Geo-Marine Letters

, Volume 1, Issue 3–4, pp 201–205 | Cite as

Dynamic events near the upper and mid-fan boundary of the Bengal Fan

  • Frans J. Emmel
  • Joseph R. Curray
Article

Abstract

Bathymetric sections across the most recent valley just above and below the transition of upper to middle fan show a northward shift of the thalweg between the confines of the levees. This small-scale migration was followed by a levec break on the higher north side. Part of the bottom currents, which normally would have been contained within the levees, spilled over and spread laterally in a northward direction. This levee break caused a canyonward shift of the boundary between the upper and mid fan, and the diverted flow croded smaller valleys in the western part of the fan.

Keywords

South Fork North Fork Small Valley Levee Height Levee Break 

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References

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    Emmel, F. J., and Curray, J. R., 1981. Channel piracy on the lower Bengal Fan. Geo-Marine Letters, v. 1, p. 123–127.Google Scholar
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    Menard, H. W., 1955. Deep sea channels, topography and sedimentation. American Association of Petroleum Geologists Bulletin, v. 39, p. 236–255.Google Scholar
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    Lonsdale, P., and Hollister, C. D., 1979. Culoffs at an abyssal meander. Geology. v. 7, p. 597–601.CrossRefGoogle Scholar

Copyright information

© A.M. Dowden, Inc 1981

Authors and Affiliations

  • Frans J. Emmel
    • 1
  • Joseph R. Curray
    • 1
  1. 1.Scripps Institution of OceanographyLa Jolla

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