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Glaciation-Influenced Debris Flow Deposits: East Greenland Slope

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Glaciated Continental Margins

Abstract

Debris flow deposits dominate the acoustic profiles of the East Greenland continental slope (Figures 1 and 2). Huntec Deep Tow Seismic (DTS)® and 10 in3 sleeve gun provided the seismic source signatures. Huntec data recorded by the internal hydrophone were prefiltered between 1.0 and 6.0 kHz and digitized by the Ferranti SE880 at 50 µsec (20 kHz) with a data window of 400 to 500 µsec (i.e. between 8000 to 10000 samples per shot trigger). The boomer source was an ED10F/C powered by 4 kv (560 joules). The sleeve gun data were prefiltered between 100 and 1500 kHz and digitized by the Ferranti SE880 at 200 µsec (5 kHz) with a data window of 1 and 2 sec (at 5000 to 10000 samples per shot trigger). Details of the methodology are well described in Asprey et a 1. (1994).

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References

  • Aksu, A. E. and Hiscott, R. N. 1992. Shingled Quaternary debris flow lenses on the north-east Newfoundland Slope. Sedimentology, 39, 193–206.

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  • Asprey, K. W., Syvitski, J. P. M., Andrews, J. T., and Dowdeswell, J. A. 1994. CANAN-PONAM cruise HU93–030: West Iceland to East Greenland. Geological Survey of Canada Open File Report 2824, 150 p.

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  • Mienert, J., Andrews, J. T. and Milliman, J. D. 1992. The East Greenland Continental Margin (65 N) since the last deglaciation: Changes in sea floor properties and ocean circulation. Marine Geology, 106: 217–238.

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  • Stein, A. B. 1996. Seismic stratigraphy and seafloor morphology of the Kangerlussuaq Region, East Greenland: Evidence for glaciations to the continental shelf break during the Late Weichselian Age and earlier. Master of Science Thesis, University of Colorado.

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Authors and Affiliations

  1. Institute of Arctic and Alpine Research, Dept. of Geological Sciences, University of Colorado at Boulder, 1560 30th St., Boulder, Colorado, 80303, USA

    Andrew B. Stein & James P. M. Syvitski

Authors
  1. Andrew B. Stein
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  2. James P. M. Syvitski
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Editor information

Editors and Affiliations

  1. Institute for Geophysics, The University of Texas at Austria, 8701 N. MoPac Expressway, Austin, TX, 78759, USA

    Thomas A. Davies

  2. Department of Geography, Memorial University of Newfoundland, Alexander Murray Bldg., St. John’s, NF, A1B 3X5, Canada

    Trevor Bell

  3. Marine and Coastal Geology, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA, 94025-3591, USA

    Alan K. Cooper

  4. Bedford Institute of Oceanography, Geological Survey of Canada (Atlantic), P.O. Box 1006, Dartmouth, Nova Scotia, B26 4A2, Canada

    Heiner Josenhans

  5. Byrd Polar Research Center, 1090 Carmack Rd., Columbus, OH, 43210, USA

    Leonid Polyak

  6. Norwegian Polar Institute, P.O. Box 5072, Majorstua, Oslo, N0301, Norway

    Anders Solheim

  7. Murchison House, British Geological Survey, West Mains Road, Edinburgh, EH9 3LA, Scotland, UK

    Martyn S. Stoker

  8. Dept. of Geology, Northern Illinois University, DeKalb, IL, 60115, USA

    Jay A. Stravers

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© 1997 Chapman & Hall

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Stein, A.B., Syvitski, J.P.M. (1997). Glaciation-Influenced Debris Flow Deposits: East Greenland Slope. In: Davies, T.A., et al. Glaciated Continental Margins. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5820-6_51

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  • DOI: https://doi.org/10.1007/978-94-011-5820-6_51

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-412-79340-0

  • Online ISBN: 978-94-011-5820-6

  • eBook Packages: Springer Book Archive

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