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Kuhn, Gerhard; Hillenbrand, Claus-Dieter; Kasten, Sabine; Smith, James A; Nitsche, Frank-Oliver; Frederichs, Thomas; Wiers, Steffen; Ehrmann, Werner; Klages, Johann Philipp; Mogollón, José M (2017): Sediment facies of a paleo-subglacial lake on the Antarctic continentral shelf. PANGAEA, https://doi.org/10.1594/PANGAEA.873755, Supplement to: Kuhn, G et al. (2017): Evidence for a palaeo-subglacial lake on the Antarctic continental shelf. Nature Communications, 8, 15591, https://doi.org/10.1038/NCOMMS15591

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Abstract:
Subglacial lakes are widespread beneath the Antarctic ice sheet but their control on ice sheet dynamics and their ability to harbour life remain poorly characterised. Here we present the evidence for a palaeo-subglacial lake on the Antarctic continental shelf. A distinct sediment facies recovered from a bedrock basin in Pine Island Bay indicates deposition within a low-energy lake environment. Diffusive-advection modelling demonstrates that low chloride concentrations in the sediment pore water can only be explained by initial deposition of this facies in a freshwater setting. These observations indicate that an active subglacial meltwater network, similar to that observed beneath the extant ice sheet, was also active during the last glacial period. It also provides a new framework for refining exploration of these unique environments.
Further details:
Hillenbrand, Claus-Dieter; Kuhn, Gerhard; Smith, James A; Gohl, Karsten; Graham, Alastair G C; Larter, Robert D; Klages, Johann Philipp; Downey, Rachel; Moreton, Steven Grahame; Forwick, Matthias; Vaughan, David G (2013): Documentation of sediment core PS75/167-1. Alfred Wegener Institute - Polarstern core repository, PANGAEA, https://doi.org/10.1594/PANGAEA.754973
Hillenbrand, Claus-Dieter; Kuhn, Gerhard; Smith, James A; Gohl, Karsten; Graham, Alastair G C; Larter, Robert D; Klages, Johann Philipp; Downey, Rachel; Moreton, Steven Grahame; Forwick, Matthias; Vaughan, David G (2013): Documentation of sediment core PS75/214-1. Alfred Wegener Institute - Polarstern core repository, PANGAEA, https://doi.org/10.1594/PANGAEA.754980
Coverage:
Median Latitude: -74.519219 * Median Longitude: -103.905749 * South-bound Latitude: -74.799830 * West-bound Longitude: -106.643160 * North-bound Latitude: -74.356900 * East-bound Longitude: -102.355160
Date/Time Start: 2006-03-13T18:19:00 * Date/Time End: 2010-03-16T16:59:00
Size:
29 datasets

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Datasets listed in this publication series

  1. Hillenbrand, C-D; Kuhn, G (2007): Documentation of sediment core PS69/288-3. https://doi.org/10.1594/PANGAEA.611105
  2. Hillenbrand, C-D; Kuhn, G (2006): Documentation of sediment core PS69/291-1. https://doi.org/10.1594/PANGAEA.499839
  3. Hillenbrand, C-D; Kuhn, G (2006): Documentation of sediment core PS69/292-2. https://doi.org/10.1594/PANGAEA.499840
  4. Hillenbrand, C-D; Kuhn, G (2006): Documentation of sediment core PS69/295-1. https://doi.org/10.1594/PANGAEA.499841
  5. Hillenbrand, C-D; Kuhn, G (2007): Documentation of sediment core PS69/296-1. https://doi.org/10.1594/PANGAEA.611106
  6. Hillenbrand, C-D; Kuhn, G (2010): Documentation of sediment core PS75/159-1. https://doi.org/10.1594/PANGAEA.754970
  7. Hillenbrand, C-D; Kuhn, G (2010): Documentation of sediment core PS75/166-3. https://doi.org/10.1594/PANGAEA.754972
  8. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): (Table S2) Radiocarbon age control sediment cores from Pine Island Bay. https://doi.org/10.1594/PANGAEA.873760
  9. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Clay mineral composition of sediment cores PS69/288-2 and PS69/288-3. https://doi.org/10.1594/PANGAEA.874100
  10. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Grain-size composition of sediment cores PS69/288-2 and PS69/288-3. https://doi.org/10.1594/PANGAEA.874101
  11. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): IRD counts of sediment cores PS69/288-2 and PS69/288-3. https://doi.org/10.1594/PANGAEA.874102
  12. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Magnetic properties of sediment core PS69/288-2. https://doi.org/10.1594/PANGAEA.874107
  13. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Magnetic properties of sediment core PS69/288-3. https://doi.org/10.1594/PANGAEA.874108
  14. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Physical properties of sediment cores PS69/288-2 and PS69/288-3. https://doi.org/10.1594/PANGAEA.874103
  15. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Physical properties of sediment cores PS69/288-2 and PS69/288-3, sample based analyses. https://doi.org/10.1594/PANGAEA.874104
  16. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS69/288-3. https://doi.org/10.1594/PANGAEA.873745
  17. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS69/291-1. https://doi.org/10.1594/PANGAEA.873746
  18. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS69/292-2. https://doi.org/10.1594/PANGAEA.873747
  19. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS69/295-1. https://doi.org/10.1594/PANGAEA.873748
  20. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS69/296-1. https://doi.org/10.1594/PANGAEA.873749
  21. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS75/159-1. https://doi.org/10.1594/PANGAEA.873750
  22. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS75/166-3. https://doi.org/10.1594/PANGAEA.873751
  23. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS75/167-1. https://doi.org/10.1594/PANGAEA.873752
  24. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS75/168-1. https://doi.org/10.1594/PANGAEA.873753
  25. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): Porewater chloride concentration in sediment core PS75/214-1. https://doi.org/10.1594/PANGAEA.873754
  26. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): S-ratios of sediment core PS69/288-3. https://doi.org/10.1594/PANGAEA.874150
  27. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): TOC and TN content of sediment cores PS69/288-2 and PS69/288-3, sample based analyses. https://doi.org/10.1594/PANGAEA.874106
  28. Kuhn, G; Hillenbrand, C-D; Kasten, S et al. (2017): X-ray fluorescence measurements on sediment core PS69/288-3. https://doi.org/10.1594/PANGAEA.874149
  29. Kuhn, G (2010): Documentation of sediment core PS75/168-1. https://doi.org/10.1594/PANGAEA.754974