文章基本信息

标题：The Manyas fault zone (southern Marmara region, NW Turkey): active tectonics and paleoseismology
本地全文：下载
作者：Akın Kürçer ; Volkan Özaksoy ; Selim Özalp 等
期刊名称：Geodinamica Acta
印刷版ISSN：0985-3111
电子版ISSN：1778-3593
出版年度：2017
卷号：29
期号：1
页码：42-61
DOI：10.1080/09853111.2017.1294013
语种：English
出版社：Taylor & Francis Group
摘要：The Manyas fault zone (MFZ) is a splay fault of the Yenice Gönen Fault, which is located on the southern branch of the North Anatolian Fault System. The MFZ is a 38 km long, WNW–ESE-trending and normal fault zone comprised of three en-echelon segments. On 6 October 1964, an earthquake (Ms = 6.9) occurred on the Salur segment. In this study, paleoseismic trench studies were performed along the Salur segment. Based on these paleoseismic trench studies, at least three earthquakes resulting in a surface rupture within the last 4000 years, including the 1964 earthquake have been identified and dated. The penultimate event can be correlated with the AD 1323 earthquake. There is no archaeological and/or historical record that can be associated with the oldest earthquake dated between BP 3800 ± 600 and BP 2300 ± 200 years. Additionally, the trench study performed to the north of the Salur segment demonstrates paleoliquefaction structures crossing each other. The surface deformation that occurred during the 1964 earthquake is determined primarily to be the consequence of liquefaction. According to the fault plane slip data, the MFZ is a purely normal fault demonstrating a listric geometry with a dip of 64°–74° to the NNE.
关键词：NW Anatolia; southern Marmara; Manyas fault zone; Manyas earthquake; paleoseismology