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Diester-Haass, Lieselotte; Schrader, Hans-Jürgen; Thiede, Jörn (1973): Sedimentological and paleoclimatological investigation of two sediment cores off Cape Barbas, North-West Africa [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.548418, Supplement to: Diester-Haass, L et al. (1973): Sedimentological and paleoclimatological investigations of two pelagic ooze cores off Cape barbas, North-West Africa. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C16, 19-66

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Abstract:
Two box cores taken off Cape Barbas (North-West Africa) have been studied using three methods. The analyses of the coarse fraction, of biogenic opal and of planktonic foraminifera revealed :
1. Core GIK12310-4 penetrates Z, Y, X and upper part of W zone, whereas core GIK12379-1 penetrates Z and upper part of Y zone.
2. Holocene sedimentation rates are 2.5 cm/1000 y for core GIK12310-4 and 6.0 cm/1000 y for core GIK12379-1. During the Y zone 5 cm/l000 y were sedimented incore GIK12310-4 and > 10-20 cm/1000 y in core GIK12379-1.
3. Paleoclimatohgical results are: arid climate and relatively warm water temperatures during the Holocene (Z zone) and during X zone; humid climate and relatively cool water temperatures within the Wuerm (Y zone) (with a non-dated more arid interval found in the middle part of the Y zone) and in the upper part of the W zone.
4. Increased contents of benthos and radiolaria in the Y zone indicate upwelling. Upwelling, characterized by high content of biogenic opal and low water temperatures, was found in core GIK12310-4 at 250 to 350 cm in the lower part of the Y zone.
The plankton/benthos ratio of foraminifera, the benthos/radiolaria ratio and water temperatures derived from planktonic foraminifera, differ in both cores in the Holocene, and are nearly identical during the Wuerm.
Project(s):
Institute for Geosciences, Christian Albrechts University, Kiel (GIK/IfG)
Coverage:
Median Latitude: 23.407500 * Median Longitude: -18.473750 * South-bound Latitude: 23.135000 * West-bound Longitude: -18.716667 * North-bound Latitude: 23.498333 * East-bound Longitude: -17.745000
Date/Time Start: 1971-11-02T00:00:00 * Date/Time End: 1971-11-30T00:00:00
Event(s):
GIK12310-4 * Latitude: 23.498333 * Longitude: -18.716667 * Date/Time: 1971-11-02T00:00:00 * Elevation: -3080.0 m * Recovery: 5.57 m * Location: East Atlantic * Campaign: M25 * Basis: Meteor (1964) * Method/Device: Kasten corer (KAL)
GIK12379-1 * Latitude: 23.135000 * Longitude: -17.745000 * Date/Time: 1971-11-30T00:00:00 * Elevation: -2066.0 m * Recovery: 7.5 m * Location: East Atlantic * Campaign: M25 * Basis: Meteor (1964) * Method/Device: Kasten corer (KAL)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Absolute abundance of foraminifera in sediment core GIK12310-4, Cape Barbas, North-West Africa (Appendix Tab. 2d). https://doi.org/10.1594/PANGAEA.509753
  2. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Absolute abundance of particles and planktic foraminifera in sediment core GIK12310-4, Cape Barbas, North-West Africa (Appendix Tab. 2c). https://doi.org/10.1594/PANGAEA.509755
  3. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Relative abundance of planktic foraminifera in sediment core GIK12310-4, Caoe Barbas, North-Weat Africa (Appendix Tab. 2e). https://doi.org/10.1594/PANGAEA.509756
  4. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Sample information for investigated sand fraction of sediment core GIK12310-1, Cape Barbas, North-West Africa (Appendix Tab. 2a). https://doi.org/10.1594/PANGAEA.509739
  5. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Number of specimen counted in sediment core GIK12310-4, Cape Barbas, North-West Africa (Appendix Tab. 1). https://doi.org/10.1594/PANGAEA.509736
  6. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Reconstruction of surface water temperature of sediment core GIK12310-4, Cape Barbas, North-West Africa (Appendix Tab. 3). https://doi.org/10.1594/PANGAEA.509757
  7. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Number of specimen counted in sediment core GIK12379-1, Cape Barbas, North-West Africa (Appendix Tab. 1). https://doi.org/10.1594/PANGAEA.509737
  8. Diester-Haass, L; Schrader, H-J; Thiede, J (1973): Reconstruction of surface water temperature of sediment core GIK12379-1, Cape Barbas, North-West Africa (Appendix Tab. 4). https://doi.org/10.1594/PANGAEA.509758