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Comparative New Insight into the Tectonic Origin of Folds and Thrust Faults of an Extensional Basin: Söke-Kuşadasi Basin, Aegean, Western Turkey
Journal of Earth Science ( IF 4.1 ) Pub Date : 2020-06-15 , DOI: 10.1007/s12583-020-1400-0
Bülent Doğan

The Aegean area of the western Anatolian region of Turkey, controlled by the low-angle detachment normal fault system, forms an extensional province, the West Anatolian Extensional Province (WAEP). The tectonic deformation which occurred in the Miocene Period, including the Plio-Quaternary Period has created different structures in both the basement rocks and intra-basin deposits of the crust. One of these structures, high-angle normal faults, controls the supradetachment Söke-Kuşadasi Basin (SKB). Within this basin, there are folds with different axes and thrust faults with a north-northwest-northeast (N, NW, NE) trend. These folds and thrust faults in the SKB deformed the sedimentary structures of intra-basin deposits. The folds and thrust faults, which caused the rotation of beddings and imbrications in the SKB, are mainly associated with the tectonic process of the low angle detachment normal fault, which affected the SKB and the Aegean part of western Anatolia. In the SKB, during the process of extensional deformation associated with primary low angle detachment normal faulting, the ramp-flat and inversion geometry observed in the basement rocks and basin deposits of the crust caused folds and thrust faults in only intra-basin deposits. In the WAEP, it is determined for the first time that the folds and thrust faults causing limited shortening deformed the Plio-Quaternary sediments.

中文翻译:

伸展盆地褶皱和逆冲断层构造成因的比较新见解:土耳其西部爱琴海Söke-Kuşadasi盆地

土耳其安纳托利亚西部地区的爱琴海地区由低角度脱离法线断裂系统控制,形成了一个扩展省,即西安纳托利亚扩展省(WAEP)。在中新世时期(包括上新世-第四纪)发生的构造变形在地壳的基底岩石和盆地内沉积物中形成了不同的结构。这些结构之一是大角度正断层,控制着上分离索克-库萨达斯盆地(SKB)。在这个盆地内,有不同轴的褶皱和逆冲断层,具有北-西北-东北(N,NW,NE)趋势。SKB中的这些褶皱和逆冲断层使盆地内沉积物的沉积结构变形。褶皱和逆冲断层,导致了SKB的层理旋转和积层化,主要与低角度脱离正断层的构造过程有关,这影响了安那托利亚西部的SKB和爱琴海部分。在SKB中,在与初次低角度脱离法向断裂有关的伸展变形过程中,在地壳的基底岩石和盆地沉积物中观察到的斜坡平坦和反演几何仅在盆地内沉积中引起褶皱和逆冲断裂。在WAEP中,首次确定褶皱和逆冲断层导致有限的缩短变形,使上扬第四纪沉积物变形。在地壳的基底岩石和盆地沉积物中观察到的斜坡平坦和反演的几何形状仅在盆地内沉积物中引起褶皱和逆冲断层。在WAEP中,首次确定褶皱和逆冲断层导致有限的缩短变形,使上空第四纪沉积物变形。在地壳的基底岩石和盆地沉积物中观察到的斜坡平坦和反演的几何形状仅在盆地内沉积物中引起褶皱和逆冲断层。在WAEP中,首次确定褶皱和逆冲断层导致有限的缩短变形,使上空第四纪沉积物变形。
更新日期:2020-06-15
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