Water in the Supra‐Subduction‐Zone Mantle of the Mariana‐Izu‐Bonin Forearc: Constraints From Peridotitic Orthopyroxene

Abstract Orthopyroxene was analyzed as a proxy for water supra‐subduction‐zone peridotite by polarized infrared radiation. Samples from Conical and Torishima seamounts, Mariana‐Izu‐Bonin forearc (ODP‐Leg 125), have very similar average H2O contents of 215 ppm (range: 122–363 ppm; Conical) and 191 pp...

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Bibliographic Details
Main Authors: J. Gose, E. Schmädicke
Format: Article
Language:English
Published: Wiley 2021-04-01
Series:Geochemistry, Geophysics, Geosystems
Subjects:
Online Access:https://doi.org/10.1029/2020GC009586