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Kissel, Catherine (2019): Magnetic properties and sortable silt data from marine sedimentsfrom the Gardar drift and the Charlie-Gibbs fracture zone as tracers for bottom current dynamic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.899300, Supplement to: Kissel, Catherine; Van Toer, Aurélie; Laj, Carlo E; Cortijo, Elsa; Michel, Elisabeth (2013): Variations in the strength of the North Atlantic bottom water during Holocene. Earth and Planetary Science Letters, 369-370, 248-259, https://doi.org/10.1016/j.epsl.2013.03.042

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Published: 2019-03-14 • DOI registered: 2019-03-25

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Abstract:
Magnetic properties coupled with sortable silt are investigated for Holocene marine sedimentary sequences located in the subpolar North Altantic, in the Charlie– Gibbs fracture zone (53°N) and in central (57°N) and southern Gardar drift (59°N). All the cores are located at water depths bathed by the Iceland–Scotland Overflow Water, mixed at the southernmost locality with southern sourced water masses. The goal of the multi-proxy study is the changes in the dynamics and the properties of bottom water mass during Holocene. After checking that the magnetic minerals is magnetite of uniform grain size, the low field magnetic susceptibility is used as a magnetic concentration parameter and as a tracer of the transport efficiency by the bottom current from the northern basaltic-derived source. The mean sortable silt size is used as a tracer of bottom current strength whatever the detrital source.
Keyword(s):
Holocene; intensity bottom currents; magnetism; sortable silt
Project(s):
Climate Change: Learning from the past climate (Past4Future)
Funding:
Seventh Framework Programme (FP7), grant/award no. 243908: Climate Change: Learning from the past climate
Coverage:
Median Latitude: 54.861945 * Median Longitude: -32.363761 * South-bound Latitude: 52.699830 * West-bound Longitude: -36.080000 * North-bound Latitude: 58.762300 * East-bound Longitude: -25.959200
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 2008-06-25T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
5 datasets

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Datasets listed in this publication series

  1. Kissel, C (2019): Low field magnetic susceptibility in Holocene sediment core CH77-02 from the Gardar drift. https://doi.org/10.1594/PANGAEA.899293
  2. Kissel, C (2019): Low field magnetic susceptibility in Holocene sediment core MD03-2678Cq from the Gardar drift. https://doi.org/10.1594/PANGAEA.899296
  3. Kissel, C (2019): The mean sortable silt size in Holocene sediment core MD08-3182Cq from the Gardar drift. https://doi.org/10.1594/PANGAEA.899292
  4. Kissel, C (2019): Low field magnetic susceptibility in Holocene sediment core MD08-3182Cq from the Gardar drift. https://doi.org/10.1594/PANGAEA.899298
  5. Kissel, C (2019): Low field magnetic susceptibility in Holocene sediment cores MD99-2251 and MD03-2676C2 from the Gardar drift. https://doi.org/10.1594/PANGAEA.899299