Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica?
Cosmogenic nuclide exposure dating of glacial clasts is becoming a common and robust method for reconstructing the history of glaciers and ice sheets. In Antarctica, however, many samples exhibit cosmogenic nuclide ‘inheritance’ as a result of sediment recycling and exposure to cosmic radiation duri...
Published in: | Quaternary Geochronology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier BV
2011
|
Subjects: | |
Online Access: | http://eprints.gla.ac.uk/53833/ |
id |
ftuglasgow:oai:eprints.gla.ac.uk:53833 |
---|---|
record_format |
openpolar |
spelling |
ftuglasgow:oai:eprints.gla.ac.uk:53833 2023-05-15T13:36:03+02:00 Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? White, D. Fulop, R Bishop, P. Mackintosh, A. Cook, G. 2011 http://eprints.gla.ac.uk/53833/ unknown Elsevier BV White, D., Fulop, R., Bishop, P. <http://eprints.gla.ac.uk/view/author/10245.html>, Mackintosh, A. and Cook, G. <http://eprints.gla.ac.uk/view/author/5255.html> (2011) Can in situ cosmogenic 14C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? Quaternary Geochronology <http://eprints.gla.ac.uk/view/journal_volume/Quaternary_Geochronology.html>, 6(3-4), pp. 289-294. (doi:10.1016/j.quageo.2011.03.004 <http://dx.doi.org/10.1016/j.quageo.2011.03.004>) QE Geology Articles PeerReviewed 2011 ftuglasgow 2021-09-23T22:34:30Z Cosmogenic nuclide exposure dating of glacial clasts is becoming a common and robust method for reconstructing the history of glaciers and ice sheets. In Antarctica, however, many samples exhibit cosmogenic nuclide ‘inheritance’ as a result of sediment recycling and exposure to cosmic radiation during previous ice free periods. In-situ cosmogenic 14 C, in combination with longer lived nuclides such as 10 Be, can be used to detect inheritance because the relatively short half-life of 14 C means that in-situ 14C acquired in exposure during previous interglacials decays away while the sample locality is covered by ice during the subsequent glacial. Measurements of in-situ 14 C in clasts from the last deglaciation of the Framnes Mountains in East Antarctica provide deglaciation ages that are concordant with existing 26 Al and 10 Be ages, suggesting that in this area, the younger population of erratics contain limited inheritance. Article in Journal/Newspaper Antarc* Antarctica East Antarctica University of Glasgow: Enlighten - Publications East Antarctica Framnes ENVELOPE(-60.750,-60.750,-65.983,-65.983) Framnes Mountains ENVELOPE(62.583,62.583,-67.833,-67.833) Quaternary Geochronology 6 3-4 289 294 |
institution |
Open Polar |
collection |
University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
unknown |
topic |
QE Geology |
spellingShingle |
QE Geology White, D. Fulop, R Bishop, P. Mackintosh, A. Cook, G. Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
topic_facet |
QE Geology |
description |
Cosmogenic nuclide exposure dating of glacial clasts is becoming a common and robust method for reconstructing the history of glaciers and ice sheets. In Antarctica, however, many samples exhibit cosmogenic nuclide ‘inheritance’ as a result of sediment recycling and exposure to cosmic radiation during previous ice free periods. In-situ cosmogenic 14 C, in combination with longer lived nuclides such as 10 Be, can be used to detect inheritance because the relatively short half-life of 14 C means that in-situ 14C acquired in exposure during previous interglacials decays away while the sample locality is covered by ice during the subsequent glacial. Measurements of in-situ 14 C in clasts from the last deglaciation of the Framnes Mountains in East Antarctica provide deglaciation ages that are concordant with existing 26 Al and 10 Be ages, suggesting that in this area, the younger population of erratics contain limited inheritance. |
format |
Article in Journal/Newspaper |
author |
White, D. Fulop, R Bishop, P. Mackintosh, A. Cook, G. |
author_facet |
White, D. Fulop, R Bishop, P. Mackintosh, A. Cook, G. |
author_sort |
White, D. |
title |
Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
title_short |
Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
title_full |
Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
title_fullStr |
Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
title_full_unstemmed |
Can in situ cosmogenic 14 C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? |
title_sort |
can in situ cosmogenic 14 c be used to assess the influence of clast recycling on exposure dating of ice retreat in antarctica? |
publisher |
Elsevier BV |
publishDate |
2011 |
url |
http://eprints.gla.ac.uk/53833/ |
long_lat |
ENVELOPE(-60.750,-60.750,-65.983,-65.983) ENVELOPE(62.583,62.583,-67.833,-67.833) |
geographic |
East Antarctica Framnes Framnes Mountains |
geographic_facet |
East Antarctica Framnes Framnes Mountains |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_relation |
White, D., Fulop, R., Bishop, P. <http://eprints.gla.ac.uk/view/author/10245.html>, Mackintosh, A. and Cook, G. <http://eprints.gla.ac.uk/view/author/5255.html> (2011) Can in situ cosmogenic 14C be used to assess the influence of clast recycling on exposure dating of ice retreat in Antarctica? Quaternary Geochronology <http://eprints.gla.ac.uk/view/journal_volume/Quaternary_Geochronology.html>, 6(3-4), pp. 289-294. (doi:10.1016/j.quageo.2011.03.004 <http://dx.doi.org/10.1016/j.quageo.2011.03.004>) |
container_title |
Quaternary Geochronology |
container_volume |
6 |
container_issue |
3-4 |
container_start_page |
289 |
op_container_end_page |
294 |
_version_ |
1766073842836439040 |