Jökulgarðarnir á Taymyr - jaðarsvæði Karahafsísbreiðunnar á síðustu jökulskeiðum - verkefnislok
Fréttatilkynning verkefnisstjóra.
The results of the project will be important for future reconstructions of the dynamics of the Kara Sea Ice Sheet in time and space and its role in the growth and decay of the former Eurasian Ice Sheet, as well as for past climate change in the Arctic.
The aim of the project was to resolve the extent of the Kara Sea Ice Sheet on the Taymyr Peninsula, Arctic Siberia, during past glacial cycles in order to increase our understanding of its correlations with the Eurasian Ice Sheet and connection to past climate changes in the Arctic. Stratigraphic data and samples for dating with multiple techniques were collected in two expeditions in 2010 and 2012. For technical reasons, the project was much delayed and only preliminary results exist at present. These indicate that the southern part of the Taymyr Peninsula was characterized by fluvial or near-shore environments followed by sea level transgression and full glaciation during the Saalian (>130k years ago). Glaciotectonic deformation of fluvial and shallow-marine sediments suggests ice flow from the Puturana Plateau in the south during the Saalian before the Kara Ice Sheet dominated with ice flow from the north during the Weichselian (after 120k years ago).
Heiti verkefnis: Jökulgarðarnir á Taymyr - jaðarsvæði
Karahafsísbreiðunnar á síðustu jökulskeiðum
Verkefnisstjóri: Ívar Örn Benediktsson, Jarðfræðistofnun
Háskólans
Tegund styrks: Rannsóknastöðustyrkur
Styrkár: 2010-2012
Fjárhæð styrks: 13,32 millj. kr. alls
Tilvísunarnúmer Rannís: 100212-04
The results of the project will be important for future reconstructions of the dynamics of the Kara Sea Ice Sheet in time and space and its role in the growth and decay of the former Eurasian Ice Sheet, as well as for past climate change in the Arctic. The main findings of the two expeditions have been presented at a few conferences.
The results of the project will be reported in two manuscripts that are currently under preparation:
- Benediktsson, Í.Ö.
and Möller, P. Glaciotectonic deformation on southern Taymir, Arctic Russia,
indicates a northward ice advance from the Puturana Plateau during the Saalian.
- Möller, P., Benediktsson,
Í.Ö., Anjar, J., Bernhardson, M., Murray, A.S., Seidenkrantz, M-S, Glacial
history and palaeo-environamental change of southern Taimyr Peninsula, Arctic
Russia, during the Middle and Late Pleistocene.
