Journal of Paleolimnology

, Volume 40, Issue 3, pp 963–985

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

  • Pierre Francus
  • Raymond S. Bradley
  • Ted Lewis
  • Mark Abbott
  • Mike Retelle
  • Joseph S. Stoner
Original Paper

DOI: 10.1007/s10933-008-9210-x

Cite this article as:
Francus, P., Bradley, R.S., Lewis, T. et al. J Paleolimnol (2008) 40: 963. doi:10.1007/s10933-008-9210-x

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.

Keywords

Varves Physical limnology Image analysis Thin-section Sedimentary processes Paleoclimate 

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Pierre Francus
    • 1
    • 2
    • 3
  • Raymond S. Bradley
    • 1
  • Ted Lewis
    • 1
  • Mark Abbott
    • 1
    • 4
  • Mike Retelle
    • 5
  • Joseph S. Stoner
    • 6
  1. 1.Department of Geosciences, Climate System Research CenterUniversity of MassachusettsAmherstUSA
  2. 2.Centre Eau, Terre et EnvironnementInstitut National de la Recherche ScientifiqueQuébecCanada
  3. 3.GEOTOP-UQAM-McGillMontréalCanada
  4. 4.Department of Geology and Planetary ScienceUniversity of PittsburghPittsburghUSA
  5. 5.Department of GeologyBates CollegeLewistonUSA
  6. 6.College of Oceanic and Atmosphere SciencesOregon State UniversityCorvallisUSA

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