List of seamounts in the Southern Ocean

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This is a list of Seamounts in the Southern Ocean. A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island, islet or Cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to 1,000–4,000 m (3,300–13,100 ft) in height. They are defined by oceanographers as independent features that rise to at least 1,000 m (3,281 ft) above the seafloor, characteristically of conical form. [1]

Contents

List

NameLocationDate namedName originCoordinates
Adare Seamounts Balleny Basin June 1988 70°0′S171°30′E / 70.000°S 171.500°E / -70.000; 171.500 [2]
Balleny Seamounts Balleny Islands June 1988 61°0′S161°30′E / 61.000°S 161.500°E / -61.000; 161.500 [3]
Barsukov Seamount June 1995Named for Russian scientist Valeri Barsukov 61°3′S29°12′W / 61.050°S 29.200°W / -61.050; -29.200 [4]
Belgica Guyot June 1997Named for the Belgian research ship Belgica 65°30′S90°30′W / 65.500°S 90.500°W / -65.500; -90.500 [5]
Dallmann Seamount June 1997Named for polar explorer Eduard Dallmann 67°10′S96°53′W / 67.167°S 96.883°W / -67.167; -96.883 [6]
De Gerlache Seamounts Named for Lieutenant Adrien Victor Joseph de Gerlache 65°0′S90°30′W / 65.000°S 90.500°W / -65.000; -90.500 [7]
Hakurei Seamount Adélie Land July 1999Named for the RV Hakurei-maru 62°52′S140°49′E / 62.867°S 140.817°E / -62.867; 140.817 [8]
Iselin Seamount February 1964Named for the research ship Iselin II 70°45′S178°15′W / 70.750°S 178.250°W / -70.750; -178.250 [9]
Kemp Caldera Scotia Sea-Weddell Sea 2009 59°42′S28°15′W / 59.700°S 28.250°W / -59.700; -28.250 [10]
Lecointe Guyot June 1997Named for explorer Georges Lecointe 65°6′S93°0′W / 65.100°S 93.000°W / -65.100; -93.000 [11]
Lichtner Seamount April 2000Named for German cartographer Werner Lichtner 67°33′S0°40′W / 67.550°S 0.667°W / -67.550; -0.667 [12]
Maud Seamount February 1964 65°0′S2°35′E / 65.000°S 2.583°E / -65.000; 2.583 [13]
Orca Seamount Bransfield Strait 1967Named for the orca whales that frequent the area 62°26′00″S58°24′00″W / 62.433334°S 58.400002°W / -62.433334; -58.400002 [14]
Rosenthal Seamount Weddell Sea Named for Alfred Rosenthal 68°38′S97°5′W / 68.633°S 97.083°W / -68.633; -97.083 [15]
Wordie Seamount Bransfield Strait Named for geologist James Wordie 61°48′S55°27′W / 61.800°S 55.450°W / -61.800; -55.450 [16]

See also

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<span class="mw-page-title-main">Limalok</span> Cretaceous-Paleocene guyot in the Marshall Islands

Limalok is a Cretaceous-Paleocene guyot/tablemount in the southeastern Marshall Islands, one of a number of seamounts in the Pacific Ocean. It was probably formed by a volcanic hotspot in present-day French Polynesia. Limalok lies southeast of Mili Atoll and Knox Atoll, which rise above sea level, and is joined to each of them through a volcanic ridge. It is located at a depth of 1,255 metres (4,117 ft) and has a summit platform with an area of 636 square kilometres (246 sq mi).

<span class="mw-page-title-main">Lo-En</span> Albian–Campanian guyot in the Marshall Islands in the Pacific Ocean

Lo-En or Hess is an Albian–Campanian guyot in the Marshall Islands. One among a number of seamounts in the Pacific Ocean, it was probably formed by a hotspot in what is present-day French Polynesia. Lo-En lies southeast of Eniwetok which rises above sea level, and Lo-En is almost connected to it through a ridge.

<span class="mw-page-title-main">Ioah Guyot</span> Seamount in the Pacific Ocean

Ioah Guyot is a seamount in the Pacific Ocean, close to the Marshall Islands. Part of the Magellan Seamounts, it is a shield volcano that has erupted alkali basalt and hawaiite 87 million years ago, but may have continued erupting into the Miocene. During the Cretaceous, reefs developed on the guyot.

<span class="mw-page-title-main">Horizon Guyot</span> Tablemount in the Pacific Ocean

Horizon Guyot is a presumably Cretaceous guyot (tablemount) in the Mid-Pacific Mountains, Pacific Ocean. It is an elongated ridge, over 300 kilometres (190 mi) long and 4.3 kilometres (2.7 mi) high, that stretches in a northeast-southwest direction and has two flat tops; it rises to a minimum depth of 1,443 metres (4,730 ft). The Mid-Pacific Mountains lie west of Hawaii and northeast of the Line Islands.

Allison Guyot is a tablemount (guyot) in the underwater Mid-Pacific Mountains of the Pacific Ocean. It is a trapezoidal flat mountain rising 1,500 metres (4,900 ft) above the seafloor to a depth of less than 1,500 metres (4,900 ft), with a summit platform 35 by 70 kilometres wide. The Mid-Pacific Mountains lie west of Hawaii and northeast of the Marshall Islands, but at the time of their formation were located in the Southern Hemisphere.

References

  1. ↑ IHO, 2008. Standardization of Undersea Feature Names: Guidelines Proposal form Terminology, 4th ed. International Hydrographic Organization and Intergovernmental Oceanographic Commission, Monaco.
  2. ↑ "Adare Seamounts". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  3. ↑ "Balleny Seamounts". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  4. ↑ "Barsukov Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  5. ↑ "Belgica Guyot". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  6. ↑ "Dallmann Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  7. ↑ "De Gerlache Seamounts". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  8. ↑ "Hakurei Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  9. ↑ "Iselin Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  10. ↑ Linse, Katrin; Copley, Jonathan T.; Connelly, Douglas P.; Larter, Robert D.; Pearce, David A.; Polunin, Nick V. C.; Rogers, Alex D.; Chen, Chong; Clarke, Andrew; Glover, Adrian G.; Graham, Alastair G. C.; Huvenne, Veerle A. I.; Marsh, Leigh; Reid, William D. K.; Roterman, C. Nicolai; Sweeting, Christopher J.; Zwirglmaier, Katrin; Tyler, Paul A. (2019). "Fauna of the Kemp Caldera and its upper bathyal hydrothermal vents (South Sandwich Arc, Antarctica)". Royal Society Open Science. 6 (11): 4. Bibcode:2019RSOS....691501L. doi: 10.1098/rsos.191501 . PMC   6894572 . PMID   31827872.
  11. ↑ "Lecointe Guyot". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  12. ↑ "Lichtner Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  13. ↑ "Maud Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  14. ↑ "Orca Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  15. ↑ "Rosenthal Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
  16. ↑ "Wordie Seamount". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 11 August 2018.
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