论龙门山飞来峰群

Discussions on the klippes in the Longmen Mountains

龙门山飞来峰群带状分布在映秀-北川断裂以东的狭长区域,在分布、构造线方向、内部变形以及组成等方面具有清晰规律性。在研究了飞来峰群的特征,并在实地调查和地震解释基础上,提出一种新的演化模式,认为飞来峰群主要是推覆作用的产物,并辅以滑覆作用;映秀-北川断裂在飞来峰的形成过程中发挥了重要作用。

The klippes in the Longmen Mountains are arranged in a narrow zone east of the Yingxiu-Beichuan fault. A new model for the formation and evolution of the klippes is proposed on the basis of field investigation and seismic interpretation. The author contends that the klippes resulted from the thrusting, followed by the gliding-thrusting. The Yingxiu-Beichuan fault has played an important part in the formation of the klippes in the Longmen Mountains.