Kinematics of the East Anatolian Fault Zone between Turkoglu Kahramanmaras and Celikhan Adiyaman, eastern TurkeyReport as inadecuate




Kinematics of the East Anatolian Fault Zone between Turkoglu Kahramanmaras and Celikhan Adiyaman, eastern Turkey - Download this document for free, or read online. Document in PDF available to download.

Earth, Planets and Space

, Volume 58, Issue 11, pp 1463–1473

First Online: 25 December 2006Received: 13 June 2005Revised: 17 February 2006Accepted: 12 July 2006

Abstract

In this study we determined the stress regime acting along the East Anatolian Fault Zone between Turkoglu Kahramanmaras and Celikhan Adiyaman, from the Neocene to present-day, based on the inversion of striations measured on faults and on the focal mechanisms of earthquakes having magnitudes greater than 5.0. The inversions yield a strike-slip stress regime with a reverse component i.e., transpression operative in the Neocene to present with a consistent N-to NW-trending σ1 axis 156 ± 11° and an E- to NE-trending σ3 axis, 67 ± 9°σ3, producing left-lateral motion along the East Anatolian Fault Zone. The inversions of focal mechanisms yield a strike-slip stress deviator characterized by an approximately N-S N89°W-trending σ1 and an approximately E-W N89°E-trending σ3 axis. Both the kinematic analysis and structural observations indicate that the stress regime operating in the study area has had a transpressional character, giving rise to the Mio-Pliocene compressive structures reverse faults, thrusts and folds observed in the study area. Field observations allow estimation of a Pliocene age for the strike-slip East Anatolian Fault Zone.

Key wordsAnatolia East Anatolian Fault stress state earthquake fault-slip inversion  Download to read the full article text



Author: Huseyin Yilmaz - Semir Over - Suha Ozden

Source: https://link.springer.com/







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