Cosmic ray records in Antarctic meteorites
The cosmogenic radionuclides Be(10), Al(26), and Mn(53) and noble gases were determined in more than 28 meteorites from Antarctica by nuclear analytical techniques and static mass spectrometry, respectively. The summarized results are listed. The concentrations of Al(26) and Mn(53) are normalized to...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19860019347 2023-05-15T13:53:27+02:00 Cosmic ray records in Antarctic meteorites Wieler, R. Woelfli, W. Herpers, U. Sarafin, R. Vogt, S. Signer, P. Suter, M. Unclassified, Unlimited, Publicly available JAN 1, 1986 application/pdf http://hdl.handle.net/2060/19860019347 unknown Document ID: 19860019347 Accession ID: 86N28819 http://hdl.handle.net/2060/19860019347 No Copyright CASI SPACE RADIATION Lunar and Planetary Inst. International Workshop on Antarctic Meteorites; p 55-57 1986 ftnasantrs 2016-06-11T22:52:12Z The cosmogenic radionuclides Be(10), Al(26), and Mn(53) and noble gases were determined in more than 28 meteorites from Antarctica by nuclear analytical techniques and static mass spectrometry, respectively. The summarized results are listed. The concentrations of Al(26) and Mn(53) are normalized to the repective main target elements and given in dpm/kg Si sub eq and dpm/kg Fe. The errors stated include statistical as well as systematical errors. For noble gas concentrations estimated errors are 5% and for isotopic ratios 1.5%. Cosmic ray exposure ages T sub 21 were calculated by the noble gas concentrations and the terrestrial residence time (T) on the basis of the spallogenic nuclide Al(26). The suggested pairing of the LL6 chondrite RKPA 80238 and RKPA 80248 and the eucrites ALHA 76005 and ALHA 79017 is confirmed not only by the noble gas data but also by the concentrations of the spallation produced radionuclides. Futhermore, ALHA 80122, clasified as an H6 chondrite, has a noble gas pattern which suggest that this meteorite belongs to the ALHA 80111 shower. Other/Unknown Material Antarc* Antarctic Antarctica NASA Technical Reports Server (NTRS) Antarctic |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
SPACE RADIATION |
spellingShingle |
SPACE RADIATION Wieler, R. Woelfli, W. Herpers, U. Sarafin, R. Vogt, S. Signer, P. Suter, M. Cosmic ray records in Antarctic meteorites |
topic_facet |
SPACE RADIATION |
description |
The cosmogenic radionuclides Be(10), Al(26), and Mn(53) and noble gases were determined in more than 28 meteorites from Antarctica by nuclear analytical techniques and static mass spectrometry, respectively. The summarized results are listed. The concentrations of Al(26) and Mn(53) are normalized to the repective main target elements and given in dpm/kg Si sub eq and dpm/kg Fe. The errors stated include statistical as well as systematical errors. For noble gas concentrations estimated errors are 5% and for isotopic ratios 1.5%. Cosmic ray exposure ages T sub 21 were calculated by the noble gas concentrations and the terrestrial residence time (T) on the basis of the spallogenic nuclide Al(26). The suggested pairing of the LL6 chondrite RKPA 80238 and RKPA 80248 and the eucrites ALHA 76005 and ALHA 79017 is confirmed not only by the noble gas data but also by the concentrations of the spallation produced radionuclides. Futhermore, ALHA 80122, clasified as an H6 chondrite, has a noble gas pattern which suggest that this meteorite belongs to the ALHA 80111 shower. |
format |
Other/Unknown Material |
author |
Wieler, R. Woelfli, W. Herpers, U. Sarafin, R. Vogt, S. Signer, P. Suter, M. |
author_facet |
Wieler, R. Woelfli, W. Herpers, U. Sarafin, R. Vogt, S. Signer, P. Suter, M. |
author_sort |
Wieler, R. |
title |
Cosmic ray records in Antarctic meteorites |
title_short |
Cosmic ray records in Antarctic meteorites |
title_full |
Cosmic ray records in Antarctic meteorites |
title_fullStr |
Cosmic ray records in Antarctic meteorites |
title_full_unstemmed |
Cosmic ray records in Antarctic meteorites |
title_sort |
cosmic ray records in antarctic meteorites |
publishDate |
1986 |
url |
http://hdl.handle.net/2060/19860019347 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
CASI |
op_relation |
Document ID: 19860019347 Accession ID: 86N28819 http://hdl.handle.net/2060/19860019347 |
op_rights |
No Copyright |
_version_ |
1766258550962651136 |