Extra-terrestrial $^{53}$Mn in Antarctic ice
International audience The reasons why $^{53}$Mn (a cosmogenic radionuclide with a half-life of 3.7 × 10$^6$ y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of $^{53}$Mn in pre-1952 snow samples collected on the Eastern...
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Online Access: | https://hal.science/hal-03406787 https://doi.org/10.1016/0012-821X(74)90043-0 |
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ftceafr:oai:HAL:hal-03406787v1 2024-09-15T17:46:28+00:00 Extra-terrestrial $^{53}$Mn in Antarctic ice Bibron, R. Chesselet, R. Crozaz, G. Leger, G. Mennessier, J.P. Picciotto, E. CEA- Saclay (CEA) Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) Fonds National de la Recherche Scientifique Bruxelles (FNRS) Université libre de Bruxelles (ULB) 1974-01 https://hal.science/hal-03406787 https://doi.org/10.1016/0012-821X(74)90043-0 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/0012-821X(74)90043-0 hal-03406787 https://hal.science/hal-03406787 doi:10.1016/0012-821X(74)90043-0 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-03406787 Earth and Planetary Science Letters, 1974, 21 (2), pp.109-116. ⟨10.1016/0012-821X(74)90043-0⟩ https://www.sciencedirect.com/science/article/pii/0012821X74900430 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 1974 ftceafr https://doi.org/10.1016/0012-821X(74)90043-0 2024-07-22T13:13:56Z International audience The reasons why $^{53}$Mn (a cosmogenic radionuclide with a half-life of 3.7 × 10$^6$ y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of $^{53}$Mn 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 $^{53}$Mn was found to be (0.82 ± 0.17) disint.min$^{−1}$/10$^3$ 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 $^{53}$Mn were assumed to behave in the same way as stratospheric $^{90}$Sr. By comparing this figure with existing data on the meteorite flux reaching the earth and with the galactic and solar production rates of $^{53}$Mn, it is concluded that the bulk of the $^{53}$Mn 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$^{-3}$ 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 10$^5$ tons/y. Article in Journal/Newspaper Antarc* Antarctic HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Earth and Planetary Science Letters 21 2 109 116 |
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Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Bibron, R. Chesselet, R. Crozaz, G. Leger, G. Mennessier, J.P. Picciotto, E. Extra-terrestrial $^{53}$Mn in Antarctic ice |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience The reasons why $^{53}$Mn (a cosmogenic radionuclide with a half-life of 3.7 × 10$^6$ y) appears as one of the best indicators of the presence of interplanetary dust are summarized. This paper reports the detection of $^{53}$Mn 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 $^{53}$Mn was found to be (0.82 ± 0.17) disint.min$^{−1}$/10$^3$ 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 $^{53}$Mn were assumed to behave in the same way as stratospheric $^{90}$Sr. By comparing this figure with existing data on the meteorite flux reaching the earth and with the galactic and solar production rates of $^{53}$Mn, it is concluded that the bulk of the $^{53}$Mn 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$^{-3}$ 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 10$^5$ tons/y. |
author2 |
CEA- Saclay (CEA) Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) Fonds National de la Recherche Scientifique Bruxelles (FNRS) Université libre de Bruxelles (ULB) |
format |
Article in Journal/Newspaper |
author |
Bibron, R. Chesselet, R. Crozaz, G. Leger, G. Mennessier, J.P. Picciotto, E. |
author_facet |
Bibron, R. Chesselet, R. Crozaz, G. Leger, G. Mennessier, J.P. Picciotto, E. |
author_sort |
Bibron, R. |
title |
Extra-terrestrial $^{53}$Mn in Antarctic ice |
title_short |
Extra-terrestrial $^{53}$Mn in Antarctic ice |
title_full |
Extra-terrestrial $^{53}$Mn in Antarctic ice |
title_fullStr |
Extra-terrestrial $^{53}$Mn in Antarctic ice |
title_full_unstemmed |
Extra-terrestrial $^{53}$Mn in Antarctic ice |
title_sort |
extra-terrestrial $^{53}$mn in antarctic ice |
publisher |
HAL CCSD |
publishDate |
1974 |
url |
https://hal.science/hal-03406787 https://doi.org/10.1016/0012-821X(74)90043-0 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-03406787 Earth and Planetary Science Letters, 1974, 21 (2), pp.109-116. ⟨10.1016/0012-821X(74)90043-0⟩ https://www.sciencedirect.com/science/article/pii/0012821X74900430 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/0012-821X(74)90043-0 hal-03406787 https://hal.science/hal-03406787 doi:10.1016/0012-821X(74)90043-0 |
op_doi |
https://doi.org/10.1016/0012-821X(74)90043-0 |
container_title |
Earth and Planetary Science Letters |
container_volume |
21 |
container_issue |
2 |
container_start_page |
109 |
op_container_end_page |
116 |
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1810494630819528704 |