noaa-ocean-17536 Gardar Drift Foraminiferal and Sedimentological Data from the Early Holocene and Younger Dryas Elmore, A.C.; Wright, J.D.; Southon, J.R. Gardar Drift Foraminiferal and Sedimentological Data from the Early Holocene and Younger Dryas 2014-12-09 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/17536 Investigator A.C. Elmore Investigator J.D. Wright Investigator J.R. Southon earth science paleoclimate paleoceanography calcium carbonate,sediment,null,percent,null,paleoceanography,null,null,N,coarse fraction >63um earth science paleoclimate paleoceanography delta 18O,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,Neogloboquadrina pachyderma sinistral,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 13C,Globigerina bulloides,null,per mil PDB,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 Neogloboquadrina pachyderma sinistral,null,null,percent,null,paleoceanography,null,null,N,left coiling earth science paleoclimate paleoceanography Globigerina bulloides,null,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Neogloboquadrina pachyderma sinistral,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 Neogloboquadrina pachyderma dextral,null,null,percent,null,paleoceanography,null,null,N,right coiling earth science paleoclimate paleoceanography delta 18O,Globigerina bulloides|Neogloboquadrina pachyderma sinistral,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography mineral matter,sediment,null,count per gram,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcium carbonate,sediment,null,weight percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography weight,sediment,null,gram,null,paleoceanography,null,null,N,dry >63um earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean lithology earth science paleoclimate paleocean carbon isotopes geoscientificInformation Younger Dryas 13500 cal yr BP 0 cal yr BP Complete 56.233333 56.233333 -27.65 -27.65 -2707 -2707 Ocean Atlantic Ocean North Atlantic Ocean KN166-14 11JPC>LATITUDE 56.233333>LONGITUDE -27.65 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 Elmore, A.C., J.D. Wright, and J. Southon 2014 Marine Geology 360 17-24 10.1016/j.margeo.2014.11.015 Elmore, A.C. and J.D. Wright 2011 Geology 29 2 107-110 10.1130/G31376.1

The transition into the Holocene marks the last large, orbitally derived climatic event and ultimately led to the onset of modern oceanic conditions. The influence of this climatic change on North Atlantic Deep Water (NADW) formation and circulation remains ambiguous. High-resolution records from southern Gardar Drift, south of Iceland, show abrupt decreases in benthic foraminiferal d13C values at discrete intervals during the early Holocene, suggesting that NADW shoaled episodically. Intervals of lower d13C values are coincident with higher d18ON. pachyderma, d18OG. bulloides and high abundance of lithic grains/g, indicating that these periods also had enhanced surface water stratification due to increased meltwater in the circum-North Atlantic region. Our new planktonic and benthic foraminiferal stable isotopic data show that increased meltwater delivery led to brief reorganizations of deepwater currents. These southern Gardar surface and deep water records indicate that the early Holocene was a period of multiple abrupt climatic events that were propagated to the North Atlantic during the final break up of ice sheets in the Northern Hemisphere and suggests that some component of the residual early Holocene sea level rise can be attributed to Northern Hemispheric sources. STUDY NOTES: Age model and paleoceanographic records from the Holocene and Younger Dryas from Gardar Drift. The data set is a combined set from the 2011 Elmore and Wright Geology paper (6-13.5ka), and the 2014 Elmore, Wright and Southon Marine Geology paper (0-11.7ka). The age model is an update version from the 2011 Geology paper. For the Age model, 14C AMS dates signified by * were not used. The chronostratigraphic tie point at 183cm was updated from 11,500 to 11,700 years for Elmore et al., 2014.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/elmore2014/elmore2014.txt Formatted Text File; KN166-14 11JPC Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11