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Frank, Martin; Gersonde, Rainer; Rutgers van der Loeff, Michiel M; Kuhn, Gerhard; Mangini, Augusto (1996): Radionuclides and sedimentation rates of sediment cores from the eastern South Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.711823, Supplement to: Frank, M et al. (1996): Late Quaternary sediment dating and quantification of lateral sediment redistribution applying 230Th-excess, a study of the eastern Atlantic sector of the Southern Ocean. Geologische Rundschau, 85(3), 554-566, https://doi.org/10.1007/BF02369010

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Abstract:
High-resolution records of the natural radionuclide 230Th were measured in sediments from the eastern Atlantic sector of the Antarctic circumpolar current to obtain a detailed reconstruction of the sedimentation history of this key area for global climate change during the late Quaternary. High-resolution dating rests on the assumption that the 230Thex flux to the sediments is constant. Short periods of drastically increased sediment accumulation rates (up to a factor of 8) were determined in the sediments of the Antarctic zone during the climate optima at the beginning of the Holocene and the isotope stage 5e. By comparing expected and measured accumulation rate of 230Thex, lateral sediment redistribution was quantified and vertical particle rain rates originating from the surface water above were calculated. We show that lateral contributions locally were up to 6.5 times higher than the vertical particle rain rates. At other locations only 15% of the expected vertical particle rain rate were deposited.
Project(s):
Marine Geochemistry @ AWI (AWI_MarGeoChem)
Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)
Coverage:
Median Latitude: -49.387066 * Median Longitude: 6.341832 * South-bound Latitude: -55.458333 * West-bound Longitude: 1.163330 * North-bound Latitude: -43.218167 * East-bound Longitude: 11.759000
Date/Time Start: 1989-11-06T15:58:00 * Date/Time End: 1991-04-03T18:40:00
Event(s):
PS1754-1 (PS16/278) * Latitude: -46.771000 * Longitude: 7.612330 * Date/Time: 1989-11-06T15:58:00 * Elevation: -2519.0 m * Recovery: 3.52 m * Location: Meteor Rise * Campaign: ANT-VIII/3 (PS16) * Basis: Polarstern * Method/Device: Gravity corer (Kiel type) (SL) * Comment: 4 core sections: 0-0.52, 0.52-1.52, 1.52-2.52, 2.52-3.52 m
PS1754-2 (PS16/278) * Latitude: -46.766667 * Longitude: 7.594000 * Date/Time: 1989-11-06T17:29:00 * Elevation: -2534.0 m * Penetration: 0.4 m * Recovery: 0.33 m * Location: Meteor Rise * Campaign: ANT-VIII/3 (PS16) * Basis: Polarstern * Method/Device: Giant box corer (GKG) * Comment: +FS-CTD
PS1756-5 (PS16/284) * Latitude: -48.900000 * Longitude: 6.714660 * Date/Time: 1989-11-08T06:24:00 * Elevation: -3828.0 m * Recovery: 8.62 m * Location: Meteor Rise * Campaign: ANT-VIII/3 (PS16) * Basis: Polarstern * Method/Device: Gravity corer (Kiel type) (SL) * Comment: 9 core sections: 0.04-0.77, 0.77-1.77, 1.77-2.77, 2.77-3.77, 3.77-4.62, 4.62-5.62, 5.62-6.62, 6.62-7.62, 7.62-8.62 m; 0-4 fehlt
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
10 datasets

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Datasets listed in this publication series

  1. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1754-1. https://doi.org/10.1594/PANGAEA.50860
  2. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1754-2. https://doi.org/10.1594/PANGAEA.50859
  3. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1756-5. https://doi.org/10.1594/PANGAEA.50863
  4. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1756-6. https://doi.org/10.1594/PANGAEA.50864
  5. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1768-1. https://doi.org/10.1594/PANGAEA.50867
  6. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1768-8. https://doi.org/10.1594/PANGAEA.50865
  7. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1772-6. https://doi.org/10.1594/PANGAEA.50861
  8. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS1772-8. https://doi.org/10.1594/PANGAEA.50862
  9. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS2082-1. https://doi.org/10.1594/PANGAEA.50866
  10. Frank, M; Gersonde, R; Rutgers van der Loeff, MM et al. (1996): Sedimentation rate and radionuclides of sediment core PS2082-3. https://doi.org/10.1594/PANGAEA.50868