Pliocene and Pleistocene mass movement events in Lake El´gygytgyn, northeastern Siberia, and their effects on the ´pelagic´ sediment record
Final Report Abstract
The investigations reported here have contributed significantly to the ICDP funded „El'gygytgyn Drilling Project“ in northeastern Siberia. They applied to the 318 m long lake sediment record that was recovered in spring 2009 above a suevite layer in the 3.6 Myr old El´gygytgyn impact crater, with focus on the mass movement deposits that occur incised into the 'pelagic' lake sediments. The scientific expectations of the project were widely fulfilled, namely: (i) the mass movement deposits in the record were identified, (ii) the mass movement deposits were classified and genetically interpreted, (iii) the potentially erosive mass movement events were identified and maximum values for erosion were detected, and (iv) first information concerning the the source areas of mass movement events was obtained. The project thus, firstly, provided fundamental contributions to the unterstanding of gravitational mass movement processes in large lakes. Secondly, it provided important background information for the paleoclimatological investigation of the sediment core that was and will be carried out on the ´pelagic´ sediments within the scopes of other national and international projects.
Publications
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(2012): 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia. - Science, 337: 315-320
Melles M., Brigham-Grette J., Minyuk P.S., Nowaczyk N.R., Wennrich V., DeConto R.M. Anderson P.M., Andreev A.A., Coletti A., Cook T.L., Haltia-Hovi E., Kukkonen M., Lozhkin A.V., Rosén P., Tarasov P., Vogel H. & Wagner B.
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(2013): Mass movement deposits in the 3.6 Ma sediment record of Lake El’gygytgyn, Far Easst Russian Arctic. - Climate of the Past, 9: 1949-1967
Sauerbrey M.A., Juschus O., Gebhardt A.C., Wennrich V., Nowaczyk N.R. & Melles M.
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(2013): Multivariate statistic and time series analysis of grain-size data in quaternary sediments of Lake El´gygytgyn, NE Russia. - Climate of the Past, 9: 2459-2470
Francke A., Wennrich V., Sauerbrey M., Juschus O, Melles M. & Brigham-Grette J.
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(2013): Petrophysical characterization of the lacustrine sediment succession drilled in Lake El’gygytgyn, Far East Russian Arctic. - Climate of the Past, 9: 1933-1947
Gebhardt C., Francke A., Kück J., Sauerbrey M., Niessen F., Wennrich V. & Melles M.
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2013: Chronology of Lake El’gygytgyn sediments – a combined magnetostratigraphic, palaeo-climatic and orbital tuning study based on multi-parameter analyses. - Climate of the Past, 9: 2413-2432
Nowaczyk, N.R., Haltia, E.M., Ulbricht, D., Wennrich, V., Sauerbrey, M.A., Rosén, P., Vogel, H., Francke, A., Meyer-Jacob, C., Andreev, A.A. & Lozhkin, A.V.
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(2014): Pliocene to Pleistocene climate and environmental history of Lake El'gygytgyn, Far East Russian Arctic, based on high-resolution inorganic geochemistry data. - Climate of the Past, 10: 1381-1399
Wennrich V., Minyuk P.S., Borkhodoev V., Francke A., Ritter B., Nowaczyk N.R., Sauerbrey M.A., Brigham-Grette J. & Melles M.
