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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Main Authors: Colhoun, Eric A, Kiernan, Kevin W, McConnell, Anne, Quilty, Patrick G, Fink, David, Murray-Wallace, Colin V, Whitehead, Jason M
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2010
Subjects:
IPY
Online Access:https://dx.doi.org/10.1594/pangaea.808548
https://doi.pangaea.de/10.1594/PANGAEA.808548
id ftdatacite:10.1594/pangaea.808548
record_format openpolar
spelling 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
institution Open Polar
collection DataCite
op_collection_id ftdatacite
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
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