Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005
Antarctic meteorite ALLAN HILLS A81005, an anorthositic breccia, is recognized to be of lunar origin. The noble gases in this meteorite were analyzed and found to be solar-wind implanted gases, whose absolute and relative concentrations are quite similar to those in lunar regolith samples. A sample...
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1986
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ftnasantrs:oai:casi.ntrs.nasa.gov:19860019349 2023-05-15T13:53:27+02:00 Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 Kraehenbuehl, U. Eugster, O. Niedermann, S. Unclassified, Unlimited, Publicly available JAN 1, 1986 application/pdf http://hdl.handle.net/2060/19860019349 unknown Document ID: 19860019349 Accession ID: 86N28821 http://hdl.handle.net/2060/19860019349 No Copyright CASI ASTROPHYSICS Lunar and Planetary Inst. International Workshop on Antarctic Meteorites; p 61-64 1986 ftnasantrs 2016-06-11T22:52:12Z Antarctic meteorite ALLAN HILLS A81005, an anorthositic breccia, is recognized to be of lunar origin. The noble gases in this meteorite were analyzed and found to be solar-wind implanted gases, whose absolute and relative concentrations are quite similar to those in lunar regolith samples. A sample of this meteorite was obtained for the analysis of the noble gas isotopes, including Kr(81), and for the determination of the elemental abundances. In order to better determine the volume derived from the surface correlated gases, grain size fractions were prepared. The results of the instrumental measurements of the gamma radiation are listed. From the amounts of cosmic ray produced noble gases and respective production rates, the lunar surface residence times were calculated. It was concluded that the lunar surface time is about half a billion years. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
ASTROPHYSICS |
spellingShingle |
ASTROPHYSICS Kraehenbuehl, U. Eugster, O. Niedermann, S. Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
topic_facet |
ASTROPHYSICS |
description |
Antarctic meteorite ALLAN HILLS A81005, an anorthositic breccia, is recognized to be of lunar origin. The noble gases in this meteorite were analyzed and found to be solar-wind implanted gases, whose absolute and relative concentrations are quite similar to those in lunar regolith samples. A sample of this meteorite was obtained for the analysis of the noble gas isotopes, including Kr(81), and for the determination of the elemental abundances. In order to better determine the volume derived from the surface correlated gases, grain size fractions were prepared. The results of the instrumental measurements of the gamma radiation are listed. From the amounts of cosmic ray produced noble gases and respective production rates, the lunar surface residence times were calculated. It was concluded that the lunar surface time is about half a billion years. |
format |
Other/Unknown Material |
author |
Kraehenbuehl, U. Eugster, O. Niedermann, S. |
author_facet |
Kraehenbuehl, U. Eugster, O. Niedermann, S. |
author_sort |
Kraehenbuehl, U. |
title |
Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
title_short |
Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
title_full |
Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
title_fullStr |
Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
title_full_unstemmed |
Element distribution and noble gas isotopic abundances in lunar meteorite Allan Hills A81005 |
title_sort |
element distribution and noble gas isotopic abundances in lunar meteorite allan hills a81005 |
publishDate |
1986 |
url |
http://hdl.handle.net/2060/19860019349 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Antarctic Allan Hills |
geographic_facet |
Antarctic Allan Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 19860019349 Accession ID: 86N28821 http://hdl.handle.net/2060/19860019349 |
op_rights |
No Copyright |
_version_ |
1766258550772858880 |