气候变化领域集成服务门户(CCPortal): Dating of active normal fault scarps in the Büyük Menderes Graben (western Anatolia) and its implications for seismic history

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DOI	10.1016/j.quascirev.2019.07.002
	Dating of active normal fault scarps in the Büyük Menderes Graben (western Anatolia) and its implications for seismic history
	Mozafari N.; Tikhomirov D.; Sumer Ö.; Özkaymak Ç.; Uzel B.; Yeşilyurt S.; Ivy-Ochs S.; Vockenhuber C.; Sözbilir H.; Akçar N.
发表日期	2019
ISSN	0277-3791
起始页码	111
结束页码	123
卷号	220
英文摘要	Fault scarps, if well-preserved, include precise evidence of past earthquakes. Using cosmogenic 36Cl dating, the timing and slip of paleoearthquakes are recoverable beyond the available earthquake archives. One of the appropriate seismically active regions to apply 36Cl dating is western Anatolia, where its deformation is influenced by an N-S extensional regime, where the horst-graben structures are characterized by normal faults. We have studied well-preserved (meta-) carbonates Kalafat and Yavansu fault scarps in the westernmost part of the Büyük Menderes Graben within western Anatolia. The distribution of cosmogenic 36Cl against height along the fault surfaces indicates that faults experienced minimum three high paleoseismically active phases. The recovered ages of seismic events are ca. 15, 8.4, and 3.6 ka, with vertical components of slip of ca. 0.7, 0.9 and 3.1 m, respectively, for the Kalafat Fault, and ca. 7.9, 3.4, and 2.0 ka with vertical components of slip of ca. 0.6, 3.5, and 2.6 m, respectively, for the Yavansu Fault. The recurrence interval of active periods is generally becoming shortened over time. The ruptures mostly occurred as clustered earthquakes close in time with magnitudes of 6.5–7.1. The vertical slip rates of >0.1, 0.1, and 1.5 mm/yr, and >0.1, 0.8, and 1.9 mm/yr were calculated for the Kalafat and Yavansu faults, respectively. Long-term slip rates were also estimated about 1.0 and 0.6 mm/yr for the Kalafat and Yavansu faults, respectively. Considering the fault lengths, they are capable of producing earthquakes with magnitudes larger than 6.5, and are seismogenic faults. © 2019 The Authors
英文关键词	Cosmogenic isotopes; Eastern Mediterranea; Fault scarp dating; Holocene; Neotectonic
语种	英语
scopus关键词	Earthquakes; Cosmogenic isotopes; Eastern Mediterranea; Fault scarp; Holocenes; Neotectonics; Fault slips; cosmogenic radionuclide; deformation; earthquake; Holocene; neotectonics; normal fault; recurrence interval; seismology; slip rate; Anatolia; Turkey
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151809
作者单位	Institute of Geology, University of Bern, Bern, Switzerland; Geographical Institute, University of Zurich, Zurich, Switzerland; Department of Geological Engineering, Faculty of Engineering, Dokuz Eylül University, İzmir, Turkey; Department of Geological Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey; Laboratory for Ion Beam Physics, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
推荐引用方式 GB/T 7714	Mozafari N.,Tikhomirov D.,Sumer Ö.,et al. Dating of active normal fault scarps in the Büyük Menderes Graben (western Anatolia) and its implications for seismic history[J],2019,220.
APA	Mozafari N..,Tikhomirov D..,Sumer Ö..,Özkaymak Ç..,Uzel B..,...&Akçar N..(2019).Dating of active normal fault scarps in the Büyük Menderes Graben (western Anatolia) and its implications for seismic history.Quaternary Science Reviews,220.
MLA	Mozafari N.,et al."Dating of active normal fault scarps in the Büyük Menderes Graben (western Anatolia) and its implications for seismic history".Quaternary Science Reviews 220(2019).