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标题：Kinematics of the East Anatolian Fault Zone between Turkoglu (Kahramanmaras) and Celikhan (Adiyaman), eastern Turkey
其他标题：Kinematics of the East Anatolian Fault Zone between Turkoglu (Kahramanmaras) and Celikhan (Adiyaman), eastern Turkey
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作者：Huseyin Yilmaz ; Semir Over ; Suha Ozden 等
期刊名称：Earth, Planets and Space
电子版ISSN：1880-5981
出版年度：2006
卷号：58
期号：11
页码：1463-1473
DOI：10.1186/BF03352645
出版社：Springer Verlag
摘要：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 σ 1 axis 156 ± 11° and an E- to NE-trending σ 3 axis, 67 ± 9°σ 3 , 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 σ 1 and an approximately E-W (N89°E)-trending σ 3 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.
关键词：Anatolia ;East Anatolian Fault ;stress state ;earthquake ;fault-slip inversion