Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ...
A Pliocene (2.6-3.5 Ma) age is determined from glacial sediments studied in a 20m long, 4 m deep trench excavated in Heidemann Valley, Vestfold Hills, East Antarctica. The age determination is based on a combined study of amino acid racemization, diatoms, foraminifera, and magnetic polarity, and sup...
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ftdatacite:10.1594/pangaea.808548 2024-09-15T17:46:06+00:00 Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... Colhoun, Eric A Kiernan, Kevin W McConnell, Anne Quilty, Patrick G Fink, David Murray-Wallace, Colin V Whitehead, Jason M 2010 application/zip https://dx.doi.org/10.1594/pangaea.808548 https://doi.pangaea.de/10.1594/PANGAEA.808548 en eng PANGAEA https://dx.doi.org/10.1017/s0954102009990526 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Excavation International Polar Year 2007-2008 IPY article Collection Supplementary Publication Series of Datasets 2010 ftdatacite https://doi.org/10.1594/pangaea.80854810.1017/s0954102009990526 2024-08-01T10:51:52Z A Pliocene (2.6-3.5 Ma) age is determined from glacial sediments studied in a 20m long, 4 m deep trench excavated in Heidemann Valley, Vestfold Hills, East Antarctica. The age determination is based on a combined study of amino acid racemization, diatoms, foraminifera, and magnetic polarity, and supports earlier estimates of the age of the sedimentary section; all are beyond 14C range. Four till units are recognized and documented, and 16 subunits are identified. All are ascribed to deposition during a Late Pliocene glaciation that was probably the last time the entire Vestfold Hills was covered by an enlarged East Antarctic Ice Sheet (EAIS). Evidence for other more recent glacial events of the 'Vestfold Glaciation' may have been due to lateral expansion of the Sorsdal Glacier and limited expansion of the icesheet margin during the Last Glacial Maximum rather than a major expansion of the EAIS. The deposit appears to correlate with a marine deposition event recorded in Ocean Drilling Program Site 1166 in ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet International Polar Year IPY DataCite |
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op_collection_id |
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language |
English |
topic |
Excavation International Polar Year 2007-2008 IPY |
spellingShingle |
Excavation International Polar Year 2007-2008 IPY Colhoun, Eric A Kiernan, Kevin W McConnell, Anne Quilty, Patrick G Fink, David Murray-Wallace, Colin V Whitehead, Jason M Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
topic_facet |
Excavation International Polar Year 2007-2008 IPY |
description |
A Pliocene (2.6-3.5 Ma) age is determined from glacial sediments studied in a 20m long, 4 m deep trench excavated in Heidemann Valley, Vestfold Hills, East Antarctica. The age determination is based on a combined study of amino acid racemization, diatoms, foraminifera, and magnetic polarity, and supports earlier estimates of the age of the sedimentary section; all are beyond 14C range. Four till units are recognized and documented, and 16 subunits are identified. All are ascribed to deposition during a Late Pliocene glaciation that was probably the last time the entire Vestfold Hills was covered by an enlarged East Antarctic Ice Sheet (EAIS). Evidence for other more recent glacial events of the 'Vestfold Glaciation' may have been due to lateral expansion of the Sorsdal Glacier and limited expansion of the icesheet margin during the Last Glacial Maximum rather than a major expansion of the EAIS. The deposit appears to correlate with a marine deposition event recorded in Ocean Drilling Program Site 1166 in ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ... |
format |
Article in Journal/Newspaper |
author |
Colhoun, Eric A Kiernan, Kevin W McConnell, Anne Quilty, Patrick G Fink, David Murray-Wallace, Colin V Whitehead, Jason M |
author_facet |
Colhoun, Eric A Kiernan, Kevin W McConnell, Anne Quilty, Patrick G Fink, David Murray-Wallace, Colin V Whitehead, Jason M |
author_sort |
Colhoun, Eric A |
title |
Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
title_short |
Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
title_full |
Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
title_fullStr |
Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
title_full_unstemmed |
Granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from Heidemann Valley ... |
title_sort |
granulometry, geochemistry, amino acids, radiocarbon ages and paleomagnetics of samples from heidemann valley ... |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.808548 https://doi.pangaea.de/10.1594/PANGAEA.808548 |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet International Polar Year IPY |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet International Polar Year IPY |
op_relation |
https://dx.doi.org/10.1017/s0954102009990526 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.80854810.1017/s0954102009990526 |
_version_ |
1810494068660109312 |