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Palaeoshorelines of glacial Lake Kuray–Chuja, south-central Siberia: form, sediments and process

By
P. A. Carling
P. A. Carling
School of Geography, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
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M. Knaapen
M. Knaapen
HR Wallingford Ltd., Howbery Park, Wallingford, OX10 8BA, UK
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P. Borodavko
P. Borodavko
Institute of Monitoring on Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Sciences, Akademicheskii Prospekt 10/3, 634055 Tomsk, Russian Federation
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J. Herget
J. Herget
Geographisches Institut, Universität Bonn, D-53115 Bonn, Germany
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I. Koptev
I. Koptev
Institute of Geology and Oil and Gas Industries, Tomsk Polytechnic University, 30 Lenin Avenue, 634050, Tomsk, Russian Federation
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P. Huggenberger
P. Huggenberger
Geologisches Institut, Departement Geowissenschaften, Universität Basel, Bernoullistrasse 32, 4056 Basel, Germany
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S. Parnachev
S. Parnachev
Tomsk Petroleum Institute (TomskNIPIneft), 72 Mira Ave, 634027, Tomsk, Russian Federation
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Published:
January 01, 2011

Abstract

Glacial lake Kuray–Chuja which occupied the Kuray and Chuja Basins during the Quaternary Period (Marine Isotope Stages 2 and 3) left distinct shoreline features around the basin margins. At the greatest extent the lake had a surface area of 2951 km2 with wind fetches up to 70 km. Wind waves constructed erosional, erosional-accumulative and accumulative strandlines, the latter including spits, tombolos, barrier beaches and offshore bars. Strandlines range in altitude between c. 1600 and 2100 m, the range in altitudes demonstrating lake level variations through time. The shoreline forms and stratigraphy are detailed. Particular attention is given to the presence of pocket beaches on rock-coasts, the alluvial strandlines of which have distinctive alongshore gradients. Although reasonably ascribed to regional differential tectonic uplift, the possibility that the local alongshore gradients are augmented as a process response to alongshore drift of sediment in a sediment-starved system of closed coastal cells is explored using a simple numerical model.

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Contents

Geological Society Special Publication

Ice-Marginal and Periglacial Processes and Sediments

I. P. Martini
I. P. Martini
University of Guelph, Canada
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H. M. French
H. M. French
University of Guelph, Canada
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A. PéRez Alberti
A. PéRez Alberti
Universidade de Santiago de Compostela, Spain
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Geological Society of London
Volume
354
ISBN electronic:
9781862396029
Publication date:
January 01, 2011

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