Bermuda hotspot

Coordinates: 32°31′02″N 65°00′57″W / 32.5173°N 65.0158°W / 32.5173; -65.0158
Source: Wikipedia, the free encyclopedia.

The Bermuda hotspot is a supposed midplate

Mississippi Embayment[2][3][4] and the Sabine Uplift southwest of the Mississippi Embayment.[5]

A 2002 paper proposes that the Bermuda hotspot generated the Mississippi Embayment in the

North American plate motion moved the valley away from the hotspot, the resulting thinned lithosphere subsided, forming a trough. The seismic zones centered on New Madrid, Missouri, and Charleston, South Carolina, and the volcanic kimberlite pipes in Arkansas are cited as evidence.[4]

Other published reports

Tethys Sea, though noting that shallow processes may not explain the source of the magmatism. A more recent paper[7] finds a thinning in the mantle transition zone under Bermuda, apparently consistent with mantle upwelling and a hot lower mantle below Bermuda. A still more recent paper,[8] based on geochemical analysis of a drill core, suggests that Bermuda volcanism sampled a transient mantle reservoir in the mantle transition zone that was formed by chemical recycling related to subduction during the formation of Pangaea
.

See also

References

  1. ISBN 9780444516442
    .
  2. PMID 17186836
    .
  3. doi:10.1016/S0013-7952(97)00003-3
    .
  4. ^
    doi:10.1016/S0264-3707(02)00019-4
    .
  5. doi:10.1029/TC009i002p00341
    .
  6. ^ a b Vogt, Peter R.; Woo-Yeol Jung (2007). Origin of the Bermuda volcanoes and the Bermuda Rise: History, observations, models, and puzzles (PDF). Vol. 430. pp. 553–591.
    ISBN 978-0-8137-2430-0. Retrieved 12 August 2008. {{cite book}}: |journal= ignored (help
    )
  7. ^ a b Benoit, Margaret H.; Maureen D. Long; Scott D. King (2013). "Anomalously thin transition zone and apparently isotropic upper mantle beneath Bermuda: Evidence for upwelling". Geochemistry, Geophysics, Geosystems. 14 (10): 4282.
    doi:10.1002/ggge.20277
    .
  8. ^ Mazza, Sarah E.; Esteban Gazel; Michael Bizimis; Robert Moucha; Paul Béguelin; Elizabeth A. Johnson; Ryan McAleer; Alexander V. Sobolev (2019). "Sampling the volatile-rich transition zone beneath Bermuda". Nature. 569 (7756): 398–403.
    S2CID 155103393
    .

32°31′02″N 65°00′57″W / 32.5173°N 65.0158°W / 32.5173; -65.0158


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