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Solid Earth An interactive open-access journal of the European Geosciences Union

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doi:10.5194/se-2017-17
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
22 Mar 2017
Review status
A revision of this discussion paper is under review for the journal Solid Earth (SE).
Mantle roots of the Emeishan plume: an evaluation based on telesismic P-wave tomography
Chuansong He1 and M. Santosh2,3 1Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
2Centre for Tectonics, Resources and Exploration, Department of Earth Sciences, University of Adelaide, SA 5005, Australia
3School of Earth Sciences and Resources, China University of Geosciences Beijing, 29 Xueyuan Road, Beijing 1000 83, China
Abstract. The voluminous magmatism associated with Large Igneous Provinces (LIP) is commonly correlated to upwelling plumes from the Mantle Transition Zone or 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 material in the cental part of the study area, and upwelling mantle in the southern part. Our results do not provide any conclusive evidence for upwelling mantle plume rooted in the CMB beneath the Emeishan LIP. We therefore suggest that the magmatism and the Emeishan LIP formation might be connected with the melting of delaminated lower crustal and (or) lithospheric components and associated plume-like upwelling from the mantle transition zone.

Citation: He, C. and Santosh, M.: Mantle roots of the Emeishan plume: an evaluation based on telesismic P-wave tomography, Solid Earth Discuss., doi:10.5194/se-2017-17, in review, 2017.
Chuansong He and M. Santosh
Chuansong He and M. Santosh
Chuansong He and M. Santosh

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Short summary
Our work demonstrated the Emeishan LIP induced by the crustal and (or) lithospheric delamination rather than the upwelling mantle plume.
Our work demonstrated the Emeishan LIP induced by the crustal and (or) lithospheric...
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