Geological and geophysical observations on the tectonic features of western part of the afyon-akşehir graben: A contribution to the arguments on the two-stage extension model Afyon-akşehir grabeni bati{dotless} kenari{dotless}ni{dotless}n tektonik özellikleri üzerine jeolojik ve jeofizik gözlemler: İki evreli genişleme modeli hakki{dotless}ndaki tarti{dotless}şmalara bir katki{dotless}
Yerbilimleri/ Earth Sciences, cilt.35, sa.1, ss.1-16, 2014 (Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 35 Sayı: 1
- Basım Tarihi: 2014
- Dergi Adı: Yerbilimleri/ Earth Sciences
- Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.1-16
- Anahtar Kelimeler: Afyon, Graben, Neotectonics, Normal fault, Sultandaǧi fault, Yakasenek
- Ankara Üniversitesi Adresli: Evet
Özet
The NW-SE trending tectonic contact between the metamorphic basement and the Neogene sedimentary rocks, located at the western side of the Afyon-Akşehir Graben, is interpreted as a reverse fault and is named as the Sultandaǧi{dotless} fault by some researchers. On the contrary, other workers claim that the Sultandaǧi{dotless} fault is a normal fault. Some researchers define the Yakasenek reverse fault which is cut by the Sultandaǧi{dotless} normal fault. In this study, the geological and geophysical studies have been performed on this tectonic contact. The tectonic contact that corresponds to the Yakasenek reverse fault was determined as a NE-dipping plane using with the 'Seismic Beam Steering' method. The identification of the NE-dipping plane instead of SW-dipping shows that the Yakasenek reverse fault, which is interpreted as a product of the Miocene-Pliocene contraction supporting two-stage graben model, does not exist. There is also no field evidence of reverse faulting in the area.