摘要
通过地层关系、构造变形分析及有限应变测量等方面的研究表明,位于龙门山北段推覆构造前缘的唐王寨向斜主体,为大型外来岩块。它与龙门山中段彭灌飞来峰群一样,是随龙门山推覆隆起而在重力作用下形成的滑覆体。
The Tangwangzhai syncline of Longmenshan is believed to be a big gravity gliding nappeby the following facts: 1).Anomalous strata relationship; 2).Disharmonic structures; 3).Special spoon-shaped faults associated with listric normal faults and thrusts; 4).Movement directions of gliding sheets; 5).Deformation and strain distribution of gliding sheets. The formation of the gliding nappe of Longmenshan is based on upwarping caused by thrust andnappe tectonics.
关键词
龙门山
唐王寨
滑覆构造
thrust and nappe tectonics
gravity structure
gliding nappe
Longmenshan Mountains
