Paleomagnetic constraints on the timing and distribution of Cenozoic rotations in Central and Eastern Anatolia


Gürer D., Van Hinsbergen D., Özkaptan M. , Creaton I., Koymans M., Cascella A., ...Daha Fazla

Solid Earth, sa.47, ss.1-47, 2017 (SCI İndekslerine Giren Dergi)

  • Yayın Türü: Makale / Tartışma
  • Basım Tarihi: 2017
  • Doi Numarası: 10.5194/se-2017-66
  • Dergi Adı: Solid Earth
  • Sayfa Sayıları: ss.1-47

Özet

To quantitatively reconstruct the kinematic evolution of Central and Eastern Anatolia within the framework of 10 Neotethyan subduction accommodating Africa-Eurasia convergence, we paleomagnetically assess timing and amount of vertical axis rotations across the Ulukışla and Sivas regions. We show paleomagnetic results from ~30 localities identifying a coherent rotation of a block - comprising the southern Kırşehir Block, the Ulukışla basin, the Central and Eastern Taurides, and the southern part of the Sivas basin. This block experienced a ~30° counter-clockwise vertical axis rotation since Oligocene time. Sediments in the northern Sivas region show clockwise rotations. We use the rotation patterns together with 15 known fault zones to argue that the counter-clockwise rotating domain of south-central Anatolia was bounded by the Savcılı Thrust Zone and Deliler-Tecer Fault Zone in the north and by the African-Arabian trench in the south, the western boundary of which is poorly constrained and requires future study. Our new paleomagnetic constraints provide a key ingredient for future kinematic restorations of the Anatolian tectonic collage.