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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.

Authors

George E.A. Swann george.swann@nottingham.ac.uk



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.

Journal Article Type Article
Publication Date Jan 1, 2010
Journal Journal of Paleolimnology
Print ISSN 0921-2728
Electronic ISSN 0921-2728
Publisher Humana Press
Peer Reviewed Peer Reviewed
Volume 44
Issue 2
APA6 Citation Swann, G. E. (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), doi:10.1007/s10933-009-9308-9
DOI https://doi.org/10.1007/s10933-009-9308-9
Publisher URL http://dx.doi.org/10.1007/s10933-009-9308-9
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information The final publication is available at link.springer.com

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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