A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments

Swann, George E.A. (2010) A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments. Journal of Paleolimnology, 44 (2). pp. 375-385. ISSN 0921-2728

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Abstract

Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on conventional (Si-only) wet-alkaline digestion methods. Although results have provided detailed palaeoenvironmental information, potential errors can arise in accounting for sources of non-BSi. Here, I compare a conventional Si-only method to a Si/Al wet-alkaline digestion method, which in theory provides a more robust correction for concentrations of non-BSi. Late glacial/Holocene-aged sediment from Lake Baikal, Russia was used for the comparison. Results showed no significant difference between the two techniques, indicating that existing Si-only BSi methods are suitable for reconstructing environmental changes when levels of digested non-BSi are low to moderate.

Item Type: Article
Additional Information: The final publication is available at link.springer.com
Schools/Departments: University of Nottingham UK Campus > Faculty of Social Sciences > School of Geography
Depositing User: Swann, Dr George E A
Date Deposited: 17 Jun 2013 09:51
Last Modified: 14 Sep 2016 21:17
URI: http://eprints.nottingham.ac.uk/id/eprint/2014

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