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April 24, 2026Geophysical Research Letters0 citationsOpen Access

Layered Seismic Anisotropy and Tectonics of the Anatolian Plate

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CLChuanming LiuVSV. Schulte‐PelkumTBThorsten W. Becker

Key Points

  • This research aims to understand the tectonic processes affecting the Anatolian Plate by examining seismic anisotropy.
  • Constructed a three-layer seismic anisotropy model with new Rayleigh wave measurements.
  • Compared results with geodetic strain rates and receiver function analysis for the crust and shear wave splitting for the mantle.
  • Analyzed the effects of tectonic deformation and mantle convection on anisotropy.
  • Crustal anisotropy is controlled by recent tectonics, particularly near fault zones.
  • Lithospheric mantle anisotropy reflects current deformation in western Anatolia, while eastern Anatolia shows signs of past deformation.
  • Asthenospheric anisotropy indicates mantle convection influenced by Hellenic slab retreat.

Abstract

Abstract Anatolian tectonics are associated with slab retreat in the west and gravitational potential energy and continental collision in the east, leading to westward motion of Anatolia relative to Eurasia, partially accommodated on the North and East Anatolian transform faults. We construct a three‐layer, azimuthal seismic anisotropy model using new Rayleigh wave measurements and compare results against geodetic strain‐rates and new receiver function analysis for the crust, as well as new and existing shear wave splitting for the mantle to link surface and deep dynamics. In the crust, anisotropy is primarily controlled by recent tectonics, especially along major fault zones. In the lithospheric mantle, anisotropy reflects ongoing tectonic deformation in western Anatolia, whereas eastern Anatolia mainly preserves prior deformation signatures. In the asthenosphere, anisotropy reflects mantle convection, including the effects of Hellenic slab retreat. Our model provides new constraints on lithospheric deformation and geodynamics in the Eastern Mediterranean.

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Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/69eb08ef553a5433e34b39achttps://doi.org/10.1029/2025gl120326
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