Palmer Deep, Antarctica Holocene TEX86 Sea Surface Temperature Data Shevenell, A.E.; Ingalls, A.; Domack, E. Shevenell, A.E. Ingalls, A. Domack, E. earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,corrected,null,N,null) earth science/paleoclimate/paleoceanography (tetraether index of 86 carbon atoms,null,null,dimensionless,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,glycerol dialkyl glycerol tetraether index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,TEX86) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (ODP1098B>LATITUDE -64.87>LONGITUDE -64.2) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Shevenell, A.E. Investigator : Ingalls, A. Investigator : Domack, E. 2007-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/6413 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1098b-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shevenell2007 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1098b-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shevenell2007 English https://www.ncdc.noaa.gov/paleo/study/6413 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1098b-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/shevenell2007 Shevenell, A.E., A. Ingalls, and E. Domack. 2007. Orbital and atmospheric forcing of western Antarctic Peninsula climate in the Holocene: The TEX86 paleotemperature record of Palmer Deep, in Antarctica: A Keystone in a Changing World - Online Proceedings of the 10th ISAES X, edited by A. K. Cooper and C. R. Raymond et al., USGS Open-File Report 2007-1047, Extended Abstract 131, 4 p. START YEAR: 11768 14C yr BP * END YEAR: 79 14C yr BP -64.2 -64.87 -64.2 -64.87