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Plume-slab interaction: The Samoa-Tonga system

Druken, K A; Kincaid, Christopher; Griffiths, Ross; Stegman, D R; Hart, S.R.


Mantle plume behavior near subducting plates is still poorly understood and in fact varies significantly from the classical hotspot model. We investigate using 3D laboratory models how subduction-driven flow relates to the deformation and dispersal of a nearby plume. Results show slab-driven flow severely distorts plume-driven flow, entraining and passively advecting plume material despite its thermal buoyancy. Downdip sinking of the slab initially stalls vertical plume ascent while the...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Physics of the Earth and Planetary Interiors
DOI: 10.1016/j.pepi.2014.03.003


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