Open main menu

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.[1][2] 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.[3]

Like its neighbour, the Tasmantid Seamount Chain has resulted from the Indo-Australian Plate moving northward over a stationary hotspot.[4] It ranges in age from 40 to 6 million years old.[1] Alternative names for the Tasmantid Seamount Chain include the Tasmantid Seamounts, Tasman Seamounts, Tasman Seamount Chain and the Tasmantide Volcanoes.[5]



  1. ^ a b "Tasmantid Seamounts of Australia". Retrieved 2017-02-20.
  2. ^ Richards, F. D.; Kalnins, L. M.; Watts, A. B.; Cohen, B. E.; Beaman, R. J. (October 2018). "The Morphology of the Tasmantid Seamounts: Interactions Between Tectonic Inheritance and Magmatic Evolution" (PDF). Geochemistry, Geophysics, Geosystems. 19 (10): 3870–3891. doi:10.1029/2018GC007821.
  3. ^ Van Der Linden, Willem J. M. (1970). "Morphology of the Tasman sea floor". New Zealand Journal of Geology and Geophysics. 13: 282–291. doi:10.1080/00288306.1970.10428218.
  4. ^ W. J. Morgan and J. P. Morgan. Plate velocities in hotspot reference frame: electronic supplement.
  5. ^ "Marine Gazetteer Placedetails". Retrieved 2017-02-20.

Coordinates: 31°00′S 156°00′E / 31.000°S 156.000°E / -31.000; 156.000