A Late Pliocene - Quaternary Pinched Crustal Wedge in NW Central Anatolia, Turkey: A Neotectonic Structure Accommodating the Internal Deformation of the Anatolian Plate / KB Orta Anadolu’da Geç Pliyosen – Kuvaterner Kıstırılmış Kabuksal Tektonik Kama: Anadolu Levhasının iç Deformasyonunu Üstlenen Bi
The EPCW, a recently active structure, should be regarded as a potential source in the earthquake risk assessment of central Anatolia, particularly for the capital city Ankara and for Çankırı.
📌 3 Key Takeaways
🎯
Objective & Hypothesis:Öz The Neo-Tethyan suture zone in the western margin of the Çankırı basin (NW central Anatolia, Turkey) has been reactivated as a pinched crustal wedge due to a NW – SE compression created by the right lateral North Anatolian Fault Zone and the Kırıkkale – Erbaa Fault Zone.
📊
Key Findings & Data:This neotectonic structure, the Eldivan-Elmadağ pinched crustal wedge-(EPCW), having a thrusted eastern and normal faulted western margin, has accommodated a 2.8 km shortening since the Late Pliocene.
💡
Conclusion & Impact:The EPCW, a recently active structure, should be regarded as a potential source in the earthquake risk assessment of central Anatolia, particularly for the capital city Ankara and for Çankırı.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Anahtar Kelimeler Neotectonics · Central Anatolia · Seismicity
Özet
Öz The Neo-Tethyan suture zone in the western margin of the Çankırı basin (NW central Anatolia, Turkey) has been reactivated as a pinched crustal wedge due to a NW – SE compression created by the right lateral North Anatolian Fault Zone and the Kırıkkale – Erbaa Fault Zone. This neotectonic structure, the Eldivan-Elmadağ pinched crustal wedge-(EPCW), having a thrusted eastern and normal faulted western margin, has accommodated a 2.8 km shortening since the Late Pliocene. This result accords with the model in which the Anatolian plate is squeezed from the east rather than pulled from the southwest. The EPCW, a recently active structure, should be regarded as a potential source in the earthquake risk assessment of central Anatolia, particularly for the capital city Ankara and for Çankırı.
Adıyaman, O., Chorowicz, J., Arnaud, O.N., Gündoğdu, M.N., and Gourgaud, A., 2001. Late Cenozoic tectonics and volcanism along the North Anatolian Fault: new structural and geochemical data. Tectonophysics 338, 135-165.