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Tomographic imaging of multiple mantle plumes in the uppermost lower mantle

Rhodes, Mark and Davies, John Huw ORCID: 2001. Tomographic imaging of multiple mantle plumes in the uppermost lower mantle. Geophysical Journal International 147 (1) , pp. 88-92. 10.1046/j.0956-540x.2001.01512.x

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A high-resolution global tomographic inversion of P-wave traveltimes has been undertaken utilizing an a priori model. The results image cylindrical slow velocities in the upper and lower mantle beneath many current hotspot locations. Locations at which such plume-like features are imaged passing from the uppermost lower mantle to the upper mantle include, Afar, Society Islands, Crozet, Kerguelen, Iceland, Hawaii, East Africa, Cape Verde and the Canary Islands. The validity of these images has been investigated with synthetic recovery tests. These images suggest that these plumes could be from the lower mantle and therefore are not hindered in crossing the upper/lower mantle boundary.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Environmental Sciences
Subjects: Q Science > QE Geology
Uncontrolled Keywords: hotspots; mantle; mantle convection; plumes; seismic structure; tomography
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 19/02/2014).
Publisher: Royal Astronomical Society
ISSN: 0956-540X
Date of First Compliant Deposit: 30 March 2016
Last Modified: 15 May 2023 17:30

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