徐兖地区,北起兖州、济宁,南达徐州、肖县,西临嘉祥、单县,东到枣庄,大部分为鲁西南地域,面积约15000平方公里。本区位居新华夏第二隆起带西缘与秦岭纬向构造带东段北支交接部位。区内华夏系构造形迹显著,尤以压扭性断裂发育最为普遍。关于该地区压扭性断裂,直到目前尚未发现有专文论述,所见资料仅限于煤田地质报告。本文试图初步分析、归纳区内北东向压扭性断裂的特征和发育规律、形成时代以及研究该规律的实际意义。 Xu Yan area, north from Yanzhou, Jining, South Xuzhou, Xiao County, west Jiaxiang, single county, east to Zaozhuang, most of the area southwest of Shandong, an area of ​​about 15000 square kilometers. This area is located in the junction of the western margin of the second uplifted Xinhuaxia belt and the north branch of the eastern section of the zonal structural belt in the Qinling Mountains. Significant structural features of the Chinese mainland in the region, especially the most common development of compression-shear fractures. As for the crushed fractures in this area, no special paper has been found until now, and the information we see is limited to coalfield geological reports. This paper tries to analyze and summarize the characteristics and development regularity of north-east compressive-shear faults in the region, and to establish the times and to study the practical significance of the law.