Correspondence: Reply to 'Numerical modelling of the PERM anomaly and the Emeishan large igneous province'

Creators: Flament, N.; Williams, S.; Müller, R. D.; Gurnis, M.; Bower, D. J.

Abstract

Tectonic plates and plate boundaries migrate substantially through time and mantle plumes are generally accepted to be mobile within the convecting mantle, but it has been proposed that large low shear velocity provinces (LLSVPs) could have been fixed and rigid for as much as 540 million years (Myr). The hypotheses of fixed and rigid LLSVPs cannot be easily tested in the absence of constraints on the past location of lowermost mantle structures. We evaluated the hypothesis9of lower mantle thermochemical structure fixity with numerical experiments. As in earlier studies, we argue that the location of lower mantle thermochemical structures has changed through time.

Additional Information

© 2017 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received: 5 March 2017; Accepted: 2 June 2017; Published online: 10 October 2017. Contributions: All authors contributed equally to the manuscript. Competing interests: The authors declare no competing financial interests.

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