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Hillenbrand, Claus-Dieter; Ehrmann, Werner; Larter, Robert D; Benetti, Sara; Dowdeswell, Julian A; Cofaigh, Colm Ó; 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.
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 * 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 * 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 * 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): (Fig. 2) Clay mineral composition of seabed surface sediments. https://doi.org/10.1594/PANGAEA.711071
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  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): (Supp. Fig.) Shear strength of sediment core JR104-GC358. https://doi.org/10.1594/PANGAEA.711079
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC351. https://doi.org/10.1594/PANGAEA.717150
  41. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC361. https://doi.org/10.1594/PANGAEA.717151
  42. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC363. https://doi.org/10.1594/PANGAEA.717152
  43. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC364. https://doi.org/10.1594/PANGAEA.717153
  44. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC369. https://doi.org/10.1594/PANGAEA.717154
  45. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC373. https://doi.org/10.1594/PANGAEA.717155
  46. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-BC379. https://doi.org/10.1594/PANGAEA.717156
  47. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC352. https://doi.org/10.1594/PANGAEA.717157
  48. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC357. https://doi.org/10.1594/PANGAEA.717158
  49. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC358. https://doi.org/10.1594/PANGAEA.717159
  50. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC359. https://doi.org/10.1594/PANGAEA.717160
  51. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC360. https://doi.org/10.1594/PANGAEA.717161
  52. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC362. https://doi.org/10.1594/PANGAEA.717162
  53. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC365. https://doi.org/10.1594/PANGAEA.717163
  54. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC366. https://doi.org/10.1594/PANGAEA.717164
  55. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC368. https://doi.org/10.1594/PANGAEA.717165
  56. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC370. https://doi.org/10.1594/PANGAEA.717166
  57. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC371. https://doi.org/10.1594/PANGAEA.717167
  58. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC372. https://doi.org/10.1594/PANGAEA.717168
  59. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC374. https://doi.org/10.1594/PANGAEA.717169
  60. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC378. https://doi.org/10.1594/PANGAEA.717170
  61. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC380. https://doi.org/10.1594/PANGAEA.717171
  62. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core JR104-GC381. https://doi.org/10.1594/PANGAEA.717172
  63. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2533-2. https://doi.org/10.1594/PANGAEA.115356
  64. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2538-2. https://doi.org/10.1594/PANGAEA.115357
  65. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2540-3. https://doi.org/10.1594/PANGAEA.115359
  66. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2542-2. https://doi.org/10.1594/PANGAEA.115361
  67. Hillenbrand, C-D; Ehrmann, W; Larter, RD et al. (2009): Documentation of sediment core PS2543-1. https://doi.org/10.1594/PANGAEA.115362