Record Search Query:[Parameters: Topic='PALEOCLIMATE', Term='OCEAN/LAKE RECORDS', Variable_Level_1='SEDIMENTS']
AFI 04/17_02 - Glacial-interglacial changes in the lost drainage basin on the West Antarctic Ice Sheet - Sediment cores collected in the Bellingshausen Sea, 2004
Abstract:
The main aim of this project was to carry out the first systematic investigation of the former ice drainage basin in the southern Bellingshausen Sea, using sediment cores, swath bathymetry by means of the EM120 multibeam echo sounder and the TOPAS sub-bottom profiling system on RRS James Clark Ross (JR104). Reconnaissance data collected on previous cruises JR04 (1993) and cruises of R/V Polarstern ... in 1994 and 1995 suggested that this area contained the outlet of a very large ice drainage basin during late Quaternary glacial periods. The data and samples collected allowed us to address questions about the timing and rate of grounding line retreat from the continental shelf, the dynamic character of the ice that covered the shelf, and its influence on glaciomarine processes on the adjacent continental slope.
Antarctic Environmental Data Centre
British Antarctic Survey
High Cross, Madingley Road
City:
Cambridge
Province or State:
Cambridgeshire
Postal Code:
CB3 0ET
Country:
UNITED KINGDOM
Publications/References
Noormets, R., Dowdeswell, J.A., Larter, R.D., Ó Cofaigh, C., Evans, J. 2009. Morphology of the upper continental slope in the Bellingshausen and Amundsen Seas -implications for sedimentary processes at the shelf edge of West Antarctica., Marine Geology. 258, 100-114 Dowdeswell, J.A., Ó Cofaigh, C., Noormets, R., Larter, R.D., Hillenbrand, C.-D., Benetti, S., Evans, J., Pudsey, C.J. ... 2008. A major trough mouth fan on the continental margin of the Bellingshausen Sea West Anarctica: the Belgica Fan., Marine Geology. 252,129-140. Hillenbrand, C.-D.,Moreton, S.G., Caburlotto, A., Pudsey, C.J., Lucchi, R.G., Smellie, J.L., Benetti, S., Grobe, H., Hunt, J., Larter, R. 2008. Volcanic time-markers for marine isotopic stages 6 and 5 in Southern Ocean sediments and Antarctic ice cores:implication for tephra correlations between palaeoclimatic records., Quaternary Science Reviews. 27, 518-540. Ó Cofaigh, C., Dowdeswell, J.A., Evans, J., Larter, R .D. 2008. Geological constraints on Antarctic palaeoice-stream retreat., Earth Surface Processes and Landforms. 33, 513-525 Ó Cofaigh C., Evans J., Dowdeswell J. A., and Larter R. D. 2007. Till characteristics, genesis and transport beneath Antarctic paleo-ice streams., Journal of Geophysical Research. 112, No. F3, F03006. doi:10.1029/2006JF000606. Benetti, S., Hillenbrand, C., Larter, R.D. & Dowdeswell, J.A. 2006. Variability in glaciomarine sedimentary processes on a West Antarctic trough mouth fan. Eos, Transactions, AGU, 87(52), Fall Meeting Supplement. Hernandez-Molina, F.J., Larter, R.D., Rebesco, M. & Maldonado, A. 2006. Miocene reversal of bottom water flow along the Pacific Margin of the Antarctic Peninsula: Stratigraphic evidence from a contourite sedimentary tail. Marine Geology. 228, 93-116 Hillenbrand, C.-D., Baesler, A. & Grobe, H. 2005. The sedimentary record of the last glaciation in the western Bellingshausen Sea (West Antarctica ): Implications for the interpretation of diamictons in a polar-marin e setting. Marine Geology, 216, 191-204. Ó Cofaigh, C., Larter, R.D., Dowdeswell, J.A., Hillenbrand, C.-D., Pudsey, C.J., Evans, J. & Morris, P. 2005. Flow of the West Antarctic Ice Sheet on the continental margin of the Bellingshausen Sea at the Last Glacial Maximum. Journal of Geophysical Research, 110, B11, doi: 10.1029/2005JB003619. Thatje, S., Hillenbrand, C.-D. & Larter, R.D. 2005. On the origin of Antarctic marine benthic community structure, Trends in Ecology and Evolution, Vol. 20, No. 10, 534-540. Ó Cofaigh, C., Evans, J., Dowdeswell, J.A., Larter, R.D. & Pudsey, C.J. 2005. Till generation and transport beneath Antarctic palaeo-ice streams: a marine geophysical perspective. International Conference on Glacial Sedimentary Processes and Products. Larter, R.D., Ó Cofaigh, C., Hillenbrand, C.-D., Dowdeswell, J.A., Pudsey, C.J., Evans, J. & Morris, P. 2005. New data from the southern Bellingshausen Sea reveal a major lost drainage basin of the West Antarctic ice sheet. Geophysical Research Abstracts, Volume 7. Hillenbrand, C.-D., Ó Cofaigh, C., Larter, R., Dowdeswell, J., Pudsey, C., Ehrmann, W. & Grobe, H. 2005. Glacial and glaciomarine environments in the southern Bellingshausen Sea since the last glacial maximum - a reconstruction based on the sedimentary record. International Conference on Glacial Sedimentary Processes and Products. Larter, R.D., Dowdeswell, J.A., Pudsey, C.J., Evans, J., Hillenbrand, C.-D., Morris, P. & O'' Cofaigh, C. 2004. Investigations of a major palaeo-outlet of the West Antarctic Ice Sheet in the southern Bellingshausen Sea: preliminary results from RRS James Clark Ross Cruise JR104. Terra Nostra, Schriften der Alfred-Wegener-Stiftung, 2004/4. Larter, R.D., Dowdeswell, J.A., Pudsey, C.J., Evans, J., Hillenbrand, C.-D., Morris, P. & O'' Cofaigh, C. 2004. Investigations of a major palaeo-outlet of the West Antarctic Ice Sheet in the so uthern Bellingshausen Sea: preliminary results from RRS James Clark R oss Cruise JR104. Antarctic Funding Initiative [AFI] Third Workshop. O'' Cofaigh, C., Dowdeswell, J.A., Larter, R.D., Pudsey, C.J., Hillenbrand, C.-D., Evans, J. & Morris, P., 2004. Late Quaternary ice-sheet dynamics in the southern Bellingshuasen Sea as reconstructed from marine geophysical evidence. Antarctic Peninsula Climate Variability: History, Causes and Impacts - Abstracts. Hillenbrand, C.-D., Larter, R.D., Pudsey, C.J., Dowdeswell, J.A., O'' Cofaigh, C., Evans, J. & Morris, P. 2004. Glacial and glaciomarine sedimentary successions from the southern Bellingshausen Sea: archives for environmental changes in the Antarctic peninsula region since the last glacial period. Antarctic Peninsula Climate Variability: History, Causes and Impacts - Abstracts. Ó Cofaigh C., Pudsey C. J., Dowdeswell J. A., and Morris P. 2002, Evolution of subglacial bedforms along a paleo-ice stream, Antarctic Peninsula continental shelf. Geophysical Research Letters. 29 (8). doi:10.1029/2001GL014488. Ó Cofaigh C., Dowdeswell J. A., and Pudsey C. J. 2001. Late Quaternary iceberg-rafting along the Antarctic Peninsula continental rise and in the Weddell and Scotia seas. Quaternary Research , 56, , 308-321.
