South Fiji Basin

South Fiji Basin
Stratigraphic range: 33–15 Ma[1][2] PreꞒ Ꞓ O S D C P T J K Pg N
Fiji Vanuatu   Lau Basin New Hebrides   Trench   Hunter Fracture     Zone     Lau   Ridge South   Fiji Basin Tonga Trench Kermadec Trench Minerva Abyssal   Plain    Kupe Abyssal   Plain  Tonga-  Kerm-   adec Ridge    Cook fracture   zone Colville   Ridge Hikurangi Trough Three Kings Ridge New Zealand . 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)[3]
Lithology
Primary	mafic basalts
Other	Sediments including ashy biogenic sediments[4]
Location
Coordinates	26°00′S 176°00′W / 26.0°S 176.0°W / -26.0; -176.0[5]
Region	South Pacific
Country	Fiji
Type section
Named for	Fiji

The South Fiji Basin ( also Fiji Basin^[5] ) is a large 4 to 4.7 km (2.5 to 2.9 mi) deep^[3] 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.