Gardar Drift Foraminiferal and Sedimentological Data from the Early Holocene and Younger Dryas Elmore, A.C.; Wright, J.D.; Southon, J.R. Elmore, A.C. Wright, J.D. Southon, J.R. Younger Dryas 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 earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (KN166-14 11JPC>LATITUDE 56.233333>LONGITUDE -27.65) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Elmore, A.C. Investigator : Wright, J.D. Investigator : Southon, J.R. 2014-12-09 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/17536 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/elmore2014/elmore2014.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/elmore2014/elmore2014.txt English https://www.ncdc.noaa.gov/paleo/study/17536 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/elmore2014/elmore2014.txt Elmore, A.C., J.D. Wright, and J. Southon2014Continued meltwater influence on North Atlantic Deep Water instabilities during the early HoloceneMarine Geology36017-2410.1016/j.margeo.2014.11.015 Elmore, A.C. and J.D. Wright2011North Atlantic Deep Water and Climate variability during the Younger Dryas cold periodGeology292107-11010.1130/G31376.1 START YEAR: 13500 cal yr BP * END YEAR: 0 cal yr BP -27.65 56.233333 -27.65 56.233333