At its outer edge, which may be only a few miles from the shore or may lie a couple of hundred miles out or more, such a pediment (or continental shelf) drops steeply to the ocean basin proper.
Kubunzulu bomphandle wayo, engaba zimayile ezimbalwa kububanzi okanye ingalaal imayile ezininzi ezilikhulu ngaphandle okanye ngaphezulu.