SUBJECT INDEX

Abyssal floor, [1], [15], [55]
abyssal gaps, [1], [15], [66]
abyssal hills, [1], [15], [55], [61]
abyssal plains, [1], [15], [55]
mid-ocean canyons, [1], [15], [66]
Abyssal-floor topography, origin of, [74]
Abyssal gaps
definition, [66]
general, [1], [66]
Theta Gap, [66], [72], [73], [74]
Vema Gap 58, [66], [72], [74]
Abyssal hills, [1], [61]
definition, [61]
distribution of, [61], [63]
origin of, [65]
PDR records of, [38]
sub-bottom echos, [105]
Abyssal plains
Balearic Abyssal Plain, [57]
Bay of Bengal, abyssal plain in, [55]
Biscay Abyssal Plain, [56], [57], [60]
Blake-Bahama Abyssal Plain, [56], [57], [58], [59]
Canary Abyssal Plain, [56], [61]
Cape Verde Abyssal Plain, [57], [61]
Cayman (Trench) Abyssal Plain, [56], [60]
definition, [61]
discovery of, [55]
distribution of, [61], [63]
general, [1], [15], [53]
Hatteras Abyssal Plain, [56], [57], [58]
Hispaniola-Caicos Abyssal Plain, [60], [65]
Horseshoe Abyssal Plain, [57], [61]
Iberia Abyssal Plain, [56], [57], [61]
Madeira Abyssal Plain, [56], [61]
Nares Abyssal Plain, [56], [57], [59]
Newfoundland Abyssal Plain, [56]
nomenclature, [55]
Old Bahama Abyssal Plain, [60]
Puerto Rico (Trench) Abyssal Plain, [56], [60]
Sohm Abyssal Plain, [55], [57], [71], [72], [74]
Tagus Abyssal Plain, [56], [57]
Weddell Sea, abyssal plain in, [55]
African rift valleys, [103], [107]
Albatross III, Research Vessel, [vii]
Ampere Seamount, [59], [78]
Andros well, [47], [48]
Anegada Passage, [36]
Antilles Outer Ridge, [32], [33], [36], [52], [53], [59], [60]
Army Map Service, [5]
Atlantis-Plato-Great Meteor Seamount Group, [98]
Atlantis Research Vessel, [vii], [7], [8], [79]
Atlantis Seamount, [98]
Axis of maximum depth, North Atlantic Ocean, [41], [63], [96]
Azores Plateau, [97]
Azores-Gibraltar Ridge, [98]
Bahamas, [33]-36, [47]
Banquereau Bank, [24]
Basalt, [75], [79], [99]
"Basins and deeps", [11]
Basins
Cape Verde, [12]
Guiana, [12]
Iberia, [12]
Labrador, [12]
Nares, [56]
Newfoundland, [12], [56]
North America, [12]
North Canary, [12]
South Canary, [12]
West Europe, [12]
Bay of Biscay, [17], [56], [60]
Tertiary outcrops, [49]
Beaches, ancient submerged, [41], [42]
Bell Telephone Laboratories, [vii]
Benches, [1]
Bahamas, [34], [35], [49]
Bay of Biscay, [49]
Blake Plateau, [33], [47]-49
Cape Hatteras, [46]-48
Georges Bank, [43], [46]
Gibraltar, [37], [38]
Puerto Rico, [36]
Bermuda Apron, [75], [77], [81]
Bermuda Pedestal, [75], [77]
Bermuda Plateau, [75], [81]
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]
Continental slope, [1], [15]-48, [107]
benches on, [41], [42]-51
currents on, [50]
definition, [18]
geologic map of, [51]
photographs of, [39]
profiles of, [28], [29]
Convection currents, [103]
Coral, photograph of, [39]
Corner Rise, [63], [64], [77]
Corner Seamount, [77]
Cretaceous outcrops
Bahamas, [47]
Blake Escarpment, [47]
Caryn Seamount, [78]
Georges Bank, [43]
Cruiser Seamount, [98]
Crustal convection currents, [103]
Crustal structure
continental margin, [52], [53], [102], [107]
Mid-Atlantic Ridge, [100], [102], [107]
ocean-basin floor, [80], [81], [102], [107]
trans-Atlantic structure section, [102]
Currents, deep-sea bottom
photographed evidence of, [39], [59], [79]
scour, [50], [51], [59], [79]
velocities of, [50]
Deeps
Nares, [55]
Sohm, [55]
Deep-sea channels, [66]
Deep-sea sands, [28], [35], [36], [53], [58], [59], [60], [61], [65], [74], [75], [80], [99], [106], [107]
Diabase, [99]
Discovery II, Royal Research Ship, [vii]
Easter Island Ridge, [103]
Echo sounders
early sounding machines, [8]
invention of, [8]
Lamont-Facsimile PDR, [8], [9]
NMC, [7], [8], [22], [23], [24], [31], [68]
UQN-1B, [7], [8], [69]
Echo soundings
accuracy of, [3], [9]
sources of, [3], [5], [6], [7]
units employed, [12]
"Echo-time" depth, nominal fathoms, [12]
Emerald Bank, [24]
Eocene outcrops, [46], [47], [48], [76]
Epicontinental seas, [1], [15], [18]
Erosion, submarine, [23], [39], [50], [51], [74], [79], [80], [99], [105], [106], [107]
Esso Hatteras Light Test, [43], [46], [47]
Eugeosyncline, [54]
Exaggerated profiles, plotting of, [5]
Exuma Sound, [35], [49]
Faulting, [42], [51], [76], [103], [107]
Fecal pellets, photographs of, [39], [79]
Flemish Cap, [21]
Foraminifera, displaced, [60]
French Hydrographic Service, [38]
Georges Bank, [25], [43]-45
Georges Bank canyons
dredging, [44]-45
identification of benches, [44]
outcrops on, [43]-44
Geosynclines, [53]-54, [107]
Gibraltar, Straits of, [38]
Glacier, U.S.S., [55]
Globigerina ooze, [33], [53], [106]
Gradients, conversion tables, [12], [15]
Gran Canary Island, profile near, [39]
Grand Banks earthquake, [22]
Grand Banks sector, [21]
Gravel, [59], [79]
Gravity anomalies, [2], [65], [100]
Graywacke suite, [53]
Great Meteor Bank, [98]
Guiana Basin, [12]
Gulf of Maine, [17], [24], [25]
sub-bottom echoes, [105]
Gulf of Mexico escarpments, [18], [33]
Gulf of St. Lawrence, [17]
"Gully," the, [24]
Guyots, [78]
Halimeda, [60]
Hatteras Abyssal Plain, [56], [57], [58]
Heat flow, measurement of, [103]
High Fractured Plateau, [1], [15], [90], [91], [94], [95], [99]
Hispaniola-Caicos Abyssal Plain, [56], [60]
Hispaniola-Caicos Channel, [36]
Holothurians, photographs of, [39]
Horseshoe Abyssal Plain, [57], [61]
Horseshoe Seamount Group, [59], [78]
Hudson Submarine Canyon, [8], [27]-28, [31], [58], [72]
Hudson Submarine Channel, [8]
Hudson Submarine Delta, [28], [78]
Hydrographic Department, British Admiralty, [vii], [3], [6]
Hydrographer Canyon, [43]
Iberia Abyssal Plain, [56], [60]
Iberia Basin, [12]
Intermontane basins, [95], [99]
International Hydrographic Bureau (Monaco), [vii], [3], [5], [11], [12]
Josephine Seamount, [78]
Kevin Moran, Tug, [70]
Kelvin Seamount Group, [72], [77], [78]
Labrador Basin, [12]
Lahave Bank, [24]
Lamont Geological Observatory, [3], [6], [8], [21]
Landward slopes of trenches, [1], [19], [36]
Laurentian Channel, [23]
Lisbon Submarine Canyon, [37]
Lower Continental Rise Hills, [56]
Lower Step, Mid-Atlantic Ridge, [1], [15], [90], [91], [94], [95], [96]
Madeira Abyssal Plain, [56], [58], [61]
Madeira Island, profile near, [28], [29]
Madeira Rise, [58], [61]
Magnetic anomalies
continental margin, [51], [52]
Mid-Atlantic Ridge, [51], [100], [101]
ocean-basin floor, [51], [65], [72]
seamounts, [51]
Magnetic surveys
airborne, [51]
ship-towed, [51]
Manganese nodules, [39], [78]
Mantle, [80], [102]
Marginal basin-outer ridge complex, [20], [36]
Marginal escarpments
Bay of Biscay, [19], [37]
Blake, [19], [32], [35]
Gulf of Mexico, [19], [33]
New Zealand, [19]
Marginal plateaus, [18], [32], [37]
Blake Plateau, [17], [32], [47], [48], [59]
Western Europe, [37]
Marginal trenches, [20], [36], [53], [107]
filled, [52]-54
Pacific, [19], [60]
Puerto Rico Trench, [17], [36], [52], [56], [60]
Marginal trench-outer ridge complex, [1], [20], [36], [53]
Matawan (Cretaceous) formation, [44], [45], [46]
Mercator projection, [3]
Meteor, Research Vessel, [83], [98]
Mid-Atlantic Ridge
axial profile, [96]
crest provinces, [1], [84]
flank provinces, [1], [95]
heat flow, [103]
High Fractured Plateau, [1], [90], [94], [95]
limits of, [83]
Lower Step, [1], [90], [94], [95]
Middle Step, [1], [90], [94], [95]
ocean-bottom photographs, [78], [99]
origin of, [103]
rocks of, [99]
Rift Mountains, [1], [90], [92], [94]
Rift Valley, [1], [84], [90], [91], [92], [93], [94]
sediments on, [99]
seismicity of, [98], [99]
structure of, [81], [100], [102], [107]
trilobites from, [99]
type profile, [90]
Upper Step, [1], [90], [94], [95]
Mid-Atlantic Ridge Expeditions (1947-48), [99]
Middle Step, [1], [15], [94], [95], [96]
Mid-ocean canyons
Bay of Bengal, [66]
Bay of Biscay, [60]
deep-sea channels, [66]
definition, [66]
distribution of, [66]-72
equatorial Atlantic, [66]
Gulf of Alaska, [66]
Mid-Ocean Canyon No. 2., [71]-72
Northwest Atlantic Mid-Ocean Canyon, [22], [66]-72
Mid-Oceanic Ridge, [1], [15], [83]-104, [107]
crest provinces, [1], [15], [83]
definition, [83]
flank provinces, [1], [15], [95]
Milne Seamount, [79]
Morpho-tectonic provinces, [2]
Muir, U.S.S., [76]
Nares Abyssal Plain, [56], [57], [59], [74], [81]
National Geographic Society, [vii], [99]
Navarro (Cretaceous) formation, [44], [45], [46]
Navidad Bank, [34], [36]
Navigational control, accuracy of, [5]
Nazaré Submarine Canyon, [37]
Newfoundland Abyssal Plain, [56], [58]
Newfoundland Basin, [12], [56], [67], [68], [69], [70], [71]
Nomenclature of deep-sea relief 11, [12], [15]
North America Basin, [12]
North Atlantic Ocean
major basins of, [12]
map of earthquakes in, facing page, [122]
map of sediment distribution, facing page, [122]
soundings, [5]
structure section, [102]
North Canary Basin, [12]
Northeast Providence Channel, [35], [36]
Northwest Atlantic Mid-Ocean Canyon, [22], [67], [68], [69], [70], [71]
Ocean-basin floor, [1], [15], [25], [55]-82, [102], [107]
abyssal floor, [1], [15], [55]-74
crustal structure, [80]-81, [102]
oceanic rises, [1], [15], [55], [74]-78
seamounts of, [78]-79
seismicity of, [80]
Oceanic crust, [80]-81, [100], [102]
Oceanic rises
Bermuda Rise, [74]-77
Corner Rise, [64], [77]
definition, [74]
distribution, [74]
Rio Grande Rise, [74]
Rockall Rise, [78]
Oceanographer Canyon, [43]
Old Bahama Channel, [36]
Olivine gabbro, [99]
Orthogeosyncline, [54]
Orthoquartzite, [53]
Outer ridges
Antilles Outer Ridge, [32], [33], [36], [52], [53], [59], [60]
definition, [20]
sediments on, [53]
Southeast Newfoundland Ridge, [22], [63], [67], [70], [71], [72]
Paleozoic outcrops, [99]
Pelagic deposits, [53], [81], [99], [107]
Photographs, sea floor, [39], [50], [59], [79]
Physiographic diagram, preparation of, [3], [4], [5]
Physiographic province chart, Atlantic Ocean, [3], [16]
Plant debris, [60]
Plato Seamount, [98]
Pleistocene beaches, submerged, [42]
Portuguese submarine canyons
Lisbon, [37]
Nazaré, [37]
Setúbal, [37]
Precision Depth Recorder (PDR)
accuracy of, [8]
development of, [8]
operation of, [9]
positions of PDR sounding tracks, [6]
Precision Depth Recorder (PDR) records, [28], [32], [34], [36], [38], [58], [64], [73], [78], [91], [92]
Puerto Rico Trench, [36]
Puerto Rico (Trench) Abyssal Plain, [17], [36], [52], [56], [60]
Recent sediments, erosion of, [50]
Red clay, [33], [76], [106]
Reflections, sub-bottom, [25], [32], [41], [105]-106
Research vessels
Albatross III, [vii]
Atlantis, [vii], [7], [8], [79]
Caryn, [vii], [78]
Discovery II, [vii]
Kevin Moran, [70]
Meteor, [83], [98]
Talisman, [99]
Theta, [vii], [2], [7]
Vema, [vii], [6], [72]
Rift Mountains, [1], [15], [84], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99], [100], [107]
Rift Valley, [1], [15], [84], [90], [91], [93], [94], [95], [96], [98], [99], [100], [101], [102], [103], [107]
Rio Grande Rise, [74]
Ripple Marks, [39], [50], [51], [59], [79]
Rock dredging, [39], [42], [43], [45], [46], [47], [76]
Rockall Rise, [78]
Sable Island, [24]
Sable Island Bank, [24]
Sand, deep-sea, [28], [60], [61], [74]
Scarps, [61]
Abyssal Plain, [61]
Bermuda Rise, [76]
Mid-Atlantic Ridge, [83]
Scotian Shelf, [23], [24]
Scour marks, photographs of, [39], [59]
Seamounts
Ampere, [78]
Atlantis, [98]
Caryn, [78]
Cruiser, [98]
Great Meteor, [98]
Josephine, [78]
Kelvin, [77], [78]
Milne, [79]
Muir, [76]
Plato, [98]
Seamount Groups
Atlantis-Plato-Cruiser-Great Meteor Seamount Group, [98]
Horseshoe Seamount Group, [59], [78]
Kelvin Seamount Group, [76], [77], [78]
Muir Seamount Group, [76]
Seamounts, sedimentary processes on, [59], [77]
Sediment distribution
abyssal plain, [74]
Bermuda Rise, [76]
continental margin, [53]
correlation with topography, [107]
map of North Atlantic, facing page, [122]
Mid-Atlantic Ridge, [99]
Seismicity
continental margin, [51]
epicenter map, North Atlantic, facing page, [122]
Mid-Atlantic Ridge, [98]
ocean-basin floor, [80]
Seismic-reflection measurements, [80]
Seismic-refraction measurements
continental margin, [52], [81], [102]
Mid-Atlantic Ridge, [81], [100], [102]
ocean-basin floor, [65], [80], [81], [102]
Serpentine, [99]
Serpentization, [103]
Setúbal Submarine Canyon, [37]
Sharks tooth, photograph of, facing page, [39]
Shelf break, [17], [50], [51]
Sierra Leone Rise, [61]
Slumping, [50], [51], [99], [105]
Sohm Abyssal Plain, [55], [56], [57], [71], [72], [74]
Sound velocity corrections, [12], [13]
Sounding corrections
slope, [15]
velocity, [12], [13]
Sounding tracks
nonprecision, [7]
PDR, [6]
Sounding velocity, [12]
Soundings
echo, [8], [9]
hemp line, [8]
wire, [8]
South Atlantic, Physiographic Diagram, [v]
South Canary Basin, [12]
Southeast Newfoundland Ridge, [22], [63], [67], [70], [71], [72]
Sub-bottom echoes, [25], [32], [41], [105]-106
Submarine canyons, [20]
Cape Breton, [37]
Fosse de Cayar, [41]
Gilbert, [44]
Grand Banks, near, [23]
Hudson, [8], [27], [28], [30], [31], [58], [72]
Hydrographer, [45], [46]
Lisbon, [37]
Lydonia, [44]
Nazaré, [37]
Northeast Providence, [35]
Oceanographer, [44], [45], [46]
Setúbal, [37]
Starfish, photograph of, facing page, [39]
Structural benches, [43], [48], [49]
Submarine topography, outline of, [15]
Sunken islands, [78]
Tagus Abyssal Plain, [56], [57], [61]
Talisman, Research Vessel, [99]
Tectonic map, Atlantic Ocean, [2]
Tectonic uplift, [77], [78], [98]
"Terraced zone", [95]
Terraces, continental shelf, [42]
Tertiary ocean-bottom temperatures, [106]
Tertiary outcrops, [46], [47], [48], [76], [79], [107]
Theta, M/V, (sealer), [vii], [72]
Theta Gap, [66], [72], [73], [74]
Times Facsimile Company
Precision Depth Recorder, [8], [9]
Tracks and trails, photographs of, facing pages, [39], [79]
Trench (Abyssal) Plains
Cayman, [56], [60]
Kurile-Kamchatka, [60]
Middle America, [60]
Peru-Chile, [60]
Puerto Rico, [17], [36], [52], [56], [60]
Trilobites, Mid-Atlantic Ridge, [99]
Turbidity currents, [23], [50], [51], [74], [79], [80], [99], [106], [107]
Unconformities, [50]
U. S. Coast Survey, [8]
U. S. Navy
Bureau of Ships, [vii]
Hydrographic Office, [5]
Office of Naval Research, [vii]
Units: depth, slope, distance, [12]
Upper Step, [15], [78], [90], [91], [94], [95], [96]
Vema Gap, [58], [60], [66], [72], [74]
Vema, Research Vessel, [vii], [6], [72]
Virgin Islands Bank, [36]
Volcanic cones, buried, [51]
Volcanic detritus, [53]
Volcanoes, [39], [77], [78]
West Europe Basin, [12]
West Florida Escarpment, [33]
Woods Hole Oceanographic Institution, [vii], [viii], [3], [7]
Yorktown (Miocene) formation, [44], [45], [46]