Extra-terrestrial 53Mn in Antarctic ice
The reasons why 53Mn (a cosmogenic radionuclide with a half-life of 3.7 × 106 y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of 53Mn in pre-1952 snow samples collected on the Eastern Antarctic Plateau in the vicinity o...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/181861 2023-05-15T13:42:08+02:00 Extra-terrestrial 53Mn in Antarctic ice Bibron, Roland Leger, G. Chesselet, Roger Crozaz, Ghislaine Mennessier, Jean Paul Picciotto, Edgardo 1974 2 full-text file(s): application/pdf | application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/181861 https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/1/Elsevier_165488.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/5/c16bd827-38f8-42af-a2f1-331f9551eb73.txt en eng uri/info:doi/10.1016/0012-821X(74)90043-0 uri/info:pii/0012821X74900430 uri/info:scp/1542598572 local/VX-017538 https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/1/Elsevier_165488.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/5/c16bd827-38f8-42af-a2f1-331f9551eb73.txt http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/181861 2 full-text file(s): info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/openAccess Earth and planetary science letters, 21 (2 Sciences de l'espace Géographie physique Pétrologie Géochimie Sciences de la terre et du cosmos info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 1974 ftunivbruxelles 2022-06-12T20:37:48Z The reasons why 53Mn (a cosmogenic radionuclide with a half-life of 3.7 × 106 y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of 53Mn in pre-1952 snow samples collected on the Eastern Antarctic Plateau in the vicinity of Plateau Station. The measurements were carried out by neutron activation and X-ray spectrometry on three samples weighing a few hundred kg and covering each the time interval 1935-1950. The specific activity of 53Mn was found to be (0.82 ± 0.17) disint.min-1/103 tons of snow, corresponding to a deposition rate at Plateau Station of (2.2 ± 0.5) × 10-5 disint. min-1 m-2 y-1. The mean global deposition rate would be three times higher if 53Mn were assumed to behave in the same way as stratospheric 90Sr. By comparing this figure with existing data on the meteorite flux reaching the earth and with the galactic and solar production rates of 53Mn, it is concluded that the bulk of the 53Mn found at Plateau Station is associated with interplanetary dust in which it had been produced by the action of solar protons on iron. The deposition rate of extra-terrestrial dust-borne iron must be between 1.3 × 10-5 and 1.3 × 10-4 g m-2 y-1 at Plateau Station. These results support jointly with other studies the concept of an interplanetary zodiacal cloud of dust with a chemical composition and density not essentially different from chondritic meteorites, with a relatively 'flat' grain size distribution and a mass influx to the earth of the order of 105 tons/y. © 1974. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences de l'espace Géographie physique Pétrologie Géochimie Sciences de la terre et du cosmos |
spellingShingle |
Sciences de l'espace Géographie physique Pétrologie Géochimie Sciences de la terre et du cosmos Bibron, Roland Leger, G. Chesselet, Roger Crozaz, Ghislaine Mennessier, Jean Paul Picciotto, Edgardo Extra-terrestrial 53Mn in Antarctic ice |
topic_facet |
Sciences de l'espace Géographie physique Pétrologie Géochimie Sciences de la terre et du cosmos |
description |
The reasons why 53Mn (a cosmogenic radionuclide with a half-life of 3.7 × 106 y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of 53Mn in pre-1952 snow samples collected on the Eastern Antarctic Plateau in the vicinity of Plateau Station. The measurements were carried out by neutron activation and X-ray spectrometry on three samples weighing a few hundred kg and covering each the time interval 1935-1950. The specific activity of 53Mn was found to be (0.82 ± 0.17) disint.min-1/103 tons of snow, corresponding to a deposition rate at Plateau Station of (2.2 ± 0.5) × 10-5 disint. min-1 m-2 y-1. The mean global deposition rate would be three times higher if 53Mn were assumed to behave in the same way as stratospheric 90Sr. By comparing this figure with existing data on the meteorite flux reaching the earth and with the galactic and solar production rates of 53Mn, it is concluded that the bulk of the 53Mn found at Plateau Station is associated with interplanetary dust in which it had been produced by the action of solar protons on iron. The deposition rate of extra-terrestrial dust-borne iron must be between 1.3 × 10-5 and 1.3 × 10-4 g m-2 y-1 at Plateau Station. These results support jointly with other studies the concept of an interplanetary zodiacal cloud of dust with a chemical composition and density not essentially different from chondritic meteorites, with a relatively 'flat' grain size distribution and a mass influx to the earth of the order of 105 tons/y. © 1974. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Bibron, Roland Leger, G. Chesselet, Roger Crozaz, Ghislaine Mennessier, Jean Paul Picciotto, Edgardo |
author_facet |
Bibron, Roland Leger, G. Chesselet, Roger Crozaz, Ghislaine Mennessier, Jean Paul Picciotto, Edgardo |
author_sort |
Bibron, Roland |
title |
Extra-terrestrial 53Mn in Antarctic ice |
title_short |
Extra-terrestrial 53Mn in Antarctic ice |
title_full |
Extra-terrestrial 53Mn in Antarctic ice |
title_fullStr |
Extra-terrestrial 53Mn in Antarctic ice |
title_full_unstemmed |
Extra-terrestrial 53Mn in Antarctic ice |
title_sort |
extra-terrestrial 53mn in antarctic ice |
publishDate |
1974 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/181861 https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/1/Elsevier_165488.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/5/c16bd827-38f8-42af-a2f1-331f9551eb73.txt |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Earth and planetary science letters, 21 (2 |
op_relation |
uri/info:doi/10.1016/0012-821X(74)90043-0 uri/info:pii/0012821X74900430 uri/info:scp/1542598572 local/VX-017538 https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/1/Elsevier_165488.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/181861/5/c16bd827-38f8-42af-a2f1-331f9551eb73.txt http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/181861 |
op_rights |
2 full-text file(s): info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/openAccess |
_version_ |
1766163048452587520 |