Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica
Abstract A marine sediment core collected from the Nordenskjold Basin, to the south of the Drygalski Ice Tongue, provides new sedimentological and chronological data for reconstructing the Pleistocene glacial history and palaeoenvironmental evolution of Victoria Land. The core consists of an over co...
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Language: | English |
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Cambridge University Press (CUP)
2007
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Online Access: | http://dx.doi.org/10.1017/s0954102007000430 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000430 |
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crcambridgeupr:10.1017/s0954102007000430 2024-06-23T07:45:58+00:00 Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica Finocchiaro, Furio Baroni, Carlo Colizza, Ester Ivaldi, Roberta 2007 http://dx.doi.org/10.1017/s0954102007000430 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000430 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 19, issue 3, page 373-377 ISSN 0954-1020 1365-2079 journal-article 2007 crcambridgeupr https://doi.org/10.1017/s0954102007000430 2024-06-05T04:04:52Z Abstract A marine sediment core collected from the Nordenskjold Basin, to the south of the Drygalski Ice Tongue, provides new sedimentological and chronological data for reconstructing the Pleistocene glacial history and palaeoenvironmental evolution of Victoria Land. The core consists of an over consolidated biogenic mud covered with glacial diamicton; Holocene diatomaceous mud lies on top of the sequence. Radiocarbon dates of the acid insoluble organic matter indicate a pre-Last Glacial Maximum age (>24kyr) for the biogenic mud at the base of the sequence. From this we can presume that at least this portion of the western Ross Sea was deglaciated during Marine Isotope Stage 3 and enjoyed open marine conditions. Our results are consistent with recent findings of pre-Holocene raised beaches at Cape Ross and in the Terra Nova Bay area. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Ross Sea Victoria Land Cambridge University Press Cape Ross ENVELOPE(167.750,167.750,-77.500,-77.500) Drygalski ENVELOPE(-61.000,-61.000,-64.717,-64.717) Drygalski Ice Tongue ENVELOPE(163.500,163.500,-75.400,-75.400) Nordenskjold Basin ENVELOPE(165.000,165.000,-76.050,-76.050) Ross Sea Terra Nova Bay Victoria Land Antarctic Science 19 3 373 377 |
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Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract A marine sediment core collected from the Nordenskjold Basin, to the south of the Drygalski Ice Tongue, provides new sedimentological and chronological data for reconstructing the Pleistocene glacial history and palaeoenvironmental evolution of Victoria Land. The core consists of an over consolidated biogenic mud covered with glacial diamicton; Holocene diatomaceous mud lies on top of the sequence. Radiocarbon dates of the acid insoluble organic matter indicate a pre-Last Glacial Maximum age (>24kyr) for the biogenic mud at the base of the sequence. From this we can presume that at least this portion of the western Ross Sea was deglaciated during Marine Isotope Stage 3 and enjoyed open marine conditions. Our results are consistent with recent findings of pre-Holocene raised beaches at Cape Ross and in the Terra Nova Bay area. |
format |
Article in Journal/Newspaper |
author |
Finocchiaro, Furio Baroni, Carlo Colizza, Ester Ivaldi, Roberta |
spellingShingle |
Finocchiaro, Furio Baroni, Carlo Colizza, Ester Ivaldi, Roberta Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
author_facet |
Finocchiaro, Furio Baroni, Carlo Colizza, Ester Ivaldi, Roberta |
author_sort |
Finocchiaro, Furio |
title |
Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
title_short |
Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
title_full |
Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
title_fullStr |
Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
title_full_unstemmed |
Pre-LGM open-water conditions south of the Drygalski Ice Tongue, Ross Sea, Antarctica |
title_sort |
pre-lgm open-water conditions south of the drygalski ice tongue, ross sea, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s0954102007000430 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000430 |
long_lat |
ENVELOPE(167.750,167.750,-77.500,-77.500) ENVELOPE(-61.000,-61.000,-64.717,-64.717) ENVELOPE(163.500,163.500,-75.400,-75.400) ENVELOPE(165.000,165.000,-76.050,-76.050) |
geographic |
Cape Ross Drygalski Drygalski Ice Tongue Nordenskjold Basin Ross Sea Terra Nova Bay Victoria Land |
geographic_facet |
Cape Ross Drygalski Drygalski Ice Tongue Nordenskjold Basin Ross Sea Terra Nova Bay Victoria Land |
genre |
Antarc* Antarctic Science Antarctica Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Science Antarctica Ross Sea Victoria Land |
op_source |
Antarctic Science volume 19, issue 3, page 373-377 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102007000430 |
container_title |
Antarctic Science |
container_volume |
19 |
container_issue |
3 |
container_start_page |
373 |
op_container_end_page |
377 |
_version_ |
1802643239216349184 |