The eastern region of Sichuan basin is located between Huaying Mountain and Qiyaodan Mountain. After multiple periods of complex structural superposition and transformation, high and steep tectonic belts and faults were formed. It is difficult to detect and distinguish hidden faults in the high and steep tectonic belts in geophysical exploration. Based on the forward and inverse simulation results of gravity, magnetic and electric detection methods, the authors have reached the conclusion that buried faults in high and steep fault folds can be detected and recognized. Combined with the practical application effect of gravity, magnetic and electric integrated geophysical prospecting methods in high and steep fault folds in eastern Sichuan, the authors summarized the abnormal morphology and abnormal characteristics of buried faults . At the same time, the experimental results of field data acquisition interference suppression and the forward inversion processing method of fault fracture zone anomalies were also summarized. The results obtained by the authors provide a reference basis and experience accumulation for geological exploration in eastern Sichuan.
彭明涛, 王磊, 曾明勇, 谢兵兵, 莫韦涛. 综合物探方法在川东高陡断褶带隐伏断层勘探中的应用研究[J]. 物探与化探, 2021, 45(4): 882-889.
PENG Ming-Tao, WANG Lei, ZENG Ming-Yong, XIE Bing-Bing, MO Wei-Tao. The application of integrated geophysical prospecting to the exploration of buried faults in the high and steep fault-fold zone in eastern Sichuan. Geophysical and Geochemical Exploration, 2021, 45(4): 882-889.
Li Z X, Zeng Z F, Li E Z, et al. The function of geophysical method in active fault detection and discuss of combining methods[J]. Journal of Jilin Unviersity:Earth Science Edition, 2005,35(s1):109-114.