Wessels, Martin; Fütterer, Dieter K; Grobe, Hannes (1989): Sedimentology on cores off Filchner Shelf Ice, Weddell Sea, Antarctica [dataset publication series]. 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.
Project(s):
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)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
71 datasets
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Datasets listed in this publication series
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407300
- Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407278
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1194-1. https://doi.org/10.1594/PANGAEA.407287
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407301
- Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407279
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1196-1. https://doi.org/10.1594/PANGAEA.407288
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1197-1. https://doi.org/10.1594/PANGAEA.407302
- Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1197-1. https://doi.org/10.1594/PANGAEA.407280
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407303
- Wessels, M; Grobe, H (1989): Water content, carbonate and organic carbon of sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407281
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1197-2. https://doi.org/10.1594/PANGAEA.407289
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1198-1. https://doi.org/10.1594/PANGAEA.407304
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1198-1. https://doi.org/10.1594/PANGAEA.407290
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1199-1. https://doi.org/10.1594/PANGAEA.407305
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1199-1. https://doi.org/10.1594/PANGAEA.407291
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1199-2. https://doi.org/10.1594/PANGAEA.407306
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1199-2. https://doi.org/10.1594/PANGAEA.407292
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1200-2. https://doi.org/10.1594/PANGAEA.407308
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1200-2. https://doi.org/10.1594/PANGAEA.407293
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1200-4. https://doi.org/10.1594/PANGAEA.407309
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1200-4. https://doi.org/10.1594/PANGAEA.407294
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1201-1. https://doi.org/10.1594/PANGAEA.407310
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1201-1. https://doi.org/10.1594/PANGAEA.407295
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1210-1. https://doi.org/10.1594/PANGAEA.407311
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1210-1. https://doi.org/10.1594/PANGAEA.407296
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1210-2. https://doi.org/10.1594/PANGAEA.407312
- Wessels, M; Grobe, H; Haase, GM (1989): Shear strength measured on sediment core PS1210-2. https://doi.org/10.1594/PANGAEA.407297
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1214-1. https://doi.org/10.1594/PANGAEA.407313
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1396-1. https://doi.org/10.1594/PANGAEA.407314
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1396-1. https://doi.org/10.1594/PANGAEA.407315
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1396-1. https://doi.org/10.1594/PANGAEA.51632
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1397-1. https://doi.org/10.1594/PANGAEA.407316
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1397-1. https://doi.org/10.1594/PANGAEA.51633
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1397-1. https://doi.org/10.1594/PANGAEA.50926
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1397-3. https://doi.org/10.1594/PANGAEA.407317
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1397-3. https://doi.org/10.1594/PANGAEA.51634
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1397-3. https://doi.org/10.1594/PANGAEA.50927
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1398-1. https://doi.org/10.1594/PANGAEA.407318
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1398-1. https://doi.org/10.1594/PANGAEA.51635
- 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
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1398-2. https://doi.org/10.1594/PANGAEA.407319
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1398-2. https://doi.org/10.1594/PANGAEA.51636
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1398-2. https://doi.org/10.1594/PANGAEA.50928
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1399-1. https://doi.org/10.1594/PANGAEA.407320
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1399-1. https://doi.org/10.1594/PANGAEA.51637
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1399-1. https://doi.org/10.1594/PANGAEA.50929
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1424-1. https://doi.org/10.1594/PANGAEA.407321
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1424-1. https://doi.org/10.1594/PANGAEA.51648
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1424-1. https://doi.org/10.1594/PANGAEA.50930
- Wessels, M; Grobe, H (1989): Biogenic content in sediment core PS1424-2. https://doi.org/10.1594/PANGAEA.407322
- Wessels, M; Grobe, H (1989): Sedimentology of core PS1424-2. https://doi.org/10.1594/PANGAEA.51649
- 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
- Wessels, M; Grobe, H; Villinger, H (1989): Sound velocity of sediment core PS1424-2. https://doi.org/10.1594/PANGAEA.50931