Columbia subject headings:
Bathymetric maps.
Maps.
North Atlantic Ocean--Maps.
Plate tectonics--North Atlantic Ocean--Maps.
Harvard subject headings:
North Atlantic Ocean--Maps.
Plate tectonics--North Atlantic Ocean--Maps.
Princeton subject headings:
Atlantic Ocean--Maps.
Bathymetric maps.
Drilling and boring.
Earthquakes.
Maps.
Plate tectonics.