Slab Induced Mantle Upwelling Beneath the Anatolian Plateau

Lynner C., Delph J. R., Portner D. E., Beck S. L., Sandvol E., ÖZACAR A. A.

GEOPHYSICAL RESEARCH LETTERS, cilt.49, sa.11, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 11
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1029/2021gl097451
  • Dergi Adı: GEOPHYSICAL RESEARCH LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Compendex, Geobase, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: seismic anisotropy, cyprean slab, mantle upwelling, Anatolia, subduction dynamics, SEISMIC ANISOTROPY, CONTINENTAL LITHOSPHERE, SUBDUCTION TERMINATION, WAVE, DEFORMATION, TURKEY, EVOLUTION, INSIGHTS, ZONE, TOMOGRAPHY
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The subducting African Plate in the easternmost Mediterranean is actively tearing and deforming beneath the Anatolian Plate as the margin transitions from long-lived subduction to collision. In central Anatolia, the subducting slab is characterized by both lateral and vertical slab tears. We investigate patterns of mantle flow around the edges of a contorting and fragmenting African slab segment, called the Cyprean slab, using measurements of shear wave splitting. We observe three distinct regions of coherent shear wave splitting that correlate with the segmentation boundaries of the Cyprean slab. Regionally coherent mantle flow occurs near both the eastern and western the edges of the slab. These regions of coherent splitting are separated by an area of null splitting that encompasses the Central Anatolian Volcanic Province near the easternmost edge of the slab. The null measurements likely result from mantle upwelling due to the displacement of asthenosphere from the vertical Cyprean slab.