四川省渡口市地处青藏高原东南缘、云南高原北部,广泛分布石灰岩、变质岩和火成岩。根据传统的观念认为,变质岩和火成岩中地下水很少,甚至没有。但肖楠森教授根据他长期以来从实践所得出的新构造理论认为,这种观念不符合实际。肖楠森教授等曾四次调查,认为渡口位于喜马拉雅断裂带东延部分和贺兰山——六盘山——横断山断裂带南端交会的地方,东西向和南北向新构 Located in the southeastern margin of the Qinghai-Tibet Plateau and northern Yunnan Plateau, Sichuan Province, Dukou, limestone, metamorphic rocks and igneous rocks are widely distributed. According to the traditional view, there is little or no groundwater in metamorphic rocks and igneous rocks. However, according to the new tectonic theory that he has long derived from practice, Professor Xiao Nansen believes that this concept is not realistic. Professor Xiao Nansen et al. Conducted four surveys and concluded that the ferry crossing was located in the eastward extension of the Himalayan fault zone and the intersection of the Helan Mountain-Liupan Mountain-Hengduan Mountains fault zone in the east-west and north-south directions