概述渭河地堑的形成发育和邻区的耦合关系

将秦岭造山带、渭河地堑和鄂尔多斯盆地作为相互联系的动力学系统，研究造山带-盆地系统中，渭河地堑的发生、发育过程和造山带隆升以及鄂尔多斯盆地构造变动之间的关系。将渭河地堑的发育过程分为：晚白垩世-古新世（1（2-E1），始新世-上新世（E2-N2），第四系（Qp，Qh）三个阶段。20±（2-4）MaBP是青藏高原演化的转折期，青藏高原开始对周围邻区产生整体影响和远程效应，渭河地堑的沉积可以与青藏运动、昆黄运动、共和运动相对应起来，为渭河地堑对青藏高原演化的远程响应。

FORMATION AND EVOLUTION OF THE WEIHE GRABEN AND THE COUPLING RELATIONSHIP WITH ITS ADJACENT AREAS

The Qinling orogenic belt, the Weihe graben and the Ordos basin are linked together to form a dynamic system. In the system formed by orogenic belt and basin, the formation and evolu- tion of the Weihe graben and uplift of the orogenic belt are closely associated with tectonic changes of the Ordos basin. The evolution process of the Weihe graben can be divided into three stages, in- eluding from the Late Cretaceous to Paleocene （ K2--E1 ）, from Eocene to Pliocene and the Quater- nary period （ Qp, Qh） . Evolution of the Qinghai-Tibet Plateau came into a transition period during 20±（2-4） Ma BP, which produced remote effects on its adjacent regions. The Weihe graben pro-duced remote effect on the evolution of the Qinghai-Tibet Plateau when sedimentation in the Weihe graben corresponding to the Qinghai-Tibet, Kunhuang and Gonghe movements.