The Fram Slide off Svalbard: a submarine landslide on a low-sedimentation-rate glacial continental margin

Submarine slope failures are a widespread, hazardous phenomenon on continental margins. The prevailing opinion links large submarine landslides along the glaciated NW European continental margins to overpressure generated by the alternation of rapidly deposited glacigenic and hemipelagic material. H...

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Bibliographic Details
Published in:Journal of the Geological Society
Main Authors: Elger, Judith, Berndt, Christian, Krastel, Sebastian, Piper, D. J. W., Gross, Felix, Spielhagen, Robert F., Meyer, S.
Format: Article in Journal/Newspaper
Language:English
Published: GSL (Geological Society of London) 2015
Subjects:
Svalbard
Online Access:https://oceanrep.geomar.de/id/eprint/26722/
https://oceanrep.geomar.de/id/eprint/26722/1/2014_Elger-etal_JGeolSoc.pdf
https://doi.org/10.1144/jgs2014-055
Description
Summary:Submarine slope failures are a widespread, hazardous phenomenon on continental margins. The prevailing opinion links large submarine landslides along the glaciated NW European continental margins to overpressure generated by the alternation of rapidly deposited glacigenic and hemipelagic material. Here, we report a newly discovered large landslide complex off NW Svalbard. It differs from all known large slides off NW Europe, as the available data rule out that this slope failure resulted from rapid glacigenic deposition. This suggests that processes such as contour currents, tectonic faulting, and overpressure build-up related to the gas hydrate system must be considered for hazard assessment.

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