The internal structure of Beypazarı Blind Thrust Zone around Çayırhan

Yıl 2020, Cilt: 163 Sayı: 163, 77 - 97, 15.12.2020

Anıl Ardahanlıoğlu Gürol Seyitoğlu Korhan Esat

https://doi.org/10.19111/bulletinofmre.651712

Öz

The Beypazarı Blind Thrust Zone, which is surrounded by the North Anatolian, the Eskişehir, and the Kırıkkale-Erbaa fault zones, is a recently defined neotectonic structure developed in the NW central Anatolia together with the Eldivan-Elmadağ and the Abdüsselam Pinched Crustal Wedges. In this study, the internal structure of the Beypazarı Blind Thrust Zone has been examined in detail around Çayırhan region. It has been defined that it consists of the Karaköy, Sekli, Nalçabayırı, Uzunbayır blind thrusts, Davutoğlan Back Thrust, and Beypazarı Blind Thrust I-II from North to south, respectively with help of the fault-propagation folds in the study area. The existence of economically important and operational resources such as lignite and trona in the Neogene sequence affected by these faults in the region and earthquake generating potential of the faults determined in previous studies increase the importance of this study.

Anahtar Kelimeler

Central Anatolia, Neotectonics, Blind thrust fault, Earthquake, Faultpropagation fold

Teşekkür

This article is a part of the MSc thesis of the first author who is about to complete it in the Tectonics Research Group of Ankara University. It was benefited from the field support given by the Faculty of Engineering of Ankara University to the “Advanced Geological Mapping” courses. We appreciate a lot for this opportunity. In addition, we would like to thank to Efe Demirci, the member of the Tectonics Research Group, for his contributions during field studies and to referees Prof. Dr. Yaşar Eren and Assoc. Prof. Dr. Volkan Özaksoy for their constructive contributions.

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