International Journal of Earth Sciences

, Volume 91, Issue 1, pp 154–167

Late Quaternary ice-rich permafrost sequences as a paleoenvironmental archive for the Laptev Sea Region in northern Siberia

  • Lutz Schirrmeister
  • Christine Siegert
  • Victor V. Kunitzky
  • Pieter M. Grootes
  • Helmut Erlenkeuser
Original Paper

DOI: 10.1007/s005310100205

Cite this article as:
Schirrmeister, L., Siegert, C., Kunitzky, V.V. et al. Int J Earth Sci (2002) 91: 154. doi:10.1007/s005310100205

Abstract

Ice-rich permafrost sequences with large polygonal ice wedges represent excellent archives for paleoenvironmental reconstruction. Such deposits contain numerous well-preserved records (ground ice, paleosols, peat beds, different types of fossils), which permit characterization of environmental conditions during a clearly defined period of the past 60 ka. Based on field investigations carried out within framework of the German-Russian project "Laptev Sea System 2000" on the Bykovsky Peninsula (SE of the Lena Delta) results from cryolithological studies, sedimentological analyses, as well as new radiocarbon data are presented. For the first time it is shown that the Ice Complex accumulated without significant interruptions from approximately 60 k.y. B.P. until the end of the Pleistocene. Geochemical data (total organic carbon, C/N, δ13Corg) and the mass-specific magnetic susceptibility clearly show changing environmental conditions from stadial to interstadial times in the Late Pleistocene and during the transition to the Holocene. These results permit us to reconstruct the development of an Arctic periglacial landscape in the coastal lowland during Ice Complex formation in the Late Quaternary. This evolution coincided generally with the global environmental trend up to marine isotope stage 4.

Late Quaternary Paleoenvironment Permafrost deposits Peat Thermokarst Siberian Arctic Laptev Sea Radiocarbon dating 

Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • Lutz Schirrmeister
    • 1
  • Christine Siegert
    • 1
  • Victor V. Kunitzky
    • 2
  • Pieter M. Grootes
    • 3
  • Helmut Erlenkeuser
    • 3
  1. 1.Alfred Wegener Institut for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, GermanyGermany
  2. 2.Permafrost Institute, Russian Academy of Science, Siberian Branch, Yakutsk-18677018, Sakha (Yakutia), RussiaRussian
  3. 3.Leibniz Laboratory, Christian-Albrecht-University, Max-Eyth-Strasse 11, 24098 Kiel, GermanyGermany

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