摘要
1 Introduction The western Sichuan depression is a foreland basin which formed since late Triassic. The middle part of it is the focus of our study, the west boundary is Longmen mountain and the east is Zhongjiang, the north is arrived in Mianyang, Anxian and the south is to Chengdu.
1 Introduction The western Sichuan depression is a foreland basin which formed since late Triassic. The middle part of it is the focus of our study, the west boundary is Longmen mountain and the east is Zhongjiang, the north is arrived in Mianyang, Anxian and the south is to Chengdu.
