Abstract
Bottom and sub-bottom reflection patterns received by the PARASOUND system (4 kHz) document 24 filled paleoriver channels in the uppermost sediments (l–13m) of the Laptev Sea shelf. The surfaces of the paleochannel fillings range from 32 to 97 m below the present sea level. The rivers are supposed to have been active during Weichselian time when the sea level was up to 120 m below that of today. They were probably filled during termination 1 until the transgression reached the present-day 30 m-isobath. The observed paleoriver channels are most likely related to the Olenek, Lena and Jana rivers and to local drainage systems on the Taymyr Peninsula and the New Siberian Islands. In the depth range of 2 to 20 m sub-bottom, a strong post-sedimentary reflector is commonly found, interpreted as the surface of submarine permafrost. The formation of paleoriver channels and permafrost is associated with subaerial exposure and suggest that most of the Laptev Sea shelf area was not covered by a large ice sheet during the last glacial maximum.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Allen, J.R.L. (1983) Studies in fluviatile sedimentation: Bars, bar-complexes and sandstone sheets (Low- sinuosity braided streams) in the Brownstones (L. Devonian), Welsh Borders. Sedim. Geol., 33, 237–293.
Blanchon, P. and J. Shaw (1995) Reef drowning during the last deglaciation: Evidence for catastrophic sea-level rise and ice-sheet collapse. Geology, 23 (1), 4–8.
Chappell, J. and N.J. Shackleton (1986) Oxygen isotopes and sea level. Nature, 324, 137–140.
Damuth, J.E. (1978) Echo character of the Norwegian-Greenland Sea: relationship to Quaternary sedimentation. Mar. Geol., 28, 1–36.
Dunayev, N.N. and J.A. Pavlidis (1990) A model of the late Pleistocene glaciation of Eurasiatic arctic shelf. In: Arctic research - Advances and prospects (Vol. 2), Proceedings of the conference of Arctic and Nordic Countries on coordination of research in the Arctic, Kotlyakov, V.M. and V.E. Sokolov (eds.), Academy of Sciences of the USSR, Leningrad, December 1988, 70–72.
Fairbanks, R.G. (1989) A 17, 000-year glacio-eustatic sea level record: influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation. Nature, 342, 637–642.
Flint, R.F. (1971) Glacial and Quaternary Geology. John Wiley and Sons, New York, 892pp.
Füchtbauer, H. (1988) Sedimente und Sedimentgesteine, Teil II: Sediment-Petrologie. Schweizerbart′sche Verlagsbuchhandlung, Stuttgart, 1141pp.
Fütterer, D.K. (ed.; 1994) The expedition ARCTIC′93. Leg ARK-IX/4 of RV “Polarstern” 1993. Ber. Polarforsch., 149, 244pp.
Grosswald, M.G. (1990) Late Pleistocene ice sheet in the Soviet Arctic. In: Arctic research - Advances and prospects (Vol. 2), Proceedings of the conference of Arctic and Nordic Countries on coordination of research in the Arctic, Kotlyakov, V.M. and V.E. Sokolov (eds.), Academy of Sciences of the USSR, Leningrad, December 1988, 18–23.
Holmes, M.L. and J.S. Creager (1974) Holocene history of the Laptev Sea continental shelf. In: Marine Geology and Oceanography of the Arctic Seas, Herman, Y. (ed.), Springer-Verlag, New York, 211–230.
Miall, D.A. (1977) A review of the braided-river depositional environment. Earth-Sci. Rev., 13, 1–62.
Niessen, F., D. Weiel, T. Ebel, J. Hahne, C. Kopsch, M. Melles, E. Musatov and R. Stein (1997) Weichselian glaciation in Central Siberia - Implications from marine and lacustrine high resolution seismic profiles and sediment cores. In: Abstract Supplement No 1, Terra Nova 9, Oxburgh, E.R. (ed.), European Union of Geosciences, Strasbourg, 208.
Nürnberg, D., D.K. Fütterer, N. Nørgaard-Pedersen, C.J. Schubert, R.F. Spielhagen and M. Wahsner (1995) The depositional environment of the Laptev Sea continental margin: Preliminary results from the R/V Polarstern ARK IX-4 cruise. Polar Res., 14 (1), 43–53.
Rachor, E. (1997) Scientific Cruise Report of the Arctic Expedition ARK-XI/1 of RV “Polarstern” in 1995. Ber. Polarforsch., 226, 157.
Rogers, J.C. and J.L. Morack (1983) Geophysical detection of subsea permafrost. In: Handbook of geophysical exploration at sea, Geyer, R.A. (ed.), CRC Press, Inc., Boca Raton, Florida, 187–210.
Romanovskii, N. (1996) Permafrost distribution on the Laptev Sea shelf. In: Third workshop on Russian- German cooperation: Laptev Sea system, Kassens, H., F. Lindemann and B. Rohr (eds.), Terra Nostra, Schriften der Alfred-Wegener-Stiftung, 96/6, 111.
Schumm, S.A. (1977) The fluvial system. John Wiley & Sons, New York, 337pp.
Spiess, V. (1993) Digitale Sedimentechographie - Neue Wege zu einer hochauflösenden Akustostratigraphie. Ber. Fachb. Geowiss. Univ. Bremen, 35, 199pp.
Treshnikov, A.F. (1985) Palaeogeographic atlas of the shelf regions of Eurasia for the Mesozoic and Cenozoic, Volume 2, Maps (in Russian). Main administration of geodesy and cartography of the USSR, Moscow, 204pp.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Kleiber, H.P., Niessen, F. (1999). Late Pleistocene Paleoriver Channels on the Laptev Sea Shelf - Implications from Sub-Bottom Profiling. In: Kassens, H., et al. Land-Ocean Systems in the Siberian Arctic. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60134-7_49
Download citation
DOI: https://doi.org/10.1007/978-3-642-60134-7_49
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-64270-8
Online ISBN: 978-3-642-60134-7
eBook Packages: Springer Book Archive