A subduction influence on ocean ridge basalts outside the Pacific subduction shield

A. Y. Yang; C. H. Langmuir; Y. Cai; P. Michael; S. L. Goldstein; Z. Chen

doi:10.1038/s41467-021-25027-2

Nature Communications (Aug 2021)

A subduction influence on ocean ridge basalts outside the Pacific subduction shield

A. Y. Yang,
C. H. Langmuir,
Y. Cai,
P. Michael,
S. L. Goldstein,
Z. Chen

Affiliations

A. Y. Yang: State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
C. H. Langmuir: State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
Y. Cai: Lamont-Doherty Earth Observatory, Columbia University
P. Michael: University of Tulsa
S. L. Goldstein: Lamont-Doherty Earth Observatory, Columbia University
Z. Chen: Department of Earth and Planetary Sciences, Harvard University

DOI: https://doi.org/10.1038/s41467-021-25027-2
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 10

Abstract

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We discover a pervasive subduction influence in the Arctic, Atlantic and Indian mantle, which is nearly absent in the Pacific mantle. Such a hemispheric-scale upper mantle heterogeneity reflects the control of a “subduction shield” that has surrounded the Pacific Ocean for 180 Myr.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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