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Interpretation of Si concentrations in lake sediments: three case studies
Luleå tekniska universitet.
2000 (English)In: Environmental Geology, ISSN 0943-0105, E-ISSN 1432-0495, Vol. 40, no 1-2, p. 64-72Article in journal (Refereed) Published
Abstract [en]

The biogenic Si concentration in a sediment can be determined as the non-detrital Si concentration by normalization of the total Si concentration with Al. This procedure is based upon the assumptions that (1) that Al exists predominantly in detrital, i.e. minerogenic, particles and (2) that biogenic Si (mainly diatom frustules) is the dominating non-detrital Si phase. This paper focuses on the reasons for the variations of the non-detrital Si concentration in these lake sediments. Data from three lakes are presented, representing three principally different cases regarding the Si concentration. The processes controlling the concentrations of detrital and non-detrital Si are discussed.

Place, publisher, year, edition, pages
2000. Vol. 40, no 1-2, p. 64-72
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
URN: urn:nbn:se:ltu:diva-5139DOI: 10.1007/PL00013330Local ID: 32a12460-1ba8-11dd-8c59-000ea68e967bOAI: oai:DiVA.org:ltu-5139DiVA, id: diva2:978013
Note

Validerad; 2000; 20080506 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-02-15Bibliographically approved

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