Atlantic Deglacial Benthic Foraminifer Stable Isotope Data Waelbroeck, C.; Skinner, L.C.; Labeyrie, L.D.; Duplessy, J.-C.; Michel, E.; Vazquez Riveiros, N.; Gherardi, J.-M.; Dewild, J.F. Waelbroeck, C. Skinner, L.C. Labeyrie, L.D. Duplessy, J.-C. Michel, E. Vazquez Riveiros, N. Gherardi, J.-M. Dewild, J.F. Meridional Overturning Circulation (MOC) earth science/paleoclimate/paleoceanography (delta 13C,Cibicidoides sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Melonis barleeanus,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Melonis barleeanus,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Cibicidoides sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Cibicides kullenbergi,null,per mil PDB,null,paleoceanography,null,null,N,>150um) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Cibicides kullenbergi,null,per mil PDB,null,paleoceanography,null,null,N,>150um) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (KNR31-GPC5>LATITUDE 33.6867>LONGITUDE -57.615) (GeoB1711>LATITUDE -23.315>LONGITUDE 12.3767) (MD95-2037>LATITUDE 37.0872>LONGITUDE -32.0312) (ENAM93-21>LATITUDE 62.7385>LONGITUDE -3.9987) (M35003-4>LATITUDE 12.08>LONGITUDE -61.25) (NA87-22>LATITUDE 55.5>LONGITUDE -14.7) (MD07-3076Q>LATITUDE -44.1532>LONGITUDE -14.2283) (CH69-K9>LATITUDE 41.7567>LONGITUDE -47.35) Well-dated benthic foraminifer oxygen isotopic records (d18O) from different water depths and locations within the Atlantic Ocean exhibit distinct patterns and significant differences in timing over the last deglaciation. This has two implications: on the one hand, it confirms that benthic d18O cannot be used as a global correlation tool with millennial-scale precision, but on the other hand, the combination of benthic isotopic records with independent dating provides a wealth of information on past circulation changes. Comparing new South Atlantic benthic isotopic data with published benthic isotopic records, we show that (1) circulation changes first affected benthic d18O in the 1000-2200 m range, with marked decreases in benthic d18O taking place at ~17.5 cal. kyr B.P. (ka) due to the southward propagation of brine waters generated in the Nordic Seas during Heinrich Stadial 1 (HS1) cold period; (2) the arrival of d18O-depleted deglacial meltwater took place later at deeper North Atlantic sites; (3) hydrographic changes recorded in North Atlantic cores below 3000 m during HS1 do not correspond to simple alternations between northern- and southern-sourced water but likely reflect instead the incursion of brine-generated deep water of northern as well as southern origin; and (4) South Atlantic waters at ~44°S and ~3800 m depth remained isolated from better-ventilated northern-sourced water masses until after the resumption of North Atlantic Deep Water (NADW) formation at the onset of the Bølling-Allerod, which led to the propagation of NADW into the South Atlantic. STUDY NOTES: Waelbroeck et al. 2011 stable isotope data (d18O and d13C) measured on benthic foraminifers for 8 cores in the Atlantic Ocean NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Waelbroeck, C. Investigator : Skinner, L.C. Investigator : Labeyrie, L.D. Investigator : Duplessy, J.-C. Investigator : Michel, E. Investigator : Vazquez Riveiros, N. Investigator : Gherardi, J.-M. Investigator : Dewild, J.F. 2014-05-13 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16437 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011k09.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011enam.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011geob1711.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011m35003.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-3076q.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-2037.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011na8722.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011gpc5.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011k09.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011enam.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011geob1711.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011m35003.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-3076q.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-2037.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011na8722.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011gpc5.txt English https://www.ncdc.noaa.gov/paleo/study/16437 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011k09.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011enam.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011geob1711.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011m35003.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-3076q.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011-2037.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011na8722.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/waelbroeck2011/waelbroeck2011gpc5.txt C. Waelbroeck, L.C. Skinner, L. Labeyrie, J.-C. Duplessy, E. Michel, N. Vazquez Riveiros, J.-M. Gherardi, and F. Dewilde2011The timing of deglacial circulation changes in the AtlanticPaleoceanography26310.1029/2010PA002007http://onlinelibrary.wiley.com/doi/10.1029/2010PA002007/abstract START YEAR: 40104 cal yr BP * END YEAR: 0 cal yr BP -61.25 -44.1532 12.3767 62.7385