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RISE - project 105

Reconstruction of the Ice sheet volume and the last deglaciation on Svalbard – constrained by surface Exposure and radiocarbon dating Participant of Kinnvika and APEX IPY projects Anne Hormes, UNIS.

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RISE - project 105

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  1. Reconstruction of the Ice sheet volume and the last deglaciation on Svalbard – constrained by surface Exposure and radiocarbon dating Participant of Kinnvika and APEX IPY projects Anne Hormes, UNIS

  2. Arctic Palaeoclimate and its EXtremes (APEX)Endorsed by the ICSU/WMO Joint Committee for IPY as project #39 RISE - project 105

  3. What were the dimensions, age and palaeoglaciology of the Arctic ice sheets during glacial maxima? ? ? ? Svendsen et al., 2004

  4. Freshwater forcing of abrupt climate changes? Wally Broecker 1985, etc. Size matters! Configuration and size of the last glaciation ice sheet determines the volume of freshwater input at the end of the last glaciation

  5. Marine Geology evidence of Ice streams and trough mouth fans No age constrain Source: presentation by Jan Sverre Laberg & Karin Andreassen, University of Tromsø, 2005

  6. Bathymetry west of Prins Karls Forlandet Core was taken at the continental ridge and a diamict with an infinite radiocarbon age found Late Glaciation or Older Glaciation? Till or Debris flow deposits?

  7. Were there ice free areas during LGM? Cosmogenic nuclide dating using 10Be used on Amsterdamøya and Danskøya indicates that these plateaux were ice free during LGM Olafur Ingolfsson, AG-321 Landvik et al., Geology, 2003

  8. Brøggerhalvøya exhibits marine terraces with no glacial deposits of LGM (Forman et al. 2004)

  9. Principle of cosmogenic nuclide dating

  10. Cosmogenic nuclide dating of erratic boulders east of Riepfjorden July 2007 Text

  11. Cosmogenic nuclide dating of erratic boulders east of Riepfjorden July 2007 Text

  12. Sampling of striated bedrock east of Kinnvika in July 2007

  13. Field sites for mapping and sampling of glacial polished bedrock, erratic boulders and trimlines

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