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Summary: down on greater slopes, the deposits could
eventually become even steeper because the
internal tidal energy decreases with increas-
ing seafloor gradient above the critical angle.
Other processes are at work in shaping con-
tinental slopes, and at least one of these,
turbidity currents, also has the potential to be
an important cause for the relative flatness of
continental slopes (20).
References and Notes
1. L. F. Pratson, W. F. Haxby, Geology 24, 3 (1996).
2. D. O'Grady, J. Syvitski, L. F. Pratson, J. F. Sarg, Geology
28, 207 (2000).
3. O. M. Phillips, The Dynamics of the Upper Ocean
(Cambridge Univ. Press, London, 1977).
4. S. J. Prinsenberg, W. Wilmot, M. Rattray Jr., Deep-Sea
Res. 16, 179 (1974).
5. D. A. Cacchione, L. Pratson, A. Ogston, paper present-
ed at the Ocean Sciences Meeting of the American
Society of Limnology and Oceanography and the
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