"OATES Bank","70 15'S - 165 15'E","5.14",""," "
"","","5.18","",""
"______________________","____________________","________","__________","____________________________"
"OATES Canyon","69 10'S - 164 30'E","5.14"," "," "
" ","","5.18"," ",""
"______________________","____________________","________","__________","____________________________"
"OB Canyon","64 30'S - 93 30'E","5.18"," "," "
"______________________","____________________","________","__________","____________________________"
"OB Seamount","52 30'S - 41 30'E","5.13"," ","* = Tablemount"
"______________________","____________________","________","__________","____________________________"
"OB Trench","32 50'S - 98 15'E","5.09"," ","* "
"______________________","____________________","________","__________","____________________________"
"OBRUCHEV Rise","50 30'N - 168 00'E","5.02","813","* "
"","to","","",""
"","54 00'N - 164 OO'E","","",""
"______________________","____________________","________","__________","____________________________"
"OCEANA Bank","8 30'N - 115 20'W","","51"," "
"______________________","____________________","________","__________","____________________________"
"OCEANOGRAPHER Canyon","40 00'N - 68 00'W","5.04"," ","* "
"______________________","____________________","________","__________","____________________________"
"OCEANOGRAPHER","36 00'N - 40 00'W","5.08"," ","* "
"Fracture Zone","to","","",""
"","34 20'N - 32 00'W","","",""
"______________________","____________________","________","__________","____________________________"
"ODESSEY Seamount","54 30'N - 149 45'W"," ","50-810"," "
"______________________","____________________","________","__________","____________________________"
"OGASAWARA Plateau","26 00'N - 144 00'E"," ","510","* "
"______________________","____________________","________","__________","____________________________"
"OGASAWARA Ridge","27 15'N - 142 30'E","5.06"," "," "
"______________________","____________________","________","__________","____________________________"
"OGASAWARA Trough","28 00'N - 141 20'E","5.06","510","*(March 1985)"
" "," "," ","","GEBCO-SCGN/6."
"______________________","____________________","________","__________","____________________________"
"OGLALA Seamount","50 18'N - 131 28'W"," ","50-801"," "
"______________________","____________________","________","__________","____________________________"
"O'GORMAN","14 30'N - 109 30'W","5.07"," ","GEBCO-SCGN/6:Formerly"
"Fracture Zone","to"," "," ","WEST and EAST O'GORMAN"
"","15 30'N - 98 30'W"," "," ","Fracture Zone"
"______________________","____________________","________","__________","____________________________"
"OJIN Guyot","38 00'N - 170 30'E","5.06"," ","* = Seamount"
"","","","","GEBCO-SCGN/6"
"______________________","____________________","________","__________","____________________________"
"OKEANOLOGII :"," "," "," "," "
"See INSTITUTA","","","",""
"OKEANOLOGII Rise","","","",""
"______________________","____________________","________","__________","____________________________"
"OKI-DAITO Ridge","23 45'N - 133 00'E","5.06","509","* "
"______________________","____________________","________","__________","____________________________"
"OKINAWA Trough","26 00'N - 125 40'E","5.06","509","* "
"______________________","____________________","________","__________","____________________________"
"OKI Ridge","36 50'N - 134 40'E"," ","511","* "
"______________________","____________________","________","__________","____________________________"
"OLIVOS Bank","36 32'N - 2 50'W"," ","301"," "
"______________________","____________________","________","__________","____________________________"
"OLYMPUS Knoll","45 25'N - 27 40'W"," ","11-14"," "
" "," ","","103",""
"______________________","____________________","________","__________","____________________________"
"OMAN Basin","23 30'N - 61 00'E","5.05","71-72-73","*= Plain"
" "," "," ",""," INT Charts = Basin"
"______________________","____________________","________","__________","____________________________"
"ONA Basin","59 15'S - 56 00'W","5.16"," ","*(June 1987)"
"______________________","____________________","________","__________","____________________________"
"O'NEILL Bank :"," "," "," "," "
"See ORNE (Banc de l')"," "," "," ",""
"______________________","____________________","________","__________","____________________________"
"ONE SOUTH"," "," "," ","GEBCO-SCGN/7"
"Fracture Zone :"," "," "," ",""
"See  ROMANCHE "," "," "," ",""
"Fracture Zone","","","",""
"______________________","____________________","________","__________","____________________________"
"ONTONG-JAVA Rise","2 00'N - 156 00'E","5.06","506 ","* KAPINGAMARANGI Rise"
" ","to "," ",""," GEBCO-SCGN/6 = formerly"
"","8 00'S - 162 30'E","","","SOLOMON Rise"
"______________________","____________________","________","__________","____________________________"
"ORANGE Canyon","31 50'S - 13 00'E","5.12"," ","*"
"______________________","____________________","________","__________","____________________________"
"ORANGE Cone","31 45'S - 11 30'E","5.12"," ","* = Fan."
"______________________","____________________","________","__________","____________________________"
"ORCADAS :"," "," "," "," "
"See  ISLAS ORCADAS "," "," "," ",""
"Fracture Zone,"," "," "," ",""
"ISLAS ORCADAS Rise"," "," "," ",""
"and ISLAS ORCADAS "," "," "," ",""
"Seamount","","","",""
"______________________","____________________","________","__________","____________________________"
"ORKNEY Deep","60 45'S - 40 00'W","5.16"," "," "
"______________________","____________________","________","__________","____________________________"
"ORMONDE Seamount","36 40'N - 11 10'W"," ","11-14","* "
" "," "," ","103-104",""
"______________________","____________________","________","__________","____________________________"
"ORNE (Banc de l')","22 30'S - 168 55'E"," ","602"," "
"or O'NEILL Bank "," "," "," ",""
"______________________","____________________","________","__________","____________________________"
"OROZCO Fracture Zone","15 30'N - 104 30'W","5.07","51-802","*"
"","","","811",""
"______________________","____________________","________","__________","____________________________"
"ORPHAN Knoll","50 3O'N - 46 30'W","5.04","11-405","*"
"______________________","____________________","________","__________","____________________________"
"ORTELIUS Fracture ","25 00'N - 162 45'E","5.06"," ","*(September 1984)"
"Zone "," "," ",""," GEBCO-SCGN/6."
"______________________","____________________","________","__________","____________________________"
"OSBORN Plateau","15 00'S - 87 00'E","5.09"," ","*"
"______________________","____________________","________","__________","____________________________"
"OSBOURN Seamount","26 00'S - 175 00'W","5.10","60-605","* = OZBOURN"
"______________________","____________________","________","__________","____________________________"
"OSHAWA Seamount","52 22'N - 134 05'W"," ","50-801","*"
"","","","810",""
"______________________","____________________","________","__________","____________________________"
"OSPREY Reef","14 00'S - 146 40'E","5.10"," "," "
"______________________","____________________","________","__________","____________________________"
"OST Bank","67 30'N - 30 00'W"," ","112"," "
"______________________","____________________","________","__________","____________________________"
"OUEST Fracture","56 10'S - 57 00'W","5.16"," ",""
"Zone ","56 50'S - 53 15'W "," "," ",""
"______________________","____________________","________","__________","____________________________"
"OUTER BAILEY Bank :",""," "," "," "
"See  LOUSY Bank "," "," "," ",""
"______________________","____________________","________","__________","____________________________"
"OWEN Bank ","6 47'S - 70 14'E"," ","70-71-72","*"
" "," ","","73-702","INT charts = Reported"
"","","","703","1811"
"______________________","____________________","________","__________","____________________________"
"OWEN Fracture Zone","5 00'N - 53 30'E","5.05","71-72","*"
"","to","","703",""
"","23 00'N - 62 45'E","","705",""
"______________________","____________________","________","__________","____________________________"
"OZIN Seamount","38 15'N - 171 00'E"," ","53",""
"______________________","____________________","________","__________","____________________________"