James M. Robb John C. Behrendt John Schlee 1973 <p>A bathymetric map based on new data allows examination&nbsp;of geomorphic features on the narrow continental margin off Liberia.&nbsp;The continental shelf in this region is relatively flat and featureless. The&nbsp;northwestern part of the continental slope, off Monrovia and Cape&nbsp;Mount, shows complex slump features and two submarine valleys. The&nbsp;central part of the slope is smoother, apparently as a result of&nbsp;progradation. The southeastern part of the slope, near Cape Palmas, is&nbsp;crossed oblique to the shoreline by a structural valley that has been&nbsp;modified by large slumps or landslides. This valley may be the&nbsp;termination, at the continental margin, of an oceanic fracture zone. The&nbsp;major slumplike features of the Liberian continental margin appear to&nbsp;be surface manifestations of deep faulting which has been partially&nbsp;masked by sedimentation.</p> application/pdf en U.S. Geological Survey Bathymetry of the continental margin off Liberia, West Africa article