A GEOPASS-NERC project on diatom deposition and sediment accumulation in Lake Baikal, Siberia

Flower, Roger and Battarbee, Richard and Lees, Joan and Levina, Olga and Jewson, David and Mackay, Anson and Ryves, David and Strum, Michael and Vologina, Elena (1998) A GEOPASS-NERC project on diatom deposition and sediment accumulation in Lake Baikal, Siberia. Freshwater Forum, 11, pp. 16-29.

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Abstract

This new project is multidisciplinary, with physical and chemical palaeolimnological aspects mainly the responsibility of Swiss and Russian scientists, and the biological limnology and palaeolimnology components mainly undertaken by the British and Russian groups. The overall project aim is to improve palaeoclimate reconstructions using sedimentary diatoms by promoting better understanding of diatom ecology and sediment-forming processes. The initial work plan is divided into four main parts: To understand diatom phytoplankton ecology more fully, to assess taphonomic changes associated with the transformation of phytoplankton diatom communities into sediment assemblages, to demonstrate sediment core integrity and representativity and to calibrate modern diatom assemblages against contemporary climate records. The preliminary results from the interrelated studies of phytoplankton, sediment traps and sediment cores used in GEOPASS-NERC, demonstrate the complexity of links between the living and fossil systems. Furthermore, the nature of recent sedimentation in Lake Baikal is spatially variable and incompletely known. This poses a major challenge to palaeolimnological interpretation. Turbidite deposits and differential preservation of microfossils, combined with inadequate knowledge of the modern ecology of endemic diatoms, all conspire to obfuscate the sedimentary record of environmental change.

Item Type: Article
Title: A GEOPASS-NERC project on diatom deposition and sediment accumulation in Lake Baikal, Siberia
Personal Creator/Author:
CreatorsEmail
Flower, Roger
Battarbee, Richard
Lees, Joan
Levina, Olga
Jewson, David
Mackay, Anson
Ryves, David
Strum, Michael
Vologina, Elena
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 11
Page Range: pp. 16-29
Date: 1998
ISSN: 0961-4664
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Cores; Diatoms; Fossil diatoms; Sedimentation; Bacillariophyceae; Russia; Lake Baikal
Subjects: Limnology
Item ID: 4592
Depositing User: Hardy B Schwamm
Date Deposited: 26 Nov 2010 12:42
Last Modified: 29 Sep 2011 16:11
URI: http://aquaticcommons.org/id/eprint/4592

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