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Tectonics of the western part of the Polish Outer Carpathians

机译：波兰外喀尔巴阡山脉西部的构造

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The western part of the Polish Outer Carpathians is built up from the thrust, imbricated Upper Jurassic-Neogene flysch deposits. The following Outer Carpathian nappes have been distinguished: Magura Nappe, Fore-Magura group of nappes, Silesian, Subsilesian and Skole nappes. Interpretation of seismic and magnetotelluric survey from the region South of Wadowice, allows observation of relationship between basement and flysch nappes in the Outer Carpathians. It also allows identification of dislocation Cutting both flysch nappes and their basement. All the Outer Carpathian nappes are thrust over the southern part of the North European Platform. The platform basement is composed of older Precambrian metamorphic rocks belonging to the Bruno-Vistulicum terrane. Sedimentary cover consists of Paleozoic, Mesozoic and Neogene sequences. The characteristic features of this boundary are horsts and troughs of general direction NW-SE, turning W-E. Faults cutting only the consolidated basement and the Paleozoic cover were formed during the Hercynian Orogeny in the Carboniferous and the Early Permian. Most of the older normal faults were covered by allochtonous flysch nappes forming thus the blind faults. During the last stage of the geodynamic development the Carpathians thrust sheets moved towards their present position. Displacement of the Carpathians northwards is related to development of dextral strike-slip faults of N-S direction. The orientation of this strike-slip fault zones zone more or less coincides with the surface position of the major faults perpendicular to the strike of the Outer Carpathian thrustsheets. The huge fault cuts formations from the Paleozoic basement through the flysch allochton between the boreholes in Sucha Beskidzka area. The displacement of nappes of the Carpathian overthrust and diapiric extrusion of plastic formations of the lower flysch units occurred along this fault.
机译：波兰外喀尔巴阡山脉的西部是由上侏罗统-新近纪上覆冲积矿床形成的逆冲构造。以下是喀尔巴阡山脉的外推布：Magura推布，Fore-Magura推布组，Silesian，Subsilesian和Skole推布。从瓦多维采（Wadowice）南部地区进行地震和大地电磁测量的解释，可以观察到外喀尔巴阡山脉的地下室与复理纳普之间的关系。它还可以识别位错。切割蝇fly及其基底。所有喀尔巴阡山脉外的尿布都被推到北欧平台的南部。平台地下室由属于Bruno-Vistulicum地层的较早的前寒武纪变质岩组成。沉积物覆盖层由古生代，中生代和新近纪序列组成。该边界的特征是大体方向NW-SE的起伏，转为W-E。在石炭纪和早二叠世的海西造山运动期间形成了仅切割固结基底和古生代盖层的断层。大部分较老的正常断层被杂乱的复理覆岩覆盖，从而形成了盲断层。在地球动力学发展的最后阶段，喀尔巴阡山脉的冲断片向其当前位置移动。喀尔巴阡向北的位移与N-S方向右旋走滑断裂的发展有关。该走滑断层带的方向或多或少与垂直于喀尔巴阡山脉逆冲冲断层走向的主要断层的表面位置一致。巨大的断层从苏恰贝斯基兹卡地区的钻孔之间的古生代地下室到井间碎屑冲切层切割了地层。沿该断层发生了喀尔巴阡上推覆的推覆位移和下复理层单元塑性地层的二次推挤。

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