Deglaciation and weathering of Larsemann Hills, East Antarctica
In situ cosmogenic 10Be exposure dating, radiocarbon determinations, salt and sediment geochemistry, and rock weathering observations indicate that parts of Larsemann Hills, East Antarctica have been subaerially exposed throughout much of the last glacial cycle, with the last glaciation occurring pr...
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ftunivtasecite:oai:ecite.utas.edu.au:57964 2023-05-15T13:35:38+02:00 Deglaciation and weathering of Larsemann Hills, East Antarctica Kiernan, K Gore, DB Fink, D White, DA McConnell, A Sigurdsson, IA 2009 application/pdf http://journals.cambridge.org https://doi.org/10.1017/S0954102009002028 http://ecite.utas.edu.au/57964 en eng Cambridge Univ Press http://ecite.utas.edu.au/57964/2/Kiernan[2].pdf http://dx.doi.org/10.1017/S0954102009002028 Kiernan, K and Gore, DB and Fink, D and White, DA and McConnell, A and Sigurdsson, IA, Deglaciation and weathering of Larsemann Hills, East Antarctica, Antarctic Science, 21, (4) pp. 373-382. ISSN 0954-1020 (2009) [Refereed Article] http://ecite.utas.edu.au/57964 Earth Sciences Physical Geography and Environmental Geoscience Geomorphology and Regolith and Landscape Evolution Refereed Article PeerReviewed 2009 ftunivtasecite https://doi.org/10.1017/S0954102009002028 2019-12-13T21:29:39Z In situ cosmogenic 10Be exposure dating, radiocarbon determinations, salt and sediment geochemistry, and rock weathering observations indicate that parts of Larsemann Hills, East Antarctica have been subaerially exposed throughout much of the last glacial cycle, with the last glaciation occurring prior to 100 ka bp. Salt-enhanced subaerial weathering, coupled with a paucity of glacial erratics, made exposure age dating challenging. Rapid subaerial surface lowering in some places means that some exposure ages may underestimate the true age of deglaciation. Despite this uncertainty, the data are consistent with the absence of overriding by a thick ice sheet during the Last Glacial Maximum 2018 ka bp. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet eCite UTAS (University of Tasmania) East Antarctica Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Antarctic Science 21 04 373 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Geomorphology and Regolith and Landscape Evolution |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Geomorphology and Regolith and Landscape Evolution Kiernan, K Gore, DB Fink, D White, DA McConnell, A Sigurdsson, IA Deglaciation and weathering of Larsemann Hills, East Antarctica |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Geomorphology and Regolith and Landscape Evolution |
description |
In situ cosmogenic 10Be exposure dating, radiocarbon determinations, salt and sediment geochemistry, and rock weathering observations indicate that parts of Larsemann Hills, East Antarctica have been subaerially exposed throughout much of the last glacial cycle, with the last glaciation occurring prior to 100 ka bp. Salt-enhanced subaerial weathering, coupled with a paucity of glacial erratics, made exposure age dating challenging. Rapid subaerial surface lowering in some places means that some exposure ages may underestimate the true age of deglaciation. Despite this uncertainty, the data are consistent with the absence of overriding by a thick ice sheet during the Last Glacial Maximum 2018 ka bp. |
format |
Article in Journal/Newspaper |
author |
Kiernan, K Gore, DB Fink, D White, DA McConnell, A Sigurdsson, IA |
author_facet |
Kiernan, K Gore, DB Fink, D White, DA McConnell, A Sigurdsson, IA |
author_sort |
Kiernan, K |
title |
Deglaciation and weathering of Larsemann Hills, East Antarctica |
title_short |
Deglaciation and weathering of Larsemann Hills, East Antarctica |
title_full |
Deglaciation and weathering of Larsemann Hills, East Antarctica |
title_fullStr |
Deglaciation and weathering of Larsemann Hills, East Antarctica |
title_full_unstemmed |
Deglaciation and weathering of Larsemann Hills, East Antarctica |
title_sort |
deglaciation and weathering of larsemann hills, east antarctica |
publisher |
Cambridge Univ Press |
publishDate |
2009 |
url |
http://journals.cambridge.org https://doi.org/10.1017/S0954102009002028 http://ecite.utas.edu.au/57964 |
long_lat |
ENVELOPE(76.217,76.217,-69.400,-69.400) |
geographic |
East Antarctica Larsemann Hills |
geographic_facet |
East Antarctica Larsemann Hills |
genre |
Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Science Antarctica East Antarctica Ice Sheet |
op_relation |
http://ecite.utas.edu.au/57964/2/Kiernan[2].pdf http://dx.doi.org/10.1017/S0954102009002028 Kiernan, K and Gore, DB and Fink, D and White, DA and McConnell, A and Sigurdsson, IA, Deglaciation and weathering of Larsemann Hills, East Antarctica, Antarctic Science, 21, (4) pp. 373-382. ISSN 0954-1020 (2009) [Refereed Article] http://ecite.utas.edu.au/57964 |
op_doi |
https://doi.org/10.1017/S0954102009002028 |
container_title |
Antarctic Science |
container_volume |
21 |
container_issue |
04 |
container_start_page |
373 |
_version_ |
1766068146241798144 |