NEW (BE)-B-10 COSMOGENIC AGES FROM THE VIMMERBY MORAINE CONFIRM THE TIMING OF SCANDINAVIAN ICE SHEET DEGLACIATION IN SOUTHERN SWEDEN
(2009) In Geografiska Annaler. Series A. Physical Geography 91A(2). p.113-120- Abstract
- 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 (Be-10) exposure dating technique to derive the exposure age of six glacially transported boulders. The six Be-10 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... (More)
- 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 (Be-10) exposure dating technique to derive the exposure age of six glacially transported boulders. The six Be-10 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 Be-10 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4450044
- author
- Johnsen, Timothy F. ; Alexanderson, Helena LU ; Fabel, Derek and Freeman, Stewart P. H. T.
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- terrestrial cosmogenic nuclide (Be-10) exposure dating, deglaciation, Scandinavian Ice Sheet, Vimmerby moraine, Sweden, south Swedish Upland
- in
- Geografiska Annaler. Series A. Physical Geography
- volume
- 91A
- issue
- 2
- pages
- 113 - 120
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000266700400005
- scopus:67049136180
- ISSN
- 0435-3676
- DOI
- 10.1111/j.1468-0459.2009.00358.x
- language
- English
- LU publication?
- no
- id
- 08e12bf4-fa5d-4385-a981-b27242a36cbd (old id 4450044)
- date added to LUP
- 2016-04-01 12:07:53
- date last changed
- 2022-01-26 23:14:06
@article{08e12bf4-fa5d-4385-a981-b27242a36cbd, abstract = {{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 (Be-10) exposure dating technique to derive the exposure age of six glacially transported boulders. The six Be-10 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 Be-10 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.}}, author = {{Johnsen, Timothy F. and Alexanderson, Helena and Fabel, Derek and Freeman, Stewart P. H. T.}}, issn = {{0435-3676}}, keywords = {{terrestrial cosmogenic nuclide (Be-10) exposure dating; deglaciation; Scandinavian Ice Sheet; Vimmerby moraine; Sweden; south Swedish Upland}}, language = {{eng}}, number = {{2}}, pages = {{113--120}}, publisher = {{Wiley-Blackwell}}, series = {{Geografiska Annaler. Series A. Physical Geography}}, title = {{NEW (BE)-B-10 COSMOGENIC AGES FROM THE VIMMERBY MORAINE CONFIRM THE TIMING OF SCANDINAVIAN ICE SHEET DEGLACIATION IN SOUTHERN SWEDEN}}, url = {{http://dx.doi.org/10.1111/j.1468-0459.2009.00358.x}}, doi = {{10.1111/j.1468-0459.2009.00358.x}}, volume = {{91A}}, year = {{2009}}, }