Tectonic geomorphology of Türkiye and its insights into the neotectonic deformation of the Anatolian Plate

作     者：Yuqiao Chang Yihui Zhang Huiping Zhang Yuqiao Chang;Yihui Zhang;Huiping Zhang

作者机构：Yunnan Earthquake AgencyKunming650216China State Key Laboratory of Earthquake DynamicsInstitute of GeologyChina Earthquake AdministrationBeijing100029China 

出 版 物：《Earthquake Research Advances》 (地震研究进展（英文）)

年 卷 期：2024年第4卷第1期

页      面：23-35页

核心收录：

学科分类：070904[理学-构造地质学] 0709[理学-地质学] 07[理学] 09[农学] 0903[农学-农业资源与环境] 

基　　金：supported by the Key Research and Development Plan of Yunnan Province:The Technology of the Comprehensive Risk Assessment of the Earthquake Catastrophe and the Disaster Chains in Yunnan and Its Application(No.202203AC100003) Institute of Geology,China Earthquake Administration(No.IGCEA2302)。 

主　　题：Geomorphic indices Quantitative Türkiye Tectonic activity 

摘      要：Quantitative geomorphic analyses are usually powerful in identifying active tectonics across global orogenic belts.Our present study will focus on the Anatolian Plate which hosts a lot of recent catastrophic earthquakes in Türkiye.Six geomorphic indices for 100 sub-basins around Türkiye have been computed including local relief,slope,normalized steepness index(k_(Sn)),hypsometric curve and integral(HI),transverse topographic symmetry factor(Tf),and the basin asymmetry factor(Af).The averaged kSnand Af values have shown four high-value anomalous zones,suggesting relatively high uplift rates featured by high river incision and regional tilting.The values of 0.35≤HI0.6 for basins with S-shaped curves imply intensive tectonic activities along the eastern part of the North Anatolian Fault Zone(NAFZ),the Northeast Anatolian Fault Zone(NEAFZ),the East Anatolian Fault Zone(EAFZ),and the Central Anatolian Fault Zone(CAFZ).All results of the geomorphic indices analysis suggest a relatively high degree of tectonic activity in the following four areas,the Isparta Angle,the Eastern Black Sea Mountains,the South-eastern Anatolia Region,and the Central Anatolian fault zone.We further suggest that the eastern part of the NAFZ,NEAFZ,EAFZ,and CAFZ will be more active in tectonic activities,with a greater potential for strong earthquake occurrence.