Hunter Ridge

Hunter Ridge
Stratigraphic range: 7–0 Ma
TypeIgneous
Lithology
OtherUnderlying diverse subduction and other rocks
Location
Coordinates21°30′S 174°30′W / 21.5°S 174.5°W / -21.5; -174.5[1]
RegionSouth Pacific
CountryVanuatu
Type section
Named forHunter Island
Map
Approximate surface projection on Pacific Ocean of the Hunter Ridge   (brown).

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]

  1. ^ a b "Marine Gazetteer:Hunter Ridge". Retrieved 16 October 2023.
  2. ^ Durance et al. 2012, p. 929.
  3. ^ Patriat et al. 2019, The Matthew and Hunter area: a recently discovered infant subduction zone.