Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record
We analyse the 8200 yr BP cold event by comparing the high-resolution Be-10 record from the GRIP ice core from Central Greenland with the well-known tree ring Delta(14)C record. By transferring the absolute dated tree ring chronology to the ice core time scale, we show that the coldest phase in the...
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Online Access: | https://lup.lub.lu.se/record/262655 https://doi.org/10.1016/j.quascirev.2004.08.007 |
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ftulundlup:oai:lup.lub.lu.se:b4a56a07-1eb3-4322-9aab-0aa565b120d0 2023-05-15T16:29:38+02:00 Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record Muscheler, Raimund Beer, J Vonmoos, M 2004 https://lup.lub.lu.se/record/262655 https://doi.org/10.1016/j.quascirev.2004.08.007 eng eng Elsevier https://lup.lub.lu.se/record/262655 http://dx.doi.org/10.1016/j.quascirev.2004.08.007 wos:000224648200005 scopus:4944258445 Quaternary Science Reviews; 23(20-22), pp 2101-2111 (2004) ISSN: 0277-3791 Geology contributiontojournal/article info:eu-repo/semantics/article text 2004 ftulundlup https://doi.org/10.1016/j.quascirev.2004.08.007 2023-02-01T23:32:39Z We analyse the 8200 yr BP cold event by comparing the high-resolution Be-10 record from the GRIP ice core from Central Greenland with the well-known tree ring Delta(14)C record. By transferring the absolute dated tree ring chronology to the ice core time scale, we show that the coldest phase in the GRIP record occurred around 8150 yr BP. Furthermore, this method allows us to disentangle production and climate effects on Be-10 and C-14 with important implications for the reconstruction of past solar activity, and changes in the carbon cycle and Be-10 transport. We show that, in principle, it is possible to infer changes in ocean circulation by comparing Be-10 and C-14 records. However, the duration of the 8200 yr BP event is too short to assign unambiguously a significant change in atmospheric C-14 concentration to changes in the global ocean circulation. Based on the comparison of Be-10 with climate records, one could argue that the 8200 yr BP cold event is triggered by a change towards lower solar activity. However, this link is questioned by the fact that around this period there are other similar and even stronger changes in solar activity that have no apparent connection to climate changes. (C) 2004 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Greenland GRIP ice core Lund University Publications (LUP) Greenland Quaternary Science Reviews 23 20-22 2101 2111 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology |
spellingShingle |
Geology Muscheler, Raimund Beer, J Vonmoos, M Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
topic_facet |
Geology |
description |
We analyse the 8200 yr BP cold event by comparing the high-resolution Be-10 record from the GRIP ice core from Central Greenland with the well-known tree ring Delta(14)C record. By transferring the absolute dated tree ring chronology to the ice core time scale, we show that the coldest phase in the GRIP record occurred around 8150 yr BP. Furthermore, this method allows us to disentangle production and climate effects on Be-10 and C-14 with important implications for the reconstruction of past solar activity, and changes in the carbon cycle and Be-10 transport. We show that, in principle, it is possible to infer changes in ocean circulation by comparing Be-10 and C-14 records. However, the duration of the 8200 yr BP event is too short to assign unambiguously a significant change in atmospheric C-14 concentration to changes in the global ocean circulation. Based on the comparison of Be-10 with climate records, one could argue that the 8200 yr BP cold event is triggered by a change towards lower solar activity. However, this link is questioned by the fact that around this period there are other similar and even stronger changes in solar activity that have no apparent connection to climate changes. (C) 2004 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Muscheler, Raimund Beer, J Vonmoos, M |
author_facet |
Muscheler, Raimund Beer, J Vonmoos, M |
author_sort |
Muscheler, Raimund |
title |
Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
title_short |
Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
title_full |
Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
title_fullStr |
Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
title_full_unstemmed |
Causes and timing of the 8200 yr BP event inferred from the comparison of the GRIP Be-10 and the tree ring Delta C-14 record |
title_sort |
causes and timing of the 8200 yr bp event inferred from the comparison of the grip be-10 and the tree ring delta c-14 record |
publisher |
Elsevier |
publishDate |
2004 |
url |
https://lup.lub.lu.se/record/262655 https://doi.org/10.1016/j.quascirev.2004.08.007 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland GRIP ice core |
genre_facet |
Greenland GRIP ice core |
op_source |
Quaternary Science Reviews; 23(20-22), pp 2101-2111 (2004) ISSN: 0277-3791 |
op_relation |
https://lup.lub.lu.se/record/262655 http://dx.doi.org/10.1016/j.quascirev.2004.08.007 wos:000224648200005 scopus:4944258445 |
op_doi |
https://doi.org/10.1016/j.quascirev.2004.08.007 |
container_title |
Quaternary Science Reviews |
container_volume |
23 |
container_issue |
20-22 |
container_start_page |
2101 |
op_container_end_page |
2111 |
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1766019342797897728 |