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Type: Journal article
Title: Mantle roots of the Emeishan plume: an evaluation based on teleseismic P-wave tomography
Author: He, C.
Santosh, M.
Citation: Solid Earth, 2017; 8(6):1141-1151
Publisher: Copernicus Publications
Issue Date: 2017
ISSN: 1869-9510
Statement of
Chuansong He and M. Santosh
Abstract: The voluminous magmatism associated with large igneous provinces (LIPs) is commonly correlated to up-welling plumes from the core–mantle boundary (CMB). Here we analyse seismic tomographic data from the Emeishan LIP in southwestern China. Our results reveal vestiges of delaminated crustal and/or lithospheric mantle, with an upwelling in the upper mantle beneath the Emeishan LIP rather than a plume rooted in the CMB. We suggest that the magmatism and the Emeishan LIP formation might be connected with the melting of delaminated lower crustal and/or lithospheric components which resulted in plume-like upwelling from the upper mantle or from the mantle transition zone.
Rights: © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License.
DOI: 10.5194/se-8-1141-2017
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Geology & Geophysics publications

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