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Wessels, Martin; Fütterer, Dieter K; Grobe, Hannes (1989): Sedimentology on cores off Filchner Shelf Ice, Weddell Sea, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.701301, Supplement to: Wessels, Martin (1989): Sedimentationsprozesse an der Filchner Schelfeiskante, Antarktis. Diploma Thesis, Institut und Museum für Geologie und Paläontologie der Georg-August-Universität zu Göttingen (in Zusammenarbeit mit dem Alfred-Wegener-Institut), 126 pp, hdl:10013/epic.30827.d001

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Abstract:
The sediments of 14 box cores and 7 gravity cores, mainly taken directly in front of the Filchner(-Ronne) ice shelf northwest of Berkner Island (Weddell Sea), allowed to distinguish six sediment types. On the one hand,the retreat of the at first grounded and then floated ice from the last glacial maximum is documented. On the other hand,the sediments give an insight into extensive Holocene sediment deposition and remobilization northwest of Berkner Island.
The ortho till was deposited directly by the grounded ice sheet and is lacking any marine influence. After floating of the ice shelf, partly very weIl stratified, partly unstratified, non-bioturbated paratill is deposited beneath the ice shelf. Lack of IRD-content in the paratill immediately above the orthotill indicates freezing at the bottom of the ice, at least for a short period after the ice became afloat. The orthotill and paratill contain small amounts of fragmented Tertiary diatoms, which allow the conclusion, that glacial-marine sediments in the accumulation area of the Ronne ice shelf will be eroded and later deposited by ice in the investigation area.
Starting of bioturbation and therefore change in sedimentation from paratill to bioturbated paratill,is caused by the retreat of the ice shelf to its actual position. Isostatic uplift of the sea-bed after the Ice Age causes minor water depths with higher current velocities. The fine-fraction is eroding and mean particle-size will increase. Maybe, also isostatic uplift is responsible for repeated great advances of the floated ice shelf as shown in an erosional horizon in some cores containing bioturbated paratill.
Postglacial sediment-thicknesses exceed 3 m. Assuming floating of the ice 15.000 YBP, accumulation rates reach nearly 20cm/lOOO years. Following the theories about sediment input in front of wide ice shelves, this was not expected. In the shallower water depths of Berkner Bank, the oscillations of the ice shelf are recorded in the sediments. Sorting and redistribution by high current velocities from beneath the ice up to the calving line, lead to the deposition of the weIl to very weIl sorted sandy till. In front of the calving line the finer fraction will settle down. Remobilization is possible by bioturbation and increasing current-velocity. According to the intensity of mixing of the sandy till with the fine fraction, modified till or muddy till results.
Coverage:
Median Latitude: -76.660829 * Median Longitude: -51.362936 * South-bound Latitude: -77.103690 * West-bound Longitude: -54.420700 * North-bound Latitude: -76.154800 * East-bound Longitude: -48.608000
Date/Time Start: 1984-01-21T00:00:00 * Date/Time End: 1986-02-12T09:53:00
Event(s):
PS1194-1 (PS04/318) * Latitude: -76.885000 * Longitude: -50.563300 * Date/Time: 1984-01-21T00:00:00 * Elevation: -269.0 m * Penetration: 0.24 m * Recovery: 0.24 m * Location: Filchner Shelf * Campaign: ANT-II/4 (PS04) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
PS1196-1 (PS04/334) * Latitude: -76.463300 * Longitude: -52.979990 * Date/Time: 1984-01-25T00:00:00 * Elevation: -427.0 m * Penetration: 0.53 m * Recovery: 0.53 m * Location: Filchner Shelf * Campaign: ANT-II/4 (PS04) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
PS1197-1 (PS04/335) * Latitude: -76.356690 * Longitude: -53.213290 * Date/Time: 1984-01-25T00:00:00 * Elevation: -456.0 m * Penetration: 0.5 m * Recovery: 0.5 m * Location: Filchner Shelf * Campaign: ANT-II/4 (PS04) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
Size:
71 datasets

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Datasets listed in this publication series

  1. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407300
  2. Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407278
  3. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407287
  4. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1194-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407566
  5. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407301
  6. Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407279
  7. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407288
  8. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1196-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407547
  9. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1197-1. https://doi.org/10.1594/PANGAEA.407302
  10. Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1197-1. https://doi.org/10.1594/PANGAEA.407280
  11. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1197-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407548
  12. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407303
  13. Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407281
  14. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407289
  15. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1197-2 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407549
  16. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1198-1. https://doi.org/10.1594/PANGAEA.407304
  17. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1198-1. https://doi.org/10.1594/PANGAEA.407290
  18. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1198-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407550
  19. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1199-1. https://doi.org/10.1594/PANGAEA.407305
  20. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1199-1. https://doi.org/10.1594/PANGAEA.407291
  21. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1199-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407551
  22. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1199-2. https://doi.org/10.1594/PANGAEA.407306
  23. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1199-2. https://doi.org/10.1594/PANGAEA.407292
  24. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1200-2. https://doi.org/10.1594/PANGAEA.407308
  25. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1200-2. https://doi.org/10.1594/PANGAEA.407293
  26. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1200-2 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407552
  27. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1200-4. https://doi.org/10.1594/PANGAEA.407309
  28. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1200-4. https://doi.org/10.1594/PANGAEA.407294
  29. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1200-4 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407553
  30. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1201-1. https://doi.org/10.1594/PANGAEA.407310
  31. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1201-1. https://doi.org/10.1594/PANGAEA.407295
  32. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1201-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407554
  33. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1210-1. https://doi.org/10.1594/PANGAEA.407311
  34. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1210-1. https://doi.org/10.1594/PANGAEA.407296
  35. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1210-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407555
  36. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1210-2. https://doi.org/10.1594/PANGAEA.407312
  37. Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1210-2. https://doi.org/10.1594/PANGAEA.407297
  38. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1210-2 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407556
  39. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1214-1. https://doi.org/10.1594/PANGAEA.407313
  40. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1214-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407557
  41. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1396-1. https://doi.org/10.1594/PANGAEA.407314
  42. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1396-1. https://doi.org/10.1594/PANGAEA.407315
  43. Wessels, M; Grobe, H (1989): Sedimentology of core PS1396-1. https://doi.org/10.1594/PANGAEA.51632
  44. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1396-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407558
  45. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1397-1. https://doi.org/10.1594/PANGAEA.407316
  46. Wessels, M; Grobe, H (1989): Sedimentology of core PS1397-1. https://doi.org/10.1594/PANGAEA.51633
  47. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1397-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407559
  48. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1397-1. https://doi.org/10.1594/PANGAEA.50926
  49. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1397-3. https://doi.org/10.1594/PANGAEA.407317
  50. Wessels, M; Grobe, H (1989): Sedimentology of core PS1397-3. https://doi.org/10.1594/PANGAEA.51634
  51. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1397-3 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407560
  52. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1397-3. https://doi.org/10.1594/PANGAEA.50927
  53. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1398-1. https://doi.org/10.1594/PANGAEA.407318
  54. Wessels, M; Grobe, H (1989): Sedimentology of core PS1398-1. https://doi.org/10.1594/PANGAEA.51635
  55. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1398-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407561
  56. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1398-2. https://doi.org/10.1594/PANGAEA.407319
  57. Wessels, M; Grobe, H (1989): Sedimentology of core PS1398-2. https://doi.org/10.1594/PANGAEA.51636
  58. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1398-2 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407562
  59. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1398-2. https://doi.org/10.1594/PANGAEA.50928
  60. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1399-1. https://doi.org/10.1594/PANGAEA.407320
  61. Wessels, M; Grobe, H (1989): Sedimentology of core PS1399-1. https://doi.org/10.1594/PANGAEA.51637
  62. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1399-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407563
  63. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1399-1. https://doi.org/10.1594/PANGAEA.50929
  64. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1424-1. https://doi.org/10.1594/PANGAEA.407321
  65. Wessels, M; Grobe, H (1989): Sedimentology of core PS1424-1. https://doi.org/10.1594/PANGAEA.51648
  66. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1424-1 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407564
  67. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1424-1. https://doi.org/10.1594/PANGAEA.50930
  68. Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1424-2. https://doi.org/10.1594/PANGAEA.407322
  69. Wessels, M; Grobe, H (1989): Sedimentology of core PS1424-2. https://doi.org/10.1594/PANGAEA.51649
  70. Wessels, M; Grobe, H (1989): Size fraction analysis of sediment core PS1424-2 off Filchner Shelf Ice, southern Weddell Sea. https://doi.org/10.1594/PANGAEA.407565
  71. Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1424-2. https://doi.org/10.1594/PANGAEA.50931