Nakhla and Chassigny also contain elemental sulphur as an additional oxidised component. An origin of the sulphates (and elemental sulphur) by terrestrial weathering processes cannot be completely rejected, but it is considered more likely that the minerals were incorporated into the host rocks as relict grains of weathering or alteration products formed on the surface of the SNC parent body.

AB - Stepped combustion analysis of sulphur-bearing phases in SNC meteorites indicates that sulphates and sulphides are widespread at low abundance in these meteorites. The amount of sulphate sulphur is highest in shergottites: Shergotty (190 ppm) and ALHA 77005 (90 ppm). Nakhla and Chassigny contain lower sulphate sulphur contents (80-85 ppm) compared with shergottites, but their oxidised/reduced sulphur ratios are significantly greater ( ≥ 1.5) which indicates higher net oxidation states. Nakhla and Chassigny also contain elemental sulphur as an additional oxidised component. An origin of the sulphates (and elemental sulphur) by terrestrial weathering processes cannot be completely rejected, but it is considered more likely that the minerals were incorporated into the host rocks as relict grains of weathering or alteration products formed on the surface of the SNC parent body.

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U2 - 10.1016/0012-821X(89)90030-7

DO - 10.1016/0012-821X(89)90030-7

M3 - Article

AN - SCOPUS:0024527397

SN - 0012-821X

VL - 93

SP - 314

EP - 320

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

IS - 3-4

ER -

Distribution of sulphides and oxidised sulphur components in SNC meteorites

Abstract

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