Bermuda Rise, 74-77 Bermuda Apron, 75, 77, 81 Bermuda Pedestal, 75, 77 Bermuda Plateau, 75, 81 Bermuda Scarp Zone, 76, 79 Crescent Peaks, 75 crustal structure, 80, 81, 102 Muir Seamount Group, 76 PDR records of, 79 sediments on, 76 Bermuda Scarp Zone, 76, 79 Bioclastic debris, 59 Biscay Abyssal Plain, 39, 56, 57, 60, 65 Blake-Bahama Abyssal Plain, 32, 33, 34, 56, 57, 58, 59 Blake-Bahama Basin, 33, 34 abyssal plain in, 59 sediments in, 59 Blake Escarpment, 17, 19, 47 benches on, 32, 47 outcrops on, 47 PDR record of, 34 seismic investigations, 47, 48 Blake Plateau, 17, 32, 47, 48, 59 description of, 32-33 PDR record of, 35, 38 Browns Bank, 24 Cable failures, submarine, 23, 67 Cable ships, 79 Campeche Escarpment, 33 Canary Abyssal Plain, 56 Cape Breton Submarine Canyon, 37 Cape Hatteras, 25, 46, 47, 48, 50 bottom currents, 50 Esso No. 1 Test, 46 geologic section at, 46, 48 Cape Verde Abyssal Plain, 57, 61 Cape Verde Basin, 12 Carte Générale Bathymétrique des Océans, 5, 11, 12 CARYN, Research Vessel, vii, 78 Caryn Seamount, 28, 72, 78 Cayman Trench (Abyssal) Plain, 56, 60 Classification of deep-sea relief bathymetric system, 11, 12, 19 textural system, 11 Coast and Geodetic Survey, viii, 25, 43, 44, 45,48 Columbia University, vii, 3, 6, 8, 21 Compaction of sediments, 50, 106 Continent and ocean, 16, 107 Continental margin benches and terraces, 38, 41-51, 107 categories of, 15, 17 definition, 17 magnetic anomalies, 51 past, present, and future, 53 photographs of, 39, 50 regional description of, 21-41 seismicity of, 51 Continental margin, development of, 53 youth, maturity, and old age, 53 geosynclines, 53, 54 Continental margin Europe and Africa, description of, 36-41 Anglo-French sector, 37 Gibraltar sector, 37-38 Iberian sector, 37-38 North African sector, 38-41 Continental margin North America, description of, 21-36 Anegada Passage, 36 Antilles Outer Ridge, 33 Bahamas sector, 33 Blake Escarpment, 33 Blake Plateau, 32 Flemish Cap, 21 Gulf of Maine, 24-25 Laurentian Channel, 23 Northeastern United States sector, 25 Northern Grand Banks sector, 21 Puerto Rico sector, 36 Scotian Shelf sector, 23 Southeast Newfoundland Ridge, 22 southern Grand Banks sector, 22 Continental margin, provinces category I, 1, 17, 53, 107 category II, 1, 18, 53, 107 category III, 1, 19, 53, 107 Continental rise, 1, 19, 20, 25, 26, 27, 37, 38, 40, 41 definition, 20 PDR records of, 32 tables of characteristics, 27, 41 Continental shelf, 15-28, 32-42, 107 definition, 18 structure of, 49, 51-54 submerged beaches, 42