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President Thiers Bank is a broad[2] guyot,[3] which lies northwest of Rapa[4] and 200 kilometres (120 mi) southeast of Raivavae,[5] in the Austral Islands.[4] Its summit reaches a depth of 33 metres (108 ft).[6] It may have been created by the Macdonald hotspot.[7] Another theory sees in the seamount the endpoint of an alignment that starts with Aitutaki[8] and also involves one volcanic phase at Raivavae.[5]

President Thiers Bank
Summit depth33 metres (108 ft)
Location
Coordinates24°40′S 145°55′W / 24.667°S 145.917°W / -24.667; -145.917[1]Coordinates: 24°40′S 145°55′W / 24.667°S 145.917°W / -24.667; -145.917[1]
Geology
TypeGuyot

ReferencesEdit

  1. ^ Adam, C.; Bonneville, A. (18 October 2008). "No thinning of the lithosphere beneath northern part of the Cook-Austral volcanic chains" (PDF). Journal of Geophysical Research. 113 (B10): 12. doi:10.1029/2007JB005313.
  2. ^ Menard, H. W.; McNutt, Marcia (1982). "Evidence for and consequences of thermal rejuvenation". Journal of Geophysical Research. 87 (B10): 8573. doi:10.1029/JB087iB10p08570.
  3. ^ Bonneville, Alain; Suavé, Raymond Le; Audin, Laurence; Clouard, Valérie; Dosso, Laure; Gillot, Pierre Yves; Janney, Philip; Jordahl, Kelsey; Maamaatuaiahutapu, Keitapu (1 November 2002). "Arago Seamount: The missing hotspot found in the Austral Islands". Geology. 30 (11): 1025. doi:10.1130/0091-7613(2002)030<1023:ASTMHF>2.0.CO;2. ISSN 0091-7613.
  4. ^ a b Maury et al. 2013, p. 559.
  5. ^ a b Maury et al. 2013, p. 565.
  6. ^ Fairbridge, Rhodes W.; Chevalier, J.-P. (1975). World Regional Geology. Springer, Berlin, Heidelberg. pp. 499–500. doi:10.1007/3-540-31081-1_111. ISBN 978-3-540-31081-5.
  7. ^ Johnson, Rockne H.; Malahoff, Alexander (10 May 1971). "Relation of Macdonald Volcano to migration of volcanism along the Austral Chain". Journal of Geophysical Research. 76 (14): 3289. doi:10.1029/JB076i014p03282.
  8. ^ Maury et al. 2013, p. 558.

SourcesEdit

  • Maury, R. C.; Guille, G.; Guillou, H.; Chauvel, C.; Rossi, P.; Pallares, C.; Legendre, C. (1 November 2013). "Temporal evolution of a Polynesian hotspot: New evidence from Raivavae (Austral islands, South Pacific ocean)". Bulletin de la Société Géologique de France. 184 (6): 557–567. doi:10.2113/gssgfbull.184.6.557. ISSN 0037-9409.