利用高精度航磁资料研究滁州—六合地区断裂构造

摘要

According to the latest high precision 1∶25 000 aeromagnetic data with the aid of 1∶200 000 gravity data,the authors reinvestigated the faults in Chuzhou-Liuhe area.The results show that the structural framework of the study area consists of NNE,NE,NW trending faults which are the main rock-controlling,basin-controlling and mineral-controlling faults.The structural traces of Tanlu fault (Jiangsu and Anhui section) and Huang-Po deep fault at the center are different from things on both sides,forming unique structure characterized by "trunk" at the center and "branches" on both sides.The authors also discussed the controlling action of the EW,NNE secondary faults on the mineral resources in the east Bengbu uplift,and the evolutionary relations between Taulu fault (Jiangsu and Anhui Section) and northeast part of Hefei basin.%利用最新的1∶2.5万高精度航磁资料,辅以1∶20万重力资料,对滁州—六合地区断裂构造进行了重新厘定和推断.结果显示,区内基本构造格架由北北东向、北东向、北西向3组断裂构成,它们是区内主要的控岩、控盆、控矿断裂.中部郯庐断裂带(苏皖段)与黄—破深断裂与两侧的构造形迹具有明显差异,形成了类似中部“树干”、两侧“树枝”的独特结构特征.笔者还简要讨论了近东西向、北北东向次级断裂对蚌埠隆起东段矿产的控制作用,以及郯庐断裂带(苏皖段)与合肥盆地东北部演化的关系等问题.