Abstract
A DESCRIPTION has been given of some large sand waves on La Chapelle Bank which lie parallel to the general direction of the edge of the continental shelf1. They occur within a zone about 10 miles wide, have a mean separation of 2,800 ft. and are up to 40 ft. high. Berthois2 believes them to be fossil ridges while Cartwright3 has shown in some detail how they could be formed by stationary waves, which develop in the thermocline as the tidal streams, moving landwards, feel the constraining influence of the shelf. These would be equivalent to lee-waves found on the down-wind side of a mountain.
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References
Cartwright, D., and Stride, A. H., Nature, 181, 41 (1958).
Berthois, I., Rev. Trav. Inst. Pêches marit., 23, 225 (1959).
Cartwright, D., Proc. Roy. Soc., 253, 218 (1959).
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STRIDE, A., TUCKER, M. Internal Waves and Waves of Sand. Nature 188, 933 (1960). https://doi.org/10.1038/188933a0
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DOI: https://doi.org/10.1038/188933a0
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