笔者认为,骊山地区的前长城纪地层,实际上是沉积变质岩。它可分为太古界太华群片麻岩系和元古界石英岩、千枚岩系,两者为不整合接触,代表嵩阳期的产物。这套地层经褶皱叠加,到燕山晚期巳固化成刚性基底,在南北向挤压作用下,形成剪性的斜向X型断裂和南北向剪性断裂。至喜山期断裂运动加剧,形成骊山断块。 The author believes that the pre-Great Wall of Lishan area stratigraphy, in fact, sedimentary metamorphic rocks. It can be divided into Archean Taihua Group gneiss and Proterozoic quartzite, phyllite series, the two are unconformity contact, on behalf of Songyang period product. This formation is superimposed by folds and has been solidified to a rigid base late Yanshanian. Under the extrusion of north-south, shear-type oblique X-shaped faults and NS-shear shear faults are formed. To the Himalayan fault movement aggravated, the formation of Lishan block.