Geographic location
Antarctic
18
The Antarctic
16
Drake Passage
15
Shackleton
5
Shackleton Fracture Zone
5
Yaghan Basin
5
Ona Basin
4
Southern Ocean
3
Argentine
2
Barré
2
Pacific
2
Antarctic Peninsula
1
Arctic
1
Argentine Abyssal Plain
1
Austral
1
Bransfield Strait
1
Deception Island
1
Eltanin Fracture Zone
1
Estrecho
1
Estrecho Bransfield
1
Malvinas Escarpment
1
North Scotia Ridge
1
Orca Seamount
1
Udintsev Fracture Zone
1
Weddell
1
Weddell Sea
1
West Scotia Ridge
1