Cosmogenic nuclides during isotope stages 2 and 3
Changes in the concentration of cosmogenic nuclides measured in natural archives are related mainly to changes in the cosmic-ray-induced production rate in the atmosphere, but also to the subsequent transport and deposition processes which depend on the geochemical properties of the nuclides. A comp...
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Online Access: | https://doi.org/10.1016/S0277-3791(01)00135-4 |
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fteawag:oai:dora:eawag_4290 2023-05-15T16:29:44+02:00 Cosmogenic nuclides during isotope stages 2 and 3 Beer, Juerg Muscheler, Raimund Wagner, Gerhard Laj, Carlo Kissel, Catherine Kubik, Peter W. Synal, Hans-Arno 2002 https://doi.org/10.1016/S0277-3791(01)00135-4 eng eng Elsevier Quaternary Science Reviews--Quat. Sci. Rev.--journals:2468--0277-3791 eawag:4290 journal id: journals:2468 issn: 0277-3791 ut: 000175777400002 local: 8688 doi:10.1016/S0277-3791(01)00135-4 scopus: 2-s2.0-0036261297 Text Journal Article 2002 fteawag https://doi.org/10.1016/S0277-3791(01)00135-4 2023-04-09T04:48:09Z Changes in the concentration of cosmogenic nuclides measured in natural archives are related mainly to changes in the cosmic-ray-induced production rate in the atmosphere, but also to the subsequent transport and deposition processes which depend on the geochemical properties of the nuclides. A comparison of 10 Be and 36 Cl data from ice cores from Greenland ice cores and 14 C data from tree rings and other archives provides the following information for the isotope stages 2 and 3: 1. Changes in the cosmogenic-nuclide production rate on time scales longer than approximately 2 kyr agree well with paleomagnetic data derived from deep-sea sediments. In particular, the geomagnetic excursions leading to weak fields around 40kyr BP (Laschamp) and 32 kyr BP (Mono Lake) can be clearly seen. 2. Production variations on shorter time scales contain information on solar variability. As an example, the 205 yr DeVries cycle already known from the analysis of 14 C tree ring data during the Holocene is also present in the 10 Be data of the time period 25-55 kyr BP. 3. A comparison of Δ 14 C calculated using 10 Be data with the measured Δ 14 C record, points to a reduction of the global deep-water formation during the Younger Dryas cold event. 4. Using information available on the production rates of cosmogenic nuclides in the past derived from paleomagnetic data, the paleoprecipitation rate can be calculated. This is crucial for establishing precise time scales. Article in Journal/Newspaper Greenland Greenland ice cores DORA Eawag Greenland Quaternary Science Reviews 21 10 1129 1139 |
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English |
description |
Changes in the concentration of cosmogenic nuclides measured in natural archives are related mainly to changes in the cosmic-ray-induced production rate in the atmosphere, but also to the subsequent transport and deposition processes which depend on the geochemical properties of the nuclides. A comparison of 10 Be and 36 Cl data from ice cores from Greenland ice cores and 14 C data from tree rings and other archives provides the following information for the isotope stages 2 and 3: 1. Changes in the cosmogenic-nuclide production rate on time scales longer than approximately 2 kyr agree well with paleomagnetic data derived from deep-sea sediments. In particular, the geomagnetic excursions leading to weak fields around 40kyr BP (Laschamp) and 32 kyr BP (Mono Lake) can be clearly seen. 2. Production variations on shorter time scales contain information on solar variability. As an example, the 205 yr DeVries cycle already known from the analysis of 14 C tree ring data during the Holocene is also present in the 10 Be data of the time period 25-55 kyr BP. 3. A comparison of Δ 14 C calculated using 10 Be data with the measured Δ 14 C record, points to a reduction of the global deep-water formation during the Younger Dryas cold event. 4. Using information available on the production rates of cosmogenic nuclides in the past derived from paleomagnetic data, the paleoprecipitation rate can be calculated. This is crucial for establishing precise time scales. |
format |
Article in Journal/Newspaper |
author |
Beer, Juerg Muscheler, Raimund Wagner, Gerhard Laj, Carlo Kissel, Catherine Kubik, Peter W. Synal, Hans-Arno |
spellingShingle |
Beer, Juerg Muscheler, Raimund Wagner, Gerhard Laj, Carlo Kissel, Catherine Kubik, Peter W. Synal, Hans-Arno Cosmogenic nuclides during isotope stages 2 and 3 |
author_facet |
Beer, Juerg Muscheler, Raimund Wagner, Gerhard Laj, Carlo Kissel, Catherine Kubik, Peter W. Synal, Hans-Arno |
author_sort |
Beer, Juerg |
title |
Cosmogenic nuclides during isotope stages 2 and 3 |
title_short |
Cosmogenic nuclides during isotope stages 2 and 3 |
title_full |
Cosmogenic nuclides during isotope stages 2 and 3 |
title_fullStr |
Cosmogenic nuclides during isotope stages 2 and 3 |
title_full_unstemmed |
Cosmogenic nuclides during isotope stages 2 and 3 |
title_sort |
cosmogenic nuclides during isotope stages 2 and 3 |
publisher |
Elsevier |
publishDate |
2002 |
url |
https://doi.org/10.1016/S0277-3791(01)00135-4 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice cores |
genre_facet |
Greenland Greenland ice cores |
op_relation |
Quaternary Science Reviews--Quat. Sci. Rev.--journals:2468--0277-3791 eawag:4290 journal id: journals:2468 issn: 0277-3791 ut: 000175777400002 local: 8688 doi:10.1016/S0277-3791(01)00135-4 scopus: 2-s2.0-0036261297 |
op_doi |
https://doi.org/10.1016/S0277-3791(01)00135-4 |
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Quaternary Science Reviews |
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21 |
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10 |
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1129 |
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1139 |
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1766019443317538816 |