Investigation of a modern glacimarine sedimentary environment in the fjord Kuannersuit Sulluat, Disko, West Greenland

A 56 cm long sediment core from Kuannersuit Sulluat, a fjord on the island Disko, West Greenland is used to infer modern sedimentation rates and describe the sedimentary environment. The fjord abuts a catchment area dominated by a recently surging glacier (1995–1999). Analyses of the core included magnetic susceptibility, x-radiographs and grain size analysis. From these analyses it is concluded that deposition takes place both through sediment settling from the water column and by gravity flows. Modern sedimentation rates in the fjord appear to be more than 10 times higher than average annual rates (3–5 mm/a) during the Holocene. This is due to changes in melt-water discharge and shorter distance to the sediment source caused by the glacier surge. Episodic gravity flows may result in a deposition of 12 cm sediment and thereby strongly influence long-term average sedimentation rates

Fjord · Geochemistry · Sedimentary rock · Geological Studies and Exploration · Geology · Geology and Paleoclimatology Research · Methane Hydrates and Related Phenomena · Oceanography · Paleontology

• Suspended sediment transport in glacial meltwater during the initial quiescent phase after a major surge event at Kuannersuit Glacier, Greenland

  Niels Tvis Knudsen, Jacob C Yde et al.•Geografisk Tidsskrift-Danish…•2007

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• Role of landscape parameters in riverine run-off, and sediment and organic matter yield on Disko Island, West Greenland

  Morten Rasch, Niels Nielsen et al.•Geografisk Tidsskrift-Danish…•2003

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• Comparison of laser grain size analysis with pipette and sieve analysis

  Open Access•MARTIN KONERT, J Vandenberghe•Sedimentology•1997

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• Holocene Landscape Evolution in the Mellemfjord Area, Disko Island, Central West Greenland

  Humlum Humlum, Christiansen Christiansen et al.•Geografisk Tidsskrift-Danish…•1995

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