noaa-ocean-5595 North Iceland Shelf (MD99-2269) Holocene Quartz and Grain Size Data Moros, M.; Andrews, J.T.; Eberl, D.D.; Jansen, E. North Iceland Shelf (MD99-2269) Holocene Quartz and Grain Size Data 2006-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/5595 Investigator M. Moros Investigator J.T. Andrews Investigator D.D. Eberl Investigator E. Jansen earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,null,null,N,> 63 microns earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography mineral index,sediment,null,dimensionless,null,paleoceanography,null,null,N,quartz/plagioclase earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,null,null,N,> 125 microns 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 paleocean lithology earth science paleoclimate paleocean age control geoscientificInformation 9950 14C yr BP 12 14C yr BP 11499 cal yr BP 0 cal yr BP Complete 66.63 66.63 -23.85 -23.85 -365 -365 Ocean Atlantic Ocean North Atlantic Ocean MD99-2269>LATITUDE 66.63>LONGITUDE -23.85 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 Moros M., J.T. Andrews, D.D. Eberl, E. Jansen. 2006. Holocene history of drift ice in the northern North Atlantic: Evidence for different spatial and temporal modes. Paleoceanography, 21, PA2017.

We present new high-resolution proxy data for the Holocene history of drift ice off Iceland based on the mineralogy of the <2-mm sediment fraction using quantitative X-ray diffraction. These new data, bolstered by a comparison with published proxy records, point to a long-term increasing trend in drift ice input into the North Atlantic from 6 to 5 ka toward the present day at sites influenced by the cold east Greenland Current. This feature reflects the late Holocene Neoglacial or cooling period recorded in ice cores and further terrestrial archives on Greenland. In contrast, a decrease in drift ice during the same period is recorded at sites underlying the North Atlantic Drift, which may reflect a warming of this region. The results document that Holocene changes in iceberg rafting and sea ice advection did not occur uniformly across the North Atlantic. Centennial-scale climate variability in the North Atlantic region over the last ~4 kyr is linked to the observed changes in drift ice input. Increased drift ice may have played a role in the increase of cold intervals during the late Holocene, e.g., the Little Ice Age cooling. STUDY NOTES: Quartz weight percent, quartz/plagioclase ratio, and grain size distribution in sediments from IMAGES core MD99-2269, North Iceland Shelf

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/m992269m-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/moros2006 USA/NOAA DIF Version 9.8.4 2019-05-30 2019-05-30