A tectonic escape structure: Erciyes pull-apart basin, Kayseri, central Anatolia, Turkey

Kocyigit, A
Erol, O
A large sinistral intracontinental transcurrent structure, the Central Anatolian Fault Zone (CAFZ), is located between Erzincan in the northeast and offshore of Anamur county in the southwest of Turkey. Northeastern and southwestern segments of the fault zone are linked to each other by an intervening and approximately NS-trending transtensional structure, the Erciyes pull-apart basin (EPB). The Kizilirmak-Erkilet and Dokmetas segments of the CAFZ bend southwards at about 45 degrees -50 degrees near Kayseri and result in a releasing double bend, which has nucleated both the EPB and its main feature, the Erciyes stratovolcano complex (ESVC) since Middle Pliocene time. The EPB is a similar to 35-km-wide, 120-km-long, 1.2-km-deep, lazy S-shaped and actively-growing depression with the ESVC forming a high-standing central barrier between the northern and southern parts of the basin. Hence, the EPB appears as two separate basins, namely the 'Sultansazligi and Kayseri-Sarimsakli depressions'. However this is not correct, because development of the EPB and ESVC has been coeval with the volcanic activity producing the ESVC continuing into prehistoric times. Development of the EPB is continuing as indicated by faulted, uplifted and terraced Pleistocene-Early Holocene palaeolake beach deposits, and historical to recent earthquakes. Accumulative throws on the eastern and western margin-bounding faults of the EPB are 1225 m and 720 m respectively and show that basin development has been asymmetrical. (C) 2001 Editions scientifiques et medicales Elsevier SAS.


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Located within a basin structure, at the conjunction of North East Anatolian, North Anatolian and Ovacik Faults, Erzincan city center (Turkey) is one of the most hazardous regions in the world. Combination of the seismotectonic and geological settings of the region has resulted in series of significant seismic activities including the 1939 (Ms similar to 7.8) as well as the 1992 (Mw = 6.6) earthquakes. The devastative 1939 earthquake occurred in the pre-instrumental era in the region with no available local...
Neotectonic evolution of the northwestward arched segment of the Central Anatolian Fault Zone, Central Anatolia, Turkey
Dirik, K (2001-01-01)
Central Anatolia has undergone complex Neotectonic deformation since Late Miocene-Pliocene times. Many faults and intracontinental basins in this legion were either formed, or have been reactivated, during this period. The eastern part of central Anatolia is dominated by a NE-SW-trending, left lateral transcurrent structure named the Central Anatolian fault zone located between Sivas in the northeast and west of Mersin in the southwest. Around the central part, it is characterized by transtensional depressi...
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Avşar, Ulaş; Doyuran, Vedat; Department of Geological Engineering (2006)
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Moreno, D. Garcia; Hubert-Ferrari, Aurelia; Moernaut, Jasper; Fraser, J. G.; Boes, Xavier; Van Daele, Maarten; Avşar, Ulaş; Cagatay, N.; De Batıst, Marc (Wiley, 2011-04-01)
The Hazar Basin is a 25 km-long, 7 km-wide and 216 m-deep depression located on the central section of the East Anatolian Fault zone (eastern Turkey) and predominantly overlain by Lake Hazar. This basin has been described previously as a pull-apart basin because of its rhombic shape and an apparent fault step-over between the main fault traces situated at the southwestern and northeastern ends of the lake. However, detailed structural investigation beneath Lake Hazar has not been undertaken previously to ve...
TOPRAK, V; Göncüoğlu, Mehmet Cemal (1993-12-01)
The Neogene-Quaternary Central Anatolian Volcanic Province (CAVP) is elongated in a north-east south-west direction within pre-Oligocene basement in central Turkey. This study investigates the field evidence relating to the development of the CAVP.
Citation Formats
A. Kocyigit and O. Erol, “A tectonic escape structure: Erciyes pull-apart basin, Kayseri, central Anatolia, Turkey,” 2001, vol. 14, p. 133, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65909.