10 Be and magnetic susceptibility in Chinese loess
10 Be and magnetic susceptibility have been measured in the top 12 m of a loess profile from Luochuan, Central China. Comparison of the 10 Be concentration record with the SPECMAP δ 18 O profile of the last 130 ka (Imbrie et al., 1984] results in a new time scale which is in good agreement with that...
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Language: | English |
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1993
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Online Access: | https://doi.org/10.1029/92GL02676 |
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fteawag:oai:dora:eawag_2873 2023-05-15T14:13:48+02:00 10 Be and magnetic susceptibility in Chinese loess Beer, Jürg Shen, Chengde Heller, Friedrich Liu, Tungsheng Bonani, George Dittrich, Beate Suter, Martin Kubik, Peter W. 1993 https://doi.org/10.1029/92GL02676 eng eng Wiley Geophysical Research Letters--Geophys. Res. Lett.--journals:1144--0094-8276 eawag:2873 journal id: journals:1144 issn: 0094-8276 ut: A1993KH68800015 local: 6164 doi:10.1029/92GL02676 scopus: 2-s2.0-0027103321 Text Journal Article 1993 fteawag https://doi.org/10.1029/92GL02676 2023-04-09T04:48:44Z 10 Be and magnetic susceptibility have been measured in the top 12 m of a loess profile from Luochuan, Central China. Comparison of the 10 Be concentration record with the SPECMAP δ 18 O profile of the last 130 ka (Imbrie et al., 1984] results in a new time scale which is in good agreement with that of Kukla et al. [1990]. The calculated loess accumulation rates can be compared with existing records of dust falls in Pacific deep sea sediments and Antarctic ice cores. A simple model for the 10 Be dust flux demonstrates that a significant part of the magnetic susceptibility signal in palaeosol horizons is due to in situ pedogenic production. During times of high loess accumulation (cold palaeoclimate) this contribution is negligible. Article in Journal/Newspaper Antarc* Antarctic DORA Eawag Antarctic Pacific Geophysical Research Letters 20 1 57 60 |
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Open Polar |
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English |
description |
10 Be and magnetic susceptibility have been measured in the top 12 m of a loess profile from Luochuan, Central China. Comparison of the 10 Be concentration record with the SPECMAP δ 18 O profile of the last 130 ka (Imbrie et al., 1984] results in a new time scale which is in good agreement with that of Kukla et al. [1990]. The calculated loess accumulation rates can be compared with existing records of dust falls in Pacific deep sea sediments and Antarctic ice cores. A simple model for the 10 Be dust flux demonstrates that a significant part of the magnetic susceptibility signal in palaeosol horizons is due to in situ pedogenic production. During times of high loess accumulation (cold palaeoclimate) this contribution is negligible. |
format |
Article in Journal/Newspaper |
author |
Beer, Jürg Shen, Chengde Heller, Friedrich Liu, Tungsheng Bonani, George Dittrich, Beate Suter, Martin Kubik, Peter W. |
spellingShingle |
Beer, Jürg Shen, Chengde Heller, Friedrich Liu, Tungsheng Bonani, George Dittrich, Beate Suter, Martin Kubik, Peter W. 10 Be and magnetic susceptibility in Chinese loess |
author_facet |
Beer, Jürg Shen, Chengde Heller, Friedrich Liu, Tungsheng Bonani, George Dittrich, Beate Suter, Martin Kubik, Peter W. |
author_sort |
Beer, Jürg |
title |
10 Be and magnetic susceptibility in Chinese loess |
title_short |
10 Be and magnetic susceptibility in Chinese loess |
title_full |
10 Be and magnetic susceptibility in Chinese loess |
title_fullStr |
10 Be and magnetic susceptibility in Chinese loess |
title_full_unstemmed |
10 Be and magnetic susceptibility in Chinese loess |
title_sort |
10 be and magnetic susceptibility in chinese loess |
publisher |
Wiley |
publishDate |
1993 |
url |
https://doi.org/10.1029/92GL02676 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Geophysical Research Letters--Geophys. Res. Lett.--journals:1144--0094-8276 eawag:2873 journal id: journals:1144 issn: 0094-8276 ut: A1993KH68800015 local: 6164 doi:10.1029/92GL02676 scopus: 2-s2.0-0027103321 |
op_doi |
https://doi.org/10.1029/92GL02676 |
container_title |
Geophysical Research Letters |
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20 |
container_issue |
1 |
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57 |
op_container_end_page |
60 |
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1766286342677856256 |