Relationships among basaltic lunar meteorites
During the past two years four meteorites of dominantly mare basalt composition were identified in the Japanese and US Antarctic collections. Basalts represent a much higher proportion of the lunar meteorites than is expected from photogeologic mapping of mare and highland regions. Also, the basalti...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19920003704 2023-05-15T13:42:52+02:00 Relationships among basaltic lunar meteorites Lindstrom, Marilyn M. Unclassified, Unlimited, Publicly available JAN 1, 1991 application/pdf http://hdl.handle.net/2060/19920003704 unknown Document ID: 19920003704 Accession ID: 92N12922 http://hdl.handle.net/2060/19920003704 No Copyright CASI ASTROPHYSICS Lunar and Planetary Inst., Abstracts for the 54th Annual Meeting of the Meteoritical Society; p 138 1991 ftnasantrs 2015-03-15T05:01:06Z During the past two years four meteorites of dominantly mare basalt composition were identified in the Japanese and US Antarctic collections. Basalts represent a much higher proportion of the lunar meteorites than is expected from photogeologic mapping of mare and highland regions. Also, the basaltic lunar meteorites are all described as VLT mare basalt, which is a relatively uncommon type among returned lunar samples. The significance of the basaltic meteorites to the understanding of the lunar crust depends on the evaluation of possible relationships among the individual meteorites. None of the specimens are paired meteorites. They differ from each other in petrography and composition. It is important to determine whether they might be paired ejecta which were ejected from the same mare region by the same impact. The question of paired ejecta must be addressed using a combination of exposure histories and petrographic/compositional characteristics. It is possible that the basaltic lunar meteorites are paired ejecta from the same region of the Moon. However, the relationships among them are more complicated than the basaltic breccias being simply brecciated mare gabbros. 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 |
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ASTROPHYSICS |
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ASTROPHYSICS Lindstrom, Marilyn M. Relationships among basaltic lunar meteorites |
topic_facet |
ASTROPHYSICS |
description |
During the past two years four meteorites of dominantly mare basalt composition were identified in the Japanese and US Antarctic collections. Basalts represent a much higher proportion of the lunar meteorites than is expected from photogeologic mapping of mare and highland regions. Also, the basaltic lunar meteorites are all described as VLT mare basalt, which is a relatively uncommon type among returned lunar samples. The significance of the basaltic meteorites to the understanding of the lunar crust depends on the evaluation of possible relationships among the individual meteorites. None of the specimens are paired meteorites. They differ from each other in petrography and composition. It is important to determine whether they might be paired ejecta which were ejected from the same mare region by the same impact. The question of paired ejecta must be addressed using a combination of exposure histories and petrographic/compositional characteristics. It is possible that the basaltic lunar meteorites are paired ejecta from the same region of the Moon. However, the relationships among them are more complicated than the basaltic breccias being simply brecciated mare gabbros. |
format |
Other/Unknown Material |
author |
Lindstrom, Marilyn M. |
author_facet |
Lindstrom, Marilyn M. |
author_sort |
Lindstrom, Marilyn M. |
title |
Relationships among basaltic lunar meteorites |
title_short |
Relationships among basaltic lunar meteorites |
title_full |
Relationships among basaltic lunar meteorites |
title_fullStr |
Relationships among basaltic lunar meteorites |
title_full_unstemmed |
Relationships among basaltic lunar meteorites |
title_sort |
relationships among basaltic lunar meteorites |
publishDate |
1991 |
url |
http://hdl.handle.net/2060/19920003704 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 19920003704 Accession ID: 92N12922 http://hdl.handle.net/2060/19920003704 |
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No Copyright |
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1766173716368064512 |