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Grafenauer, Ingo; Stein, Ruediger; Fütterer, Dieter K (2008): Heavy mineral investigations from surface sediments of the East Greenland continental margin [dataset publication series]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.701354, Supplement to: Grafenauer, Ingo (1998): Terrigener Sedimenteintrag am Ostgrönländischen Kontinentalrand - Rekonstruktion anhand von Schwermineraldaten. Diploma Thesis, Rheinisch-Westfälisch-Technische Hochschule Aachen, 94 pp, hdl:10013/epic.30823.d001

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Abstract:
During the expeditions ARK-VII/1, ARK-VII/3 and ARK-Xl2 sediment cores were taken by "RV Polarstern" from the shelf and the fjords of East Greenland and the Greenland Sea. The magnetic susceptibility and heavy mineral were determined at 48 surface sediment samples from undisturbed box cores. The main objective of this study was the identification of source areas and transport processes of terrigenous sediments at the East Greenland continental margin. The results can be summarized as lollows:
1a) Magnetic susceptibility in the North Atlantic is useful to detect delivery regions of the material transported by currents.
b) The magnetic susceptibility is controlled by the ferromagnetic particles of the silt fraction.
c) There are four important source areas: . The ferromagnetic particles of the box core PS2644-2 are transported from the Iceland Archipelago. . The material from the Geiki-Plateau effects the magnetic susceptibility in the Scoresby Sund Basin. . The magnetic susceptibility in the shelf regions in the North are produced by material from the fjords. . The ferromagnetic particles in the Greenland Sea are derived from the Mid Atlantic Ridges in the east.
d) It is possible to determine the rock type, which delivers the ferromagnetic material because of differences in magnetic susceptibility of different intensity. . The erosion of the basalts of the Geiki-Plateau and the basalts of the Mid Atlantic ridges produce the high magnetic susceptibility in the south. . The magnetic susceptibility on the shelf in the north are probably produced by erosionproducts of the gneises of East Greenland.
(2a) Heavy mineral assemblages show a significant difference between material transported by the Transpolar Drift from the Eurasian shelf regions (amphiboles, clinopyroxene, orthopyroxene) and material derived from East Greenland (garnets and opaque minerals). Transport via ice is dominant.
b) lt is also possible to show different petrographic provenances (volcanic and metamorphic provenances). These associations verify the source areas.
c) The information of heavy mineral composition gives no more detailed hint on the rock type or rock formation in the source area, due to mixing processes, large area of investigation and the sample quantity.
Project(s):
Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)
Coverage:
Median Latitude: 73.458528 * Median Longitude: -10.211850 * South-bound Latitude: 67.868333 * West-bound Longitude: -26.996700 * North-bound Latitude: 77.283000 * East-bound Longitude: -0.391660
Date/Time Start: 1990-06-15T00:00:00 * Date/Time End: 1994-09-19T12:09:00
Event(s):
PS1845-2 (GIK21845-2 PS17/010) * Latitude: 69.461500 * Longitude: -15.782500 * Date/Time: 1990-06-15T19:14:00 * Elevation: -1749.0 m * Penetration: 0.4 m * Recovery: 0.4 m * Location: Kolbeinsey Ridge * Campaign: ARK-VII/1 (PS17) * Basis: Polarstern * Method/Device: Giant box corer (GKG) * Comment: 1 section 0-39
PS1845-3 (GIK21845-3 PS17/010) * Latitude: 69.461500 * Longitude: -15.782500 * Date/Time: 1990-06-15T20:03:00 * Elevation: -1749.0 m * Penetration: 5.1 m * Recovery: 2.83 m * Location: Kolbeinsey Ridge * Campaign: ARK-VII/1 (PS17) * Basis: Polarstern * Method/Device: Kasten corer (KAL)
PS1852-1 (GIK21852-1 PS17/018) * Latitude: 70.253000 * Longitude: -15.826200 * Date/Time: 1990-06-17T04:05:00 * Elevation: -1105.0 m * Penetration: 0.45 m * Recovery: 0.45 m * Location: Kolbeinsey Ridge * Campaign: ARK-VII/1 (PS17) * Basis: Polarstern * Method/Device: Giant box corer (GKG) * Comment: 1 section: 0-42; 2 Rohre
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
20 datasets

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Datasets listed in this publication series

  1. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1852-1. https://doi.org/10.1594/PANGAEA.108148
  2. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1857-1. https://doi.org/10.1594/PANGAEA.108149
  3. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1873-1. https://doi.org/10.1594/PANGAEA.108150
  4. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1875-7. https://doi.org/10.1594/PANGAEA.108151
  5. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1876-1. https://doi.org/10.1594/PANGAEA.108152
  6. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1882-1. https://doi.org/10.1594/PANGAEA.108153
  7. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1892-1. https://doi.org/10.1594/PANGAEA.108154
  8. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1893-1. https://doi.org/10.1594/PANGAEA.108155
  9. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1894-7. https://doi.org/10.1594/PANGAEA.108156
  10. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1895-9. https://doi.org/10.1594/PANGAEA.108157
  11. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1898-6. https://doi.org/10.1594/PANGAEA.108158
  12. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1900-7. https://doi.org/10.1594/PANGAEA.108159
  13. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1901-1. https://doi.org/10.1594/PANGAEA.108160
  14. Grafenauer, I; Stein, R (2003): Documentation of sediment core PS1903-1. https://doi.org/10.1594/PANGAEA.108161
  15. Grafenauer, I; Stein, R (2004): Documentation of sediment core PS1877-1. https://doi.org/10.1594/PANGAEA.183857
  16. Grafenauer, I; Stein, R (2008): Documentation of sediment core PS1864-1. https://doi.org/10.1594/PANGAEA.701479
  17. Grafenauer, I; Stein, R (2006): Distribution of heavy minerals in surface sediments off East Greenland continental margin. https://doi.org/10.1594/PANGAEA.407638
  18. Werner, F; Winn, K; Grobe, H (1998): Sand content of surface sediments from the east Greenland continental margin. https://doi.org/10.1594/PANGAEA.53143
  19. Werner, F; Winn, K; Grobe, H (1998): Magnetite in surface sediments of the east Greenland continental margin. https://doi.org/10.1594/PANGAEA.53142
  20. Grafenauer, I; Stein, R (2006): Magnetic susceptibility in surface sediments of the East Greenland continental margin. https://doi.org/10.1594/PANGAEA.407627