Trapped noble gases indicate lunar origin for Antarctic meteorite

The isotopic abundances of the noble gases (He, Ne, Ar, Kr, Xe) are reported for Antarctic ALHA 81005. It contains solar wind-implanted gases whose absolute and relative concentrations are quite similar to lunar regolith samples but not to other meteorites. ALHA 81005 also contains a large excess Ar...

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Main Authors: Bogard, D. D., Johnson, P.
Format: Other/Unknown Material
Language:unknown
Published: 1983
Subjects:
91
Antarctic
Antarc*
Online Access:http://ntrs.nasa.gov/search.jsp?R=19830065649
id ftnasantrs:oai:casi.ntrs.nasa.gov:19830065649
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19830065649 2023-05-15T13:35:32+02:00 Trapped noble gases indicate lunar origin for Antarctic meteorite Bogard, D. D. Johnson, P. Unclassified, Unlimited, Publicly available Sep 1, 1983 http://ntrs.nasa.gov/search.jsp?R=19830065649 unknown http://ntrs.nasa.gov/search.jsp?R=19830065649 Accession ID: 83A46867 Copyright Other Sources 91 Geophysical Research Letters; 10; Sept 1983 ftnasantrs 2012-02-15T15:32:57Z The isotopic abundances of the noble gases (He, Ne, Ar, Kr, Xe) are reported for Antarctic ALHA 81005. It contains solar wind-implanted gases whose absolute and relative concentrations are quite similar to lunar regolith samples but not to other meteorites. ALHA 81005 also contains a large excess Ar-40 component which is identical to the component in lunar fines implanted from the lunar atmosphere. Large concentrations of cosmogenic Ne-21, Kr-82, and Xe-126 in ALHA 81005 indicate a total cosmic ray exposure age of at least 200 million years. The noble gas data alone are strong evidence for a lunar origin of this meteorite. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 91
spellingShingle 91
Bogard, D. D.
Johnson, P.
Trapped noble gases indicate lunar origin for Antarctic meteorite
topic_facet 91
description The isotopic abundances of the noble gases (He, Ne, Ar, Kr, Xe) are reported for Antarctic ALHA 81005. It contains solar wind-implanted gases whose absolute and relative concentrations are quite similar to lunar regolith samples but not to other meteorites. ALHA 81005 also contains a large excess Ar-40 component which is identical to the component in lunar fines implanted from the lunar atmosphere. Large concentrations of cosmogenic Ne-21, Kr-82, and Xe-126 in ALHA 81005 indicate a total cosmic ray exposure age of at least 200 million years. The noble gas data alone are strong evidence for a lunar origin of this meteorite.
format Other/Unknown Material
author Bogard, D. D.
Johnson, P.
author_facet Bogard, D. D.
Johnson, P.
author_sort Bogard, D. D.
title Trapped noble gases indicate lunar origin for Antarctic meteorite
title_short Trapped noble gases indicate lunar origin for Antarctic meteorite
title_full Trapped noble gases indicate lunar origin for Antarctic meteorite
title_fullStr Trapped noble gases indicate lunar origin for Antarctic meteorite
title_full_unstemmed Trapped noble gases indicate lunar origin for Antarctic meteorite
title_sort trapped noble gases indicate lunar origin for antarctic meteorite
publishDate 1983
url http://ntrs.nasa.gov/search.jsp?R=19830065649
op_coverage Unclassified, Unlimited, Publicly available
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19830065649
Accession ID: 83A46867
op_rights Copyright
_version_ 1766066913277902848

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