South Atlantic Late Pleistocene Sea Surface Temperature, Dust and Paleoproductivity Data Anderson, R.F.; Fleisher, M.Q.; Sachs, J.P. Anderson, R.F. Fleisher, M.Q. Sachs, J.P. earth science/paleoclimate/paleoceanography (230Th,sediment,null,disintegration per minute per gram,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (mineral matter,sediment,null,disintegration per minute per gram,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (calcium carbonate,sediment,null,percent,null,paleoceanography,null,carbon coulometry,N,null) earth science/paleoclimate/paleoceanography (alkenone,null,null,parts per billion,null,paleoceanography,null,gas chromatography,N,null) earth science/paleoclimate/paleoceanography (alkenone unsaturation index Uk37 prime,null,null,dimensionless,null,paleoceanography,null,gas chromatography,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (230Th excess,sediment,null,disintegration per minute per gram,null,paleoceanography,corrected,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (alkenone unsaturation index Uk37,null,null,dimensionless,null,paleoceanography,null,gas chromatography,N,null) earth science/paleoclimate/paleoceanography (232Th,sediment,null,disintegration per minute per gram,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (238U,sediment,one standard deviation,disintegration per minute per gram,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (organic carbon,sediment,null,percent,null,paleoceanography,null,elemental analysis,N,null) earth science/paleoclimate/paleoceanography (accumulation rate,sediment,one standard deviation,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (232Th,sediment,one standard deviation,disintegration per minute per gram,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (230Th excess,sediment,one standard deviation,disintegration per minute per gram,null,paleoceanography,corrected,null,N,initial unsupported 230Th concentration; corrected for ingrowth of 230Th from authigenic and detrital (lithogenic) uranium) earth science/paleoclimate/paleoceanography (biogenic silica,sediment,null,percent,null,paleoceanography,null,spectrophotometry,N,null) earth science/paleoclimate/paleoceanography (230Th,sediment,one standard deviation,disintegration per minute per gram,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (238U,sediment,null,disintegration per minute per gram,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (accumulation rate,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,sediment flux) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean (TN057-21-PC2 >LATITUDE -41.13>LONGITUDE 7.82) (TN057-6>LATITUDE -42.9>LONGITUDE 8.9) A detailed record of sea surface temperature from sediments of the Cape Basin in the subtropical South Atlantic indicates a previously undocumented progression of marine climate change between 41 and 18 thousand years before the present (ky B.P.), during the last glacial period. Whereas marine records typically indicate a long-term cooling into the Last Glacial Maximum (around 21 ky B.P.) consistent with gradually increasing global ice volume, the Cape Basin record documents an interval of substantial temperate ocean warming from 41 to 25 ky B.P. The pattern is similar to that expected in response to changes in insolation owing to variations in Earth's tilt. STUDY NOTES: Lithogenic material fluxes of organic carbon, biogenic opal and alkenones over the past 100,000 years, determined using the 230Th-normalization method. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Anderson, R.F. Investigator : Fleisher, M.Q. Investigator : Sachs, J.P. 2014-05-17 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16464 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-21pc2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-06pc4.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-21pc2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-06pc4.txt English https://www.ncdc.noaa.gov/paleo/study/16464 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-21pc2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-06pc4.txt Anderson, R.F., S. Barker, M.Q. Fleisher, R. Gersonde, S.L. Goldstein, G. Kuhn, P.G. Mortyn, K. Pahnke, and J.P. Sachs2014Biological response to millennial variability of dust supply in the subantarctic South Atlantic OceanPhilosophical Transactions of The Royal Society Ahttp://rsta.royalsocietypublishing.org Sachs, J.P., R.F. Anderson, and S.J. Lehman. 2001. Glacial Surface Temperatures of the Southeast Atlantic Ocean. Science, Vol. 293, pp. 2077 - 2079. Francois, R., M. Frank, M.M.R. v. d. Loeff, and M.P. Bacon2004230Th normalization: An essential tool for interpreting sedimentary fluxes during the late QuaternaryPaleoceanography19PA101810.1029/2003PA000939 Pahnke, K., and J.P. Sachs. 2006. Sea surface temperatures of southern midlatitudes 0-160 kyr B.P. Paleoceanography, 21, PA2003. Julian P. Sachs and Robert F. Anderson2005Fidelity of alkenone paleotemperatures in southern Cape Basin sediment driftsPaleoceanographyPA108218410.1029/2002PA000862http://onlinelibrary.wiley.com/doi/10.1029/2002PA000862/abstract Julian P. Sachs and Robert F. Anderson 2004Increased productivity in the subantarctic ocean during Heinrich eventsNature4341118-112110.1038/nature03544http://www.nature.com/nature/journal/v434/n7037/abs/nature03544.html Martinez-Garcia, A., D.M. Sigman, H. Ren, R.F. Anderson, M. Straub, D.A. Hodell, S.L. Jaccard, T.I. Eglinton, and G.H. Haug2014Iron Fertilization of the Subantarctic Ocean During the Last Ice AgeScience34361771347-135010.1126/science.1246848http://www.sciencemag.org/content/343/6177/1347.abstract Stephen Barker and Paula Diz2014Timing of the descent into the last ice age determined by the bipolar seesawPaleoceanography10.1002/2014PA002623http://onlinelibrary.wiley.com/doi/10.1002/2014PA002623/abstract START YEAR: 101960 cal yr BP * END YEAR: 2010 cal yr BP 7.82 -42.9 8.9 -41.13