Abbott Seamount 1970-01-01
Adare Seamounts 1970-01-01
Adare Trough 1970-01-01
Adas Bank 1970-01-01
Ajax Reef 1970-01-01
Alaska Plain 1970-01-01
Albert Bank 1970-01-01
Aleutian Current 1970-01-01
Aleutian Ridge 1970-01-01
American Scout Seamount 1970-01-01
Ampère Seamount 1970-01-01
Amundsen Plain 1970-01-01
Angola Current 1970-01-01
Angria Bank 1970-01-01
Antilles Current 1970-01-01
Antipodes Fracture Zone 1970-01-01
Argentine Abyssal Plain 1970-01-01
Argentine Basin 1970-01-01
Astoria Canyon 1970-01-01
Atlantic-Indian Basin 1970-01-01