South Fiji Basin
| South Fiji Basin | |
|---|---|
| Stratigraphic range: | |
The South Fiji Basin is surrounded to the north and east by more geologically active Pacific Ocean seafloor features. The Zealandia continental margin is shown in black. | |
| Type | Igneous |
| Area | 800,000 km2 (310,000 sq mi) |
| Lithology | |
| Primary | mafic basalts |
| Other | Sediments including ashy biogenic sediments |
| Location | |
| Coordinates | 26°00′S 176°00′W / 26.0°S 176.0°W |
| Region | South Pacific |
| Country | Fiji |
| Type section | |
| Named for | Fiji |
The South Fiji Basin ( also Fiji Basin ) is a large 4 to 4.7 km (2.5 to 2.9 mi) deep oceanic basin in the south-west Pacific Ocean, south of Fiji. It was formed from the then Indo-Australian plate and is delimited to the north west by the New Hebrides Trench, and the Hunter fracture zone, to the west by the Three Kings Ridge, to the east by the Lau-Colville Ridge, and to the south by the continental shelf of Zealandia.