Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep
A detailed TEX86 sea surface temperature record is presented from a well-dated hemipelagic sedimentary sequence drilled in Palmer Deep, on the western Antarctic Peninsula continental margin (ODP Hole 1098B; 1010 m). To test the regional utility of the TEX86 proxy, surface sediment samples with paire...
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Digital Commons @ University of South Florida
2007
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ftusouthflorida:oai:digitalcommons.usf.edu:msc_facpub-1579 2023-07-30T03:58:51+02:00 Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep Shevenell, Amelia E. Ingalls, A. E. Domack, E. W. 2007-01-01T08:00:00Z application/pdf https://digitalcommons.usf.edu/msc_facpub/582 https://doi.org/10.3133/of2007-1047 https://digitalcommons.usf.edu/context/msc_facpub/article/1579/viewcontent/of2007_1047ea131.pdf unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/582 doi:10.3133/of2007-1047 https://digitalcommons.usf.edu/context/msc_facpub/article/1579/viewcontent/of2007_1047ea131.pdf default Marine Science Faculty Publications Life Sciences conference 2007 ftusouthflorida https://doi.org/10.3133/of2007-1047 2023-07-13T20:45:14Z A detailed TEX86 sea surface temperature record is presented from a well-dated hemipelagic sedimentary sequence drilled in Palmer Deep, on the western Antarctic Peninsula continental margin (ODP Hole 1098B; 1010 m). To test the regional utility of the TEX86 proxy, surface sediment samples with paired CTD casts were acquired and results show the promise of TEX86 in this region. Down core TEX86-derived temperatures at Site 1098 range between 0 and 6°C during the Holocene (0-12 ky). A long-term Holocene cooling of ~3°C is suggested and is punctuated by millennial scale temperature variability. The TEX86 temperature record from Palmer Deep is consistent with temperature trends recorded in west Antarctic ice cores and southeast Pacific marine sediments. This observation is consistent with hypotheses that favor atmospheric (via the Southern Hemisphere westerly winds), not thermohaline, control over the hydrography of Palmer Deep. Conference Object Antarc* Antarctic Antarctic Peninsula University of South Florida St. Petersburg: Digital USFSP Antarctic Antarctic Peninsula Pacific Palmer Deep ENVELOPE(-64.400,-64.400,-64.950,-64.950) |
institution |
Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Life Sciences |
spellingShingle |
Life Sciences Shevenell, Amelia E. Ingalls, A. E. Domack, E. W. Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
topic_facet |
Life Sciences |
description |
A detailed TEX86 sea surface temperature record is presented from a well-dated hemipelagic sedimentary sequence drilled in Palmer Deep, on the western Antarctic Peninsula continental margin (ODP Hole 1098B; 1010 m). To test the regional utility of the TEX86 proxy, surface sediment samples with paired CTD casts were acquired and results show the promise of TEX86 in this region. Down core TEX86-derived temperatures at Site 1098 range between 0 and 6°C during the Holocene (0-12 ky). A long-term Holocene cooling of ~3°C is suggested and is punctuated by millennial scale temperature variability. The TEX86 temperature record from Palmer Deep is consistent with temperature trends recorded in west Antarctic ice cores and southeast Pacific marine sediments. This observation is consistent with hypotheses that favor atmospheric (via the Southern Hemisphere westerly winds), not thermohaline, control over the hydrography of Palmer Deep. |
format |
Conference Object |
author |
Shevenell, Amelia E. Ingalls, A. E. Domack, E. W. |
author_facet |
Shevenell, Amelia E. Ingalls, A. E. Domack, E. W. |
author_sort |
Shevenell, Amelia E. |
title |
Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
title_short |
Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
title_full |
Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
title_fullStr |
Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
title_full_unstemmed |
Orbital and Atmospheric Forcing of Western Antarctic Peninsula Climate in the Holocene: The TEX 86 Paleotemperature Record of Palmer Deep |
title_sort |
orbital and atmospheric forcing of western antarctic peninsula climate in the holocene: the tex 86 paleotemperature record of palmer deep |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2007 |
url |
https://digitalcommons.usf.edu/msc_facpub/582 https://doi.org/10.3133/of2007-1047 https://digitalcommons.usf.edu/context/msc_facpub/article/1579/viewcontent/of2007_1047ea131.pdf |
long_lat |
ENVELOPE(-64.400,-64.400,-64.950,-64.950) |
geographic |
Antarctic Antarctic Peninsula Pacific Palmer Deep |
geographic_facet |
Antarctic Antarctic Peninsula Pacific Palmer Deep |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/582 doi:10.3133/of2007-1047 https://digitalcommons.usf.edu/context/msc_facpub/article/1579/viewcontent/of2007_1047ea131.pdf |
op_rights |
default |
op_doi |
https://doi.org/10.3133/of2007-1047 |
_version_ |
1772809585591058432 |