noaa-ocean-15874 Paleomagnetic Data from IODP Site U1305 and the Northern North Atlantic During the Holocene Stoner, J.S.; Channell, J.E.T.; Mazaud, A.; Xuan, C.; Strano, S.E. Paleomagnetic Data from IODP Site U1305 and the Northern North Atlantic During the Holocene 2013-12-30 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/15874 Investigator J.S. Stoner Investigator J.E.T. Channell Investigator A. Mazaud Investigator C. Xuan Investigator S.E. Strano earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@10mT earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@50mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@20mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@45mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@20mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization/isothermal remanent 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magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@25mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@50mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@45mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization/isothermal remanent magnetization,sediment,null,dimensionless,null,paleoceanography,null,null,N,@30mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@25mT earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@40mT earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@60mT earth science paleoclimate paleoceanography volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleoceanography,null,null,N,x10-6 units earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@35mT earth science paleoclimate paleoceanography characteristic remanent magnetization declination,sediment,null,degree,null,paleoceanography,averaged,null,N,50-year running mean earth science paleoclimate paleoceanography age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography paleointensity,sediment,null,dimensionless,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@35mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@30mT earth science paleoclimate paleoceanography anhysteretic remanent magnetization/magnetic susceptibility,sediment,null,dimensionless,null,paleoceanography,null,null,N,anhysteretic susceptibility/Low-field volumetric magnetic susceptibility ratio earth science paleoclimate paleoceanography characteristic remanent magnetization inclination,sediment,null,degree,null,paleoceanography,averaged,null,N,50-year running mean earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@80mT earth science paleoclimate paleoceanography characteristic remanent magnetization inclination,sediment,null,degree,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@60mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@50mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@60mT earth science paleoclimate paleoceanography characteristic remanent magnetization,sediment,null,degree,null,paleoceanography,null,null,N,ChRM declination earth science paleoclimate paleoceanography paleointensity,sediment,one standard error,dimensionless,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography natural remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@25mT earth science paleoclimate paleoceanography characteristic remanent magnetization declination,sediment,null,degree,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography anhysteretic remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@30mT earth science paleoclimate paleoceanography isothermal remanent magnetization,sediment,null,ampere per meter,null,paleoceanography,null,null,N,@35mT earth science paleoclimate paleocean magnetic susceptibility geoscientificInformation 11680 cal yr BP 500 cal yr BP Complete 57.475167 67.136333 -48.529667 -20.852667 -3459 -3459 Ocean Atlantic Ocean North Atlantic Ocean IODP U1305>LATITUDE 57.475167>LONGITUDE -48.529667 Ocean Atlantic Ocean North Atlantic Ocean MD99-2269/2322>LATITUDE >LONGITUDE 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 Stoner, J.S., J.E.T. Channell, A. Mazaud, C. Xuan, and S.E. Strano 2013 Geochemistry, Geophysics, Geosystems 14 4623-4646 10.1002/ggge.20272

Paleomagnetic analysis and radiocarbon dating of an expanded Holocene deep-sea sediment sequence recovered by Integrated Ocean Drilling Program (IODP) Expedition 303 from Labrador Sea Site U1305 (Lat.: 57°28.5 N, Long.: 48°31.8 W, water depth 3459 m) provides insights into mechanisms that drive both paleomagnetic secular variation (PSV) and magnetization acquisition in deep-sea sediments. Seventeen radiocarbon dates on planktonic foraminifera define postglacial (ca. 8 ka) sedimentation rates as ranging from 35 to?>?90 cm/kyr. Alternating field (AF) demagnetization of u-channel samples show that these homogeneous sediments preserve a strong, stable, and consistently well-defined component magnetization. Normalized remanence records pass reliability criteria for relative paleointensity (RPI) estimates. Assuming that the age of magnetization is most accurately defined by well dated PSV records with the highest sedimentation rates, allows us to estimate and correct for temporal offsets at Site U1305 interpreted to result from postdepositional remanence acquisition at a depth of ~20 cm. Comparisons indicate that the northern North Atlantic PSV and RPI records are more consistent with European than North American records, and the evolution of virtual geomagnetic poles (VGP) are temporally and longitudinally similar to global reconstructions, though with much larger latitudinal variation. The largest deviations from a geocentric axial dipole (GAD) are observed during times of the highest intensities, in contrast to the usual assumption. These observations are consistent with the idea that PSV in the North Atlantic and elsewhere during the Holocene results from temporal oscillations of high-latitude flux concentrations at a few recurrent locations.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/stoner2013/stoner2013-rpi.txt Formatted Text File; GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/stoner2013/stoner2013-greenice.txt Formatted Text File; GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/stoner2013/stoner2013-fig2.txt Formatted Text File; USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11