noaa-ocean-13137 Atlantic and Pacific 800 KYr Benthic d18O Stacks Lisiecki, L.E.; Raymo, M.E. Atlantic and Pacific 800 KYr Benthic d18O Stacks 2012-07-18 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/13137 Investigator L.E. Lisiecki Investigator M.E. Raymo earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil,null,paleoceanography,averaged,null,N,Atlantic sites earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil,null,paleoceanography,averaged,null,N,Pacific sites earth science paleoclimate paleocean oxygen isotopes geoscientificInformation 800000 cal yr BP 0 cal yr BP Complete -42.908333 61.43 -171.5 163.02 -4621 -1145 Ocean Pacific Ocean North Pacific Ocean V21-146>LATITUDE 37.67>LONGITUDE 163.02 Ocean Pacific Ocean North Pacific Ocean ODP 849>LATITUDE .18>LONGITUDE -110.52 Ocean Atlantic Ocean South Atlantic Ocean ODP1089>LATITUDE -40.93>LONGITUDE 9.9 Ocean Pacific Ocean North Pacific Ocean ODP 677>LATITUDE 1.2>LONGITUDE -83.73 Ocean Atlantic Ocean North Atlantic Ocean ODP 983>LATITUDE 60.4>LONGITUDE -23.63 Ocean Atlantic Ocean North Atlantic Ocean ODP 925>LATITUDE 4.20415>LONGITUDE -43.4889 Ocean Pacific Ocean North Pacific Ocean ODP 806B>LATITUDE .32>LONGITUDE 159.35 Ocean Pacific Ocean North Pacific Ocean ODP1146>LATITUDE 19.45>LONGITUDE 116.27 Ocean Atlantic Ocean North Atlantic Ocean ODP664B>LATITUDE .1>LONGITUDE -23.23 Ocean Atlantic Ocean North Atlantic Ocean ODP 980>LATITUDE 55.48>LONGITUDE -14.7 Ocean Pacific Ocean North Pacific Ocean ODP1020>LATITUDE 41>LONGITUDE -126.43 Ocean Pacific Ocean South Pacific Ocean V19-28>LATITUDE -2.37>LONGITUDE -84.65 Ocean Pacific Ocean South Pacific Ocean ODP 846>LATITUDE -3.095>LONGITUDE -90.81833 Ocean Atlantic Ocean North Atlantic Ocean ODP 982>LATITUDE 57.517>LONGITUDE -15.8665 Ocean Atlantic Ocean North Atlantic Ocean ODP658C>LATITUDE 20.75>LONGITUDE -18.58 Ocean Pacific Ocean North Pacific Ocean ODP1012>LATITUDE 32.28>LONGITUDE -118.38 Ocean Atlantic Ocean South Atlantic Ocean RC13-229>LATITUDE -26>LONGITUDE 11 Ocean Atlantic Ocean South Atlantic Ocean ODP 1090>LATITUDE -42.908333>LONGITUDE 8.9 Ocean Pacific Ocean North Pacific Ocean ODP1143>LATITUDE 9.37>LONGITUDE 113.28 Ocean Atlantic Ocean North Atlantic Ocean ODP 984>LATITUDE 61.43>LONGITUDE -24.08 Ocean Pacific Ocean South Pacific Ocean ODP1123>LATITUDE -41.78>LONGITUDE -171.5 Ocean Atlantic Ocean North Atlantic Ocean ODP 926>LATITUDE 3.72>LONGITUDE -42.92 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Lisiecki, L.E. and M.E. Raymo. 2009. Diachronous benthic d18O responses during late Pleistocene terminations. Paleoceanography, 24, PA3210, doi:10.1029/2009PA001732

Benthic d18O is often used as a stratigraphic tool to place marine records on a common age model and as a proxy for the timing of ice volume/sea level change. However, Skinner and Shackleton (2005) found that the timing of benthic d18O change at the last termination differed by 3900 years between one Atlantic site and one Pacific site. These results suggest that benthic d18O change may not always accurately record the timing of deglaciation. We compare benthic d18O records from 20 Atlantic sites and 14 Pacific sites to evaluate systematic differences in the timing of terminations in benthic d18O. Analysis of sedimentation rates derived from the alignment of benthic d18O suggests a statistically significant Atlantic lead over Pacific benthic d18O change during the last six terminations. We estimate an average Pacific benthic d18O lag of 1600 years for Terminations 1-5, slightly larger than the delay expected from ocean mixing rates given that most glacial meltwater probably enters the North Atlantic. We additionally find evidence of ~4000-year Pacific d18O lags at approximately 128 ka and 330 ka, suggesting that stratigraphic correlation of d18O has the potential to generate age model errors of several thousand years during terminations. A simple model demonstrates that these lags can be generated by diachronous temperature changes and do not require slower circulation rates. Most importantly, diachronous benthic d18O responses must be taken into account when comparing Atlantic and Pacific benthic d18O records or when using benthic d18O records as a proxy for the timing of ice volume change. STUDY NOTES: Stacked (averaged) benthic foraminineral d18O records from 20 Atlantic sites and 14 Pacific sites, covering the past 800,000 years. Atlantic records are from ODP sites 980, 982, 983, 984, 552, 607, 664, 502, 658, 659, 925, 926, 927, 928, 929, 1090, and 1089, and sites RC13-229, GeoB1041, and GeoB1214. Pacific records are from ODP sites 677, 846, 849, 1012, 1020, 806, 1123, 1143, and 1146, and sites V19-28, V21-146, PC72, and PC18.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lisiecki2009/lisiecki2009.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lisiecki2009/lisiecki2009.xls USA/NOAA DIF Version 9.8.4 2019-06-24 2019-06-24