Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts
Abundances of siderophile and chalcophile elements in the shergottite parental body (SPB) have been compared with those of the earth. To this end, new INAA and RNAA analyses of non-Antarctic meteorites have been performed, and the composition of the shergottite SPB mantle has been inferred from the...
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1986
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ftnasantrs:oai:casi.ntrs.nasa.gov:19860063607 2023-05-15T13:49:36+02:00 Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts Treiman, A. H. Drake, M. J. Janssens, M.-J. Wolf, R. Ebihara, M. Unclassified, Unlimited, Publicly available Jun 1, 1986 http://ntrs.nasa.gov/search.jsp?R=19860063607 unknown http://ntrs.nasa.gov/search.jsp?R=19860063607 Accession ID: 86A48345 Copyright Other Sources 91 Geochimica et Cosmochimica Acta; 50; 1071-109 1986 ftnasantrs 2012-02-15T16:51:20Z Abundances of siderophile and chalcophile elements in the shergottite parental body (SPB) have been compared with those of the earth. To this end, new INAA and RNAA analyses of non-Antarctic meteorites have been performed, and the composition of the shergottite SPB mantle has been inferred from the compositions of the SNC meteorites. The composition of the earth's mantle has been inferred from the compositions of terrestrial basalt. Finally, the effects of volatile depletion, core formation, and mineral/melt fractionation on the abundances of siderophile and chalcophile elements in the SPB and the earth have been taken into consideration. Compared to the earth, the SPB mantle is richer in moderately siderophile elements and more depleted with respect to chalcophile elements. The observed relative abundances of siderophile and chalcophile elements in the SPB and the earth mantles indicate that the SPB underwent accretion and/or differentiation processes which differ from those in the earth. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
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91 |
spellingShingle |
91 Treiman, A. H. Drake, M. J. Janssens, M.-J. Wolf, R. Ebihara, M. Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
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91 |
description |
Abundances of siderophile and chalcophile elements in the shergottite parental body (SPB) have been compared with those of the earth. To this end, new INAA and RNAA analyses of non-Antarctic meteorites have been performed, and the composition of the shergottite SPB mantle has been inferred from the compositions of the SNC meteorites. The composition of the earth's mantle has been inferred from the compositions of terrestrial basalt. Finally, the effects of volatile depletion, core formation, and mineral/melt fractionation on the abundances of siderophile and chalcophile elements in the SPB and the earth have been taken into consideration. Compared to the earth, the SPB mantle is richer in moderately siderophile elements and more depleted with respect to chalcophile elements. The observed relative abundances of siderophile and chalcophile elements in the SPB and the earth mantles indicate that the SPB underwent accretion and/or differentiation processes which differ from those in the earth. |
format |
Other/Unknown Material |
author |
Treiman, A. H. Drake, M. J. Janssens, M.-J. Wolf, R. Ebihara, M. |
author_facet |
Treiman, A. H. Drake, M. J. Janssens, M.-J. Wolf, R. Ebihara, M. |
author_sort |
Treiman, A. H. |
title |
Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
title_short |
Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
title_full |
Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
title_fullStr |
Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
title_full_unstemmed |
Core formation in the earth and shergottite parent body (SPB) - Chemical evidence from basalts |
title_sort |
core formation in the earth and shergottite parent body (spb) - chemical evidence from basalts |
publishDate |
1986 |
url |
http://ntrs.nasa.gov/search.jsp?R=19860063607 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic |
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Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19860063607 Accession ID: 86A48345 |
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Copyright |
_version_ |
1766251850444570624 |