Title

Limnological and sedimentary processes at Sawtooth Lake, Canadian High Arctic, and their influence on varve formation

Publication Title

Journal of Paleolimnology

Document Type

Article

Department or Program

Geology

Publication Date

10-2008

Keywords

image analysis, Paleoclimate, physical limnology, sedimentary process, thin-section, varves

Abstract

This paper synthesizes data collected to document the modern limnological and sedimentary processes in South Sawtooth Lake located on northern Ellesmere Island, Nunavut, Canada. Field observations show that the finely laminated sediments deposited in the distal basin are formed by the settling of overflows and interflows, and in rare occasions, by non-erosive hyperconcentrated density flows. Thin-sections of these sediments allowed for the classification of the sedimentary fabrics into six facies, each representing different limnological processes. The sediments in this distal basin are considered to be continuous and annually laminated (varved) based on radioisotope analyses, and both limnological and sedimentological evidence.

Comments

Original version is available from the publisher at: https://link.springer.com/article/10.1007%2Fs10933-008-9210-x

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