Hunter Ridge | |
---|---|
Stratigraphic range: | |
Type | Igneous |
Lithology | |
Other | Underlying diverse subduction and other rocks |
Location | |
Coordinates | 21°30′S 174°30′W / 21.5°S 174.5°W[1] |
Region | South Pacific |
Country | Vanuatu |
Type section | |
Named for | Hunter Island |
The Hunter Ridge (previously known as Hunter Island Ridge, Matthew Ridge),[1] is an active volcanic arc oceanic ridge located on the oceanic New Hebrides Plate in the south-west Pacific Ocean extending at least 550 km (340 mi). It defines the south-western limit of the North Fiji Basin (NFB) and is an area of unique range in volcanic geochemistry,[2] which transpires to have been due partially to a new, previously unrecognised, subduction zone.[3]