Geofizika, Vol. 36 No. 1, 2019.
Izvorni znanstveni članak
https://doi.org/10.15233/gfz.2019.36.4
Active surface deformations detected by precise levelling surveys in the Afyon-Akşehir Graben, Western Anatolia, Turkey
Ibrahim Tiryakioğlu
; Department of Geomatics, Faculty of Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
Cemal Ozer Yigit
; School of Earth and Planetary Sciences, Curtin University, Perth, WA, Australia
Caglar Ozkaymak
; Department of Geology, Faculty of Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
Tamer Baybura
; Department of Geomatics, Faculty of Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
Mustafa Yilmaz
; Department of Geomatics, Faculty of Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
Mehmet Ali Ugur
; Department of Geomatics, Faculty of Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
Mustafa Yalcin
; Bolvadin Municipality, Bolvadin-Afyonkarahisar, Turkey
Fatih Poyraz
; Department of Geomatics, Faculty of Engineering, Cumhuriyet University, Sivas, Turkey
Hasan Sözbilir
; Department of Geology, Faculty of Engineering, Dokuz Eylül University, Izmir, Turkey
Vahap Engin Gulal
; Department of Geomatics, Faculty of Civil Engineering, Yıldız Teknik University, Istanbul, Turkey
Sažetak
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 Akşehir-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°E to N70°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.
Ključne riječi
Akşehir-Simav fault system; surface deformation; digital levelling ; Bolvadin fault; Western Anatolia
Hrčak ID:
228493
URI
Datum izdavanja:
15.7.2019.
Posjeta: 1.270 *