ALH 82102: An Antarctic meteorite embedded partly in ice
Abstract We measured the concentrations of F, Cl, Br and I in two different aliquots of the meteorite ALH 82102. This H5 chondrite was recovered at the Allan Hills region, while it was partially embedded in the ice. One aliquot was taken from that part of the surface of the meteorite that was still...
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crwiley:10.1111/j.1945-5100.1994.tb00779.x 2023-12-03T10:12:53+01:00 ALH 82102: An Antarctic meteorite embedded partly in ice Kråhenbühl, Urs Langenauer, Marcel 1994 http://dx.doi.org/10.1111/j.1945-5100.1994.tb00779.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1945-5100.1994.tb00779.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1945-5100.1994.tb00779.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Meteoritics volume 29, issue 5, page 651-653 ISSN 0026-1114 General Earth and Planetary Sciences General Environmental Science journal-article 1994 crwiley https://doi.org/10.1111/j.1945-5100.1994.tb00779.x 2023-11-09T13:29:55Z Abstract We measured the concentrations of F, Cl, Br and I in two different aliquots of the meteorite ALH 82102. This H5 chondrite was recovered at the Allan Hills region, while it was partially embedded in the ice. One aliquot was taken from that part of the surface of the meteorite that was still in the ice, and the other one was taken from the side, which was poking out of the ice. Both aliquots are highly, and nearly to the same degree, contaminated with halogens. The observed enrichments occurred mainly during the time the meteorite was lying on the surface of the ice by deposition and/or adsorption of aerosols, salts, and gaseous components. A contamination during the time it was covered by the ice is unlikely. We conclude, therefore, that this meteorite was not always buried in the ice during its “residence time” on Earth. In order to accumulate the observed contamination, it had to be on the surface of the ice part of the time between its fall onto the Earth and its collection. The age of the ice surrounding the meteorite cannot be equal to the measured terrestrial age of ALH 82102. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library (via Crossref) Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) Antarctic Meteoritics 29 5 651 653 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
General Earth and Planetary Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Environmental Science Kråhenbühl, Urs Langenauer, Marcel ALH 82102: An Antarctic meteorite embedded partly in ice |
topic_facet |
General Earth and Planetary Sciences General Environmental Science |
description |
Abstract We measured the concentrations of F, Cl, Br and I in two different aliquots of the meteorite ALH 82102. This H5 chondrite was recovered at the Allan Hills region, while it was partially embedded in the ice. One aliquot was taken from that part of the surface of the meteorite that was still in the ice, and the other one was taken from the side, which was poking out of the ice. Both aliquots are highly, and nearly to the same degree, contaminated with halogens. The observed enrichments occurred mainly during the time the meteorite was lying on the surface of the ice by deposition and/or adsorption of aerosols, salts, and gaseous components. A contamination during the time it was covered by the ice is unlikely. We conclude, therefore, that this meteorite was not always buried in the ice during its “residence time” on Earth. In order to accumulate the observed contamination, it had to be on the surface of the ice part of the time between its fall onto the Earth and its collection. The age of the ice surrounding the meteorite cannot be equal to the measured terrestrial age of ALH 82102. |
format |
Article in Journal/Newspaper |
author |
Kråhenbühl, Urs Langenauer, Marcel |
author_facet |
Kråhenbühl, Urs Langenauer, Marcel |
author_sort |
Kråhenbühl, Urs |
title |
ALH 82102: An Antarctic meteorite embedded partly in ice |
title_short |
ALH 82102: An Antarctic meteorite embedded partly in ice |
title_full |
ALH 82102: An Antarctic meteorite embedded partly in ice |
title_fullStr |
ALH 82102: An Antarctic meteorite embedded partly in ice |
title_full_unstemmed |
ALH 82102: An Antarctic meteorite embedded partly in ice |
title_sort |
alh 82102: an antarctic meteorite embedded partly in ice |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1945-5100.1994.tb00779.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1945-5100.1994.tb00779.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1945-5100.1994.tb00779.x |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Allan Hills Antarctic |
geographic_facet |
Allan Hills Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Meteoritics volume 29, issue 5, page 651-653 ISSN 0026-1114 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1945-5100.1994.tb00779.x |
container_title |
Meteoritics |
container_volume |
29 |
container_issue |
5 |
container_start_page |
651 |
op_container_end_page |
653 |
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1784259523725230080 |