Deformation, CPO, and Elastic Anisotropy in Low‐Grade Metamorphic Serpentinites, Atlantis Massif Oceanic Core Complex
نویسندگان
چکیده
Crystallographic preferred orientation (CPO) and the associated seismic anisotropy of serpentinites are important factors for understanding tectonic settings involving hydrated Earth´s mantle, example, at slow-spreading mid-ocean ridges. CPO lizardite magnetite in low-grade metamorphic from Atlantis Massif oceanic core complex (Mid-Atlantic Ridge, 30°N) were determined using synchrotron high energy X-ray diffraction combination with Rietveld texture analysis. Serpentinite mesh structures show weak while deformed samples a single (0001) maximum perpendicular to foliation. Seismic anisotropies calculated up >11% compressional waves (Vp) shear wave splitting 0.38 km/s samples. This indicates that deformation zones controls elastic highlights its importance defining signature upper mantle.
منابع مشابه
Structure of oceanic core complexes: Constraints from seafloor gravity measurements made at the Atlantis Massif
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2021
ISSN: ['1944-8007', '0094-8276']
DOI: https://doi.org/10.1029/2021gl092986