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Tasmantid Seamount Chain
Location Coral and Tasman seas
Coordinates 31°00′S 156°00′E / 31.000°S 156.000°E / -31.000; 156.000Coordinates: 31°00′S 156°00′E / 31.000°S 156.000°E / -31.000; 156.000
Type Seamount chain

The Tasmantid Seamount Chain is a 2,000 km (1,200 mi) long chain of seamounts in the South Pacific Ocean. The chain consists of over 16 extinct volcanic peaks, many rising more than 4,000 m (13,000 ft) from the seabed. It is one of the two parallel seamount chains alongside the East Coast of Australia; the Lord Howe and Tasmantid seamount chains both run north-south through parts of the Coral Sea and Tasman Sea. These chains have longitudes of approximately 159°E and 156°E respectively.

Like its neighbour, the Tasmantid Seamount Chain has resulted from the Indo-Australian Plate moving northward over a stationary hotspot. It ranges in age from 40 to 6 million years old. Alternative names for the Tasmantid Seamount Chain include the Tasmantid Seamounts, Tasman Seamounts, Tasman Seamount Chain, Tasmantide Volcanoes or simply the Tasmantids.


The Tasmantid Seamount Chain includes the following:

  • Barcoo Bank
  • Brisbane Guyot
  • Britannia Guyots
  • Cato Reef
  • Derwent Hunter Guyot
  • Fraser Seamount
  • Gascoyne Seamount
  • Kenn Reef
  • Moreton Seamount
  • Queensland Guyot
  • Recorder Guyot
  • Stradbroke Seamount
  • Taupo Bank
  • Wreck Reefs
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