Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle

Author:

Wei Songqiao Shawn1ORCID,Shearer Peter M.2ORCID,Lithgow-Bertelloni Carolina3,Stixrude Lars3,Tian Dongdong1ORCID

Affiliation:

1. Department of Earth and Environmental Sciences, Michigan State University, East Lansing, MI 48824, USA.

2. Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA.

3. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095, USA.

Abstract

Finding the Emperor's head Volcanic island and seamount chains form from deep-seated plumes of hot material upwelling through the mantle. The most famous of these is the Hawaiian-Emperor seamount chain. However, a large volcanic structure associated with a plume head that should precede the chain has long been missing. Wei et al. finally identified the likely location of this structure in the mantle under eastern Russia. The structure was likely subducted 20 million to 30 million years ago, and the location helps constrain several geodynamic processes. Science , this issue p. 983

Funder

National Science Foundation

Michigan State University Geological Sciences Endowment

Louis B. and Martha B. Slichter Endowment for Geosciences

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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