New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden
The overall pattern of deglaciation of the southern part of the Scandinavian Ice Sheet has been considered established, although details of the chronology and ice sheet dynamics are less well known. Even less is known for the south Swedish Upland because the area was deglaciated mostly by stagnation...
Published in: | Geografiska Annaler: Series A, Physical Geography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Institutionen för naturgeografi och kvartärgeologi (INK)
2009
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-31406 https://doi.org/10.1111/j.1468-0459.2009.00358.x |
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ftstockholmuniv:oai:DiVA.org:su-31406 2023-05-15T16:40:12+02:00 New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden Johnsen, Timothy F. Alexanderson, Helena Fabel, Derek Freeman, Stewart PHT 2009 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-31406 https://doi.org/10.1111/j.1468-0459.2009.00358.x eng eng Institutionen för naturgeografi och kvartärgeologi (INK) Blackwell Publishing / Swedish Society for Anthropology and Geography Geografiska Annaler. Series A, Physical Geography, 0435-3676, 2009, 91A:2, s. 113-120 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-31406 doi:10.1111/j.1468-0459.2009.00358.x ISI:000266700400005 info:eu-repo/semantics/openAccess Geology Geologi Article in journal info:eu-repo/semantics/article text 2009 ftstockholmuniv https://doi.org/10.1111/j.1468-0459.2009.00358.x 2023-02-23T21:42:51Z The overall pattern of deglaciation of the southern part of the Scandinavian Ice Sheet has been considered established, although details of the chronology and ice sheet dynamics are less well known. Even less is known for the south Swedish Upland because the area was deglaciated mostly by stagnation. Within this area lies the conspicuous Vimmerby moraine, for which we have used the terrestrial cosmogenic nuclide (10Be) exposure dating technique to derive the exposure age of six glacially transported boulders. The six 10Be cosmogenic ages are internally consistent, ranging from 14.9 ± 1.5 to 12.4 ± 1.3 ka with a mean of 13.6 ±0.9 ka. Adjusting for the effects of surface erosion, snow burial and glacio-isostatic rebound causes the mean age to increase only by c. 6% to c. 14.4± 0.9 ka. The 10Be derived age for the Vimmerby moraine is in agreement with previous estimates forthe timing of deglaciation based on radiocarbon dating and varve chronology. This result shows promise for further terrestrial cosmogenic nuclide exposure studies in southern Sweden. Article in Journal/Newspaper Ice Sheet Stockholm University: Publications (DiVA) Geografiska Annaler: Series A, Physical Geography 91 2 113 120 |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
Geology Geologi |
spellingShingle |
Geology Geologi Johnsen, Timothy F. Alexanderson, Helena Fabel, Derek Freeman, Stewart PHT New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
topic_facet |
Geology Geologi |
description |
The overall pattern of deglaciation of the southern part of the Scandinavian Ice Sheet has been considered established, although details of the chronology and ice sheet dynamics are less well known. Even less is known for the south Swedish Upland because the area was deglaciated mostly by stagnation. Within this area lies the conspicuous Vimmerby moraine, for which we have used the terrestrial cosmogenic nuclide (10Be) exposure dating technique to derive the exposure age of six glacially transported boulders. The six 10Be cosmogenic ages are internally consistent, ranging from 14.9 ± 1.5 to 12.4 ± 1.3 ka with a mean of 13.6 ±0.9 ka. Adjusting for the effects of surface erosion, snow burial and glacio-isostatic rebound causes the mean age to increase only by c. 6% to c. 14.4± 0.9 ka. The 10Be derived age for the Vimmerby moraine is in agreement with previous estimates forthe timing of deglaciation based on radiocarbon dating and varve chronology. This result shows promise for further terrestrial cosmogenic nuclide exposure studies in southern Sweden. |
format |
Article in Journal/Newspaper |
author |
Johnsen, Timothy F. Alexanderson, Helena Fabel, Derek Freeman, Stewart PHT |
author_facet |
Johnsen, Timothy F. Alexanderson, Helena Fabel, Derek Freeman, Stewart PHT |
author_sort |
Johnsen, Timothy F. |
title |
New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
title_short |
New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
title_full |
New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
title_fullStr |
New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
title_full_unstemmed |
New 10Be cosmogenic ages from the Vimmerby moraine confirm the timing of Scandinavian Ice Sheet deglaciation in southern Sweden |
title_sort |
new 10be cosmogenic ages from the vimmerby moraine confirm the timing of scandinavian ice sheet deglaciation in southern sweden |
publisher |
Institutionen för naturgeografi och kvartärgeologi (INK) |
publishDate |
2009 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-31406 https://doi.org/10.1111/j.1468-0459.2009.00358.x |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
Geografiska Annaler. Series A, Physical Geography, 0435-3676, 2009, 91A:2, s. 113-120 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-31406 doi:10.1111/j.1468-0459.2009.00358.x ISI:000266700400005 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/j.1468-0459.2009.00358.x |
container_title |
Geografiska Annaler: Series A, Physical Geography |
container_volume |
91 |
container_issue |
2 |
container_start_page |
113 |
op_container_end_page |
120 |
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1766030583723458560 |