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First results of a geophysical survey on the northern flank of the Storegga slides (Norway). Premiers résultats d'une étude géophysique sur le flanc nord des glissements de Storegga (Norvège)

Record type: Article

The Storegga slides, off Norway, are among the largest submarine slides ever known on a continental slope. The HYDRATECH cruise on N/O Le Suroît aimed at a high-resolution survey of an area at the northern boundary of the slides. This survey images in great detail the bottom simulating reflector (BSR) extent and properties, the various fluid escape structures and the sediment deformations. The combination and the quality of the data help to understand the still poorly constrained relationships between fluid escapes, gas hydrates and slope stability in the survey area.
Les glissements de Storegga, au large de la Norvège, sont les plus grands glissements connus sur une pente continentale. Lors de la campagne Hydratech sur le N/O Le Suroît, un levé géophysique à haute résolution d'un secteur du flanc nord des glissements a été effectué. Ce levé permet d'imager en détail l'extension et les propriétés du Bottom Simulating Reflector (BSR), les structures d'échappement de fluides et les déformations sédimentaires. La combinaison des différentes données acquises ainsi que leur qualité permettent de mieux comprendre les interactions encore mal contraintes entre fluides, hydrates de gaz et glissements sur la zone d'étude.

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Citation

Nouze, H., Contrucci, I., Foucher, J.P., Marsset, B., Thomas, Y., Thereau, E., Normand, A., Le Drezen, E., Didailler, S., Regnault, J.P., Le Conte, S., Guidart, S., Lekens, W., Dean, S. and Throo, A. (2004) First results of a geophysical survey on the northern flank of the Storegga slides (Norway). Premiers résultats d'une étude géophysique sur le flanc nord des glissements de Storegga (Norvège) Comptes Rendus Geoscience, 336, (13), pp. 1181-1189. (doi:10.1016/j.crte.2004.06.005).

More information

Published date: 2004
Additional Information: Océanographie (Géophysique marine)
Keywords: storegga, gas hydrates, fluid escapes, slope stability, hydrates de gaz, sorties de fluides, stabilité des pentes

Identifiers

Local EPrints ID: 15810
URI: http://eprints.soton.ac.uk/id/eprint/15810
ISSN: 1631-0713
PURE UUID: 92f7cebd-4db5-49c5-bbc9-da9be064fbcb

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Date deposited: 01 Jun 2005
Last modified: 17 Jul 2017 16:46

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Contributors

Author: H. Nouze
Author: I. Contrucci
Author: J.P. Foucher
Author: B. Marsset
Author: Y. Thomas
Author: E. Thereau
Author: A. Normand
Author: E. Le Drezen
Author: S. Didailler
Author: J.P. Regnault
Author: S. Le Conte
Author: S. Guidart
Author: W. Lekens
Author: S. Dean
Author: A. Throo

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