Mezoscopic tectonic features and geological evolution of the Sultandaglari Massive at southwest of Cay (Afyon), Turkey
Geological Bulletin of Turkey, cilt.40, sa.2, ss.17-28, 1997 (Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 40 Sayı: 2
- Basım Tarihi: 1997
- Dergi Adı: Geological Bulletin of Turkey
- Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.17-28
- Ankara Hacı Bayram Veli Üniversitesi Adresli: Evet
Özet
The study area is located in the northwestern part of Sultandaglari Massif comprising autochthonous, allocththonous and neoautochthonous units. Autochthonous units is composed of volcano sedimentary Gokoluk formation of Infracambrian age and Upper Jurassic Saritas formation containing the carbonate rocks of shallow sea an doverlying the former with an angular unconformity. The dykes of Mesozoic Kocakizil dolerite cut these formations. The Upper Cambrian-Lower Ordovician Sultandede formation in conformity with Lower(?)-Middle Cambrian aged Caltepe limestone, overlies tectonically the autochthonous units. Thse units are also overlain by the Mesozoic aged Hoyran ophiolite and Hacialabaz limestone olistolithe. All ofthese sequences is covered by the Pliocene Yarikkaya formation and the Quaternary alluvial deposits. The regional discordances point that Assyntic, Caledonian, Hercynian and Alpine orogenies were effective in the area. Gokoluk formation deformed by Asyntic movement and Lower Paleozoic aged sequence were effected from Hercynian and Caledonian orogenic movements. As a result of these movements, the units gained the overlain deformative geometric forms, being undergone at least three phases of deformation (F1,f2,f3) and the metamorphism. While the third deformation phase (f3) forms the kink band, the renulation cleavages and zig-zag folds; it also deformed the lines developed in the second phase. As a result of the Alpine movements, rifting in Triassic and, nappes and thrust in Senonian were developed. Finally, the cross block fraturings developed during the tensional and neotectonic period in Miocene were caused the Sultandaglari to gain the present horst configuration of NW-SE and NNE-SSW.