Active surface deformations detected by precise levelling surveys in the Afyon-Aksehir Graben, Western Anatolia, Turkey
Date
2019Author
Triyakioglu, IbrahimYigit, Cemal Ozer
Ozkaymak, Caglar
Baybura, Tamer
Yilmaz, Mustafa
Ugur, Mehmet Ali
Yalcin, Mustafa
Poyraz, Fatih
Sozbilir, Hasan
Gulal, Vahap Engin
Metadata
Show full item recordAbstract
In the actively deforming region of western Anatolia, crustal deformation is accommodated by destructive earthquakes and a variety of aseismic events. In this study, we investigated the 2016-2017 aseismic sequence located in the Bolvadin Fault, one of the segments of the Aksehir-Simav Fault System of western Anatolia by analysing surface deformation derived from detailed geological mapping. Our findings suggest that surface deformation in the Bolvadin Fault is accommodated by aseismic episodes. During the field studies in the Bolvadin area, progressive surface deformations, such as surface faults and earth fissures with a length of 800 meters to 3 kilometres and strike of N15 degrees E to N70 degrees E were mapped on a 1/5000 scale. Furthermore. a levelling network was established to calculate the vertical displacements and deformation rate along the surface deformations. Precision level measurements were undertaken in 2016 and 2017. On the routes to the NW of the Bolvadin settlement, a vertical deformation rate of 30 mm/yr was detected in the period of 2016-2017, and a large deformation rate of 40 mm/yr was detected in the same period.
Source
GEOFIZIKAVolume
36Issue
1Collections
- Makale Koleksiyonu [5200]
- Öksüz Yayınlar Koleksiyonu - WoS [6162]