Quaternary International Xxx (2010) 1E23
ARTICLE IN PRESS Quaternary International xxx (2010) 1e23 Contents lists available at ScienceDirect Quaternary International journal homepage: www.elsevier.com/locate/quaint Sedimentary characteristics and origin of the Late Pleistocene Ice Complex on north-east Siberian Arctic coastal lowlands and islands e A review L. Schirrmeister a,*, V. Kunitsky b, G. Grosse c, S. Wetterich a, H. Meyer a, G. Schwamborn a, O. Babiy b, A. Derevyagin d, C. Siegert a a Alfred Wegener Institute for Polar and Marine Research, Periglacial Research, Telegrafenberg A 43, 14471 Potsdam, Germany b Melnikov Permafrost Institute RAS SB, Merslotnaya Street, Yakutsk, Republic of Sakha, (Yakutia), 677010 Russia c Geophysical Institute, University of Alaska Fairbanks (UAF), 903 Koyukuk Drive, Fairbanks, AK 99775, USA d Moscow State University (MSU), Faculty of Geology Russia, Moscow 119899, Vorobievy Gory article info abstract Article history: The origin of Late Pleistocene ice-rich, fine-grained permafrost sequences (Ice Complex deposits) in arctic Available online xxx and subarctic Siberia has been in dispute for a long time. Corresponding permafrost sequences are frequently exposed along seacoasts and river banks in Yedoma hills, which are considered to be erosional remnants of Late Pleistocene accumulation plains. Detailed cryolithological, sedimentological, geochro- nological, and stratigraphical results from 14 study sites along the Laptev and East Siberian seacoasts were summarized for the first time in order to compare and correlate the local datasets on a large regional scale. The sediments of the Ice Complex are characterized by poorly-sorted silt to fine-sand, buried cryosols, TOC contents of 1.2e4.8 wt%, and very high ground ice content (40e60 wt% absolute).
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