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Hillenbrand, Claus-Dieter; Ehrmann, Werner; Larter, Robert D; Benetti, Sara; Dowdeswell, Julian A; Ó Cofaigh, Colm; Graham, Alastair G C; Grobe, Hannes (2009): Clay mineralogy and shear strength of subglacial and glaciomarine sediments in the southern Bellingshausen Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.711173, Supplement to: Hillenbrand, C-D et al. (2009): Clay mineral provenance of sediments in the southern Bellingshausen Sea reveals drainage changes of the West Antarctic Ice Sheet during the Late Quaternary. Marine Geology, 265(1-2), 1-18, https://doi.org/10.1016/j.margeo.2009.06.009

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Abstract:
The Belgica Trough and the adjacent Belgica Trough Mouth Fan in the southern Bellingshausen Sea (Pacific sector of the Southern Ocean) mark the location of a major outlet for the West Antarctic Ice Sheet during the Late Quaternary. The drainage basin of an ice stream that advanced through Belgica Trough across the shelf during the last glacial period comprised an area exceeding 200,000 km**2 in the West Antarctic hinterland. Previous studies, mainly based on marine-geophysical data from the continental shelf and slope, focused on the bathymetry and seafloor bedforms, and the reconstruction of associated depositional processes and ice- drainage patterns. In contrast, there was only sparse information from seabed sediments recovered by coring. In this paper, we present lithological and clay mineralogical data of 21 sediment cores collected from the shelf and slope of the southern Bellingshausen Sea. Most cores recovered three lithological units, which can be attributed to facies types deposited under glacial, transitional and seasonally open-marine conditions. The clay mineral assemblages document coinciding changes in provenance. The relationship between the clay mineral assemblages in the subglacial and proglacial sediments on the shelf and the glacial diamictons on the slope confirms that a grounded ice stream advanced through Belgica Trough to the shelf break during the past, thereby depositing detritus eroded in the West Antarctic hinterland as soft till on the shelf and as glaciogenic debris flows on the slope. The thinness of the transitional and seasonally open-marine sediments in the cores suggests that this ice advance occurred during the last glacial period. Clay mineralogical, acoustic sub-bottom and seismic data furthermore demonstrate that the palaeo-ice stream probably reworked old sedimentary strata, including older tills, on the shelf and incorporated this debris into its till bed. The geographical heterogeneity of the clay mineral assemblages in the sub- and proglacial diamictons and gravelly deposits indicates that they were eroded from underlying sedimentary strata of different ages. These strata may have been deposited during either different phases of the last glacial period or different glacial and interglacial periods. Additionally, the clay mineralogical heterogeneity of the soft tills recovered on the shelf suggests that the drainage area of the palaeo-ice stream flowing through Belgica Trough changed through time.
Funding:
German Science Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -71.152777 * Median Longitude: -83.645195 * South-bound Latitude: -73.401667 * West-bound Longitude: -89.735000 * North-bound Latitude: -69.305000 * East-bound Longitude: -72.575000
Date/Time Start: 1994-02-05T01:11:00 * Date/Time End: 2004-02-08T00:00:00
Event(s):
JR104-BC351 (BC351 CORE_NO 351) * Latitude: -70.086700 * Longitude: -86.193300 * Date/Time: 2004-01-28T00:00:00 * Elevation: -1041.0 m * Recovery: 0.34 m * Location: Bellingshausen Sea, upper slope on Trough Mouth Fan (TMF) * Campaign: JR20040123 (JR104) * Basis: James Clark Ross * Method/Device: Box corer (BC) * Comment: smear slide, surface sediment (11.5x22.0x1 cm), 1 core X (1-31.5), 1 core Y (0-30 cmbsf)
JR104-BC356 (BC356 CORE_NO 356) * Latitude: -71.768300 * Longitude: -80.110000 * Date/Time: 2004-01-31T00:00:00 * Elevation: -565.0 m * Recovery: 0.11 m * Location: Bellingshausen Sea, till sheet on shelf N of Smyley Island * Campaign: JR20040123 (JR104) * Basis: James Clark Ross * Method/Device: Box corer (BC) * Comment: surface sediment (11.5x22.0x1 cm), bulk sediment (rest of recovered sediment volume), 2 dropstones with serpulid worms and bryozoa
JR104-BC361 (BC361 CORE_NO 361) * Latitude: -71.993300 * Longitude: -76.553300 * Date/Time: 2004-02-01T00:00:00 * Elevation: -633.0 m * Recovery: 0.37 m * Location: Bellingshausen Sea, till sheet on N side of Ronne Entrance Trough * Campaign: JR20040123 (JR104) * Basis: James Clark Ross * Method/Device: Box corer (BC) * Comment: surface sediment (c. 10x10x1 cm), 1 core X (0-10.5 cmbsf), 1 core Y (0-23 cmbsf)
Comment:
Further shear strength data see Hillenbrand et al. (2005) datasets: PS2533-2 doi:10.1594/PANGAEA.89693, PS2538-2 doi:10.1594/PANGAEA.89694, PS2540-3 doi:10.1594/PANGAEA.89695
Size:
67 datasets

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Datasets listed in this publication series

  1. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC351. https://doi.org/10.1594/PANGAEA.717150
  2. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC361. https://doi.org/10.1594/PANGAEA.717151
  3. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC363. https://doi.org/10.1594/PANGAEA.717152
  4. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC379. https://doi.org/10.1594/PANGAEA.717156
  5. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC352. https://doi.org/10.1594/PANGAEA.717157
  6. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC357. https://doi.org/10.1594/PANGAEA.717158
  7. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC358. https://doi.org/10.1594/PANGAEA.717159
  8. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC359. https://doi.org/10.1594/PANGAEA.717160
  9. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC360. https://doi.org/10.1594/PANGAEA.717161
  10. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC362. https://doi.org/10.1594/PANGAEA.717162
  11. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC365. https://doi.org/10.1594/PANGAEA.717163
  12. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC366. https://doi.org/10.1594/PANGAEA.717164
  13. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC368. https://doi.org/10.1594/PANGAEA.717165
  14. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC370. https://doi.org/10.1594/PANGAEA.717166
  15. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC371. https://doi.org/10.1594/PANGAEA.717167
  16. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC372. https://doi.org/10.1594/PANGAEA.717168
  17. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC374. https://doi.org/10.1594/PANGAEA.717169
  18. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC378. https://doi.org/10.1594/PANGAEA.717170
  19. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC380. https://doi.org/10.1594/PANGAEA.717171
  20. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC381. https://doi.org/10.1594/PANGAEA.717172
  21. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2533-2. https://doi.org/10.1594/PANGAEA.115356
  22. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2538-2. https://doi.org/10.1594/PANGAEA.115357
  23. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2540-3. https://doi.org/10.1594/PANGAEA.115359
  24. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2542-2. https://doi.org/10.1594/PANGAEA.115361
  25. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2543-1. https://doi.org/10.1594/PANGAEA.115362
  26. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 2) Clay mineral composition of seabed surface sediments. https://doi.org/10.1594/PANGAEA.711071
  27. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC364. https://doi.org/10.1594/PANGAEA.717153
  28. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC369. https://doi.org/10.1594/PANGAEA.717154
  29. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC373. https://doi.org/10.1594/PANGAEA.717155
  30. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC352. https://doi.org/10.1594/PANGAEA.711150
  31. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC352. https://doi.org/10.1594/PANGAEA.711077
  32. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3d) Clay mineral content of sediment core JR104-GC357. https://doi.org/10.1594/PANGAEA.711151
  33. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3d) Shear strength of sediment core JR104-GC357. https://doi.org/10.1594/PANGAEA.711078
  34. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC358. https://doi.org/10.1594/PANGAEA.711152
  35. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC358. https://doi.org/10.1594/PANGAEA.711079
  36. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3c) Clay mineral content of sediment core JR104-GC359. https://doi.org/10.1594/PANGAEA.711153
  37. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3c) Shear strength of sediment core JR104-GC359. https://doi.org/10.1594/PANGAEA.711080
  38. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3b) Clay mineral content of sediment core JR104-GC360. https://doi.org/10.1594/PANGAEA.711154
  39. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3b) Shear strength of sediment core JR104-GC360. https://doi.org/10.1594/PANGAEA.711081
  40. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC362. https://doi.org/10.1594/PANGAEA.711155
  41. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC362. https://doi.org/10.1594/PANGAEA.711082
  42. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC365. https://doi.org/10.1594/PANGAEA.711156
  43. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC365. https://doi.org/10.1594/PANGAEA.711083
  44. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3a) Clay mineral content of sediment core JR104-GC366. https://doi.org/10.1594/PANGAEA.711157
  45. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3a) Shear strength of sediment core JR104-GC366. https://doi.org/10.1594/PANGAEA.711084
  46. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC368. https://doi.org/10.1594/PANGAEA.711158
  47. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC368. https://doi.org/10.1594/PANGAEA.711085
  48. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC370. https://doi.org/10.1594/PANGAEA.711159
  49. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC370. https://doi.org/10.1594/PANGAEA.711086
  50. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3f) Clay mineral content of sediment core JR104-GC371. https://doi.org/10.1594/PANGAEA.711160
  51. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3f) Shear strength of sediment core JR104-GC371. https://doi.org/10.1594/PANGAEA.711087
  52. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC372. https://doi.org/10.1594/PANGAEA.711161
  53. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC372. https://doi.org/10.1594/PANGAEA.711088
  54. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3h) Clay mineral content of sediment core JR104-GC374. https://doi.org/10.1594/PANGAEA.711162
  55. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3h) Shear strength of sediment core JR104-GC374. https://doi.org/10.1594/PANGAEA.711089
  56. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core JR104-GC378. https://doi.org/10.1594/PANGAEA.711163
  57. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core JR104-GC378. https://doi.org/10.1594/PANGAEA.711090
  58. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3j) Clay mineral content of sediment core JR104-GC380. https://doi.org/10.1594/PANGAEA.711164
  59. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3k) Clay mineral content of sediment core JR104-GC381. https://doi.org/10.1594/PANGAEA.711165
  60. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3k) Shear strength of sediment core JR104-GC381. https://doi.org/10.1594/PANGAEA.711091
  61. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3e) Clay mineral content of sediment core PS2533-2. https://doi.org/10.1594/PANGAEA.711166
  62. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3i) Clay mineral content of sediment core PS2538-2. https://doi.org/10.1594/PANGAEA.711167
  63. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core PS2540-3. https://doi.org/10.1594/PANGAEA.711168
  64. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3g) Clay mineral content of sediment core PS2542-2. https://doi.org/10.1594/PANGAEA.711169
  65. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Fig. 3g) Shear strength of sediment core PS2542-2. https://doi.org/10.1594/PANGAEA.711092
  66. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Clay mineral content of sediment core PS2543-1. https://doi.org/10.1594/PANGAEA.711170
  67. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): (Supp. Fig.) Shear strength of sediment core PS2543-1. https://doi.org/10.1594/PANGAEA.711093