Abstract
INFORMATION about the folding and faulting of the rock layers beneath the sea can be obtained by geophysical techniques, used in conjunction with sampling; but it is not easy to give a precise position of the geological boundaries on the floor, and only large faults can be inferred. The required detail can be obtained, however, by means of a geologists' asdic, where there are rock floors which consist of alternations of hard and soft beds and the former, being resistant to erosion, stand proud as ridges. In the English Channel, the Purbeck, Portland, Kimmeridge, Corallian beds and the ancient rocks occurring as shoals to east and west of Eddystone give good results, while Tertiary, Chalk and New Red Sandstone beds are too homogeneous to be suitable.
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Chesterman, W. D., Clynick, P. R., and Stride, A. H., Acustica, 8, 286 (1958).
Stride, A. H., J. Mar. Biol. Assoc. U.K., 38, 313 (1959).
Stride, A. H., Dock and Harb. Authority, 40, 145 (1959).
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STRIDE, A. Recognition of Folds and Faults on Rock Surfaces beneath the Sea. Nature 185, 837 (1960). https://doi.org/10.1038/185837a0
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DOI: https://doi.org/10.1038/185837a0
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