High-resolution seismic constraints on flow dynamics in the oceanic asthenosphere

Pei-Ying Patty Lin (), James B. Gaherty, Ge Jin, John A. Collins, Daniel Lizarralde, Rob. L. Evans and Greg Hirth
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Pei-Ying Patty Lin: Lamont-Doherty Earth Observatory of Columbia University
James B. Gaherty: Lamont-Doherty Earth Observatory of Columbia University
Ge Jin: Lamont-Doherty Earth Observatory of Columbia University
John A. Collins: Woods Hole Oceanographic Institution
Daniel Lizarralde: Woods Hole Oceanographic Institution
Rob. L. Evans: †Present address: Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung, Taiwan (P.-Y.P.L.).
Greg Hirth: Brown University

Nature, 2016, vol. 535, issue 7613, 538-541

Abstract: Rayleigh waves recorded with an ocean-bottom seismograph array in the central Pacific Ocean constrain the seismic anisotropy within the oceanic lithosphere–asthenosphere system: seafloor-spreading-induced lithospheric fabric generates the strongest anisotropy, while density- and/or pressure-driven flow produces a secondary peak in anisotropy at the base of the asthenosphere.

Date: 2016
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DOI: 10.1038/nature18012

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