鄂尔多斯地台南部边缘环形构造的GPS证据及深部地球动力学解释  

The GPS Evidences and Depth Earth Dynamics Explanations of the Ring Structure in South Ordos Platform

作　　者：韩忠东[1] 陈颙[2] 杨锋杰[1] 李丽[2] 

机构地区：[1]山东科技大学地科学院 [2]中国地震局分析预报中心,100036

出　　处：《中国西部科技》2008年第3期1-5,共5页Science and Technology of West China

基　　金：国家重点基础研究发展计划(973计划)项目2003CB214601;国家自然科学基金项目40234038;40374018

摘　　要：通过鄂尔多斯地台及邻近地区1992年以来的GPS观测资料,对2003年和2004年中巴资源卫星所确定的鄂尔多斯地台南部边缘环形影像区域的形成进行了地球表面沉积盖层及地壳运动学分析,并通过前人针对鄂尔多斯地块及其相邻地块的研究,尤其是针对华北克拉通内部的地球物理学研究,做出了环形影像所覆盖的构造区域形成的深部地球动力学解释。研究表明,处于稳定克拉通构造中的鄂尔多斯地台,仍然具有相当的活跃性。这种符合辩证思维的"稳定中的活跃"所形成的根本原因,在于深部圈层的耦合关系,以及周边板块及其圈层构造的联合制约。Using the GPS observed data of Ordos platform since 1992, the kinematic analysis to the the earth＇s surface deposition layer and Crust are given to explain the reason of the ring image＇ s construction, which is determined by the Chinese and Pakistani Resources Satellite during 2003 and 2004; Through studying the Predecessor＇s material of Ordos and the neighboring platforms, in particular the geophysics materials of North China Craton, a reasonable explanation to the structure which is covered by the ring image are proposed. The thorough research indicated that the stable Ordos platform which involved in the North China Craton is a active land parcel＇ . The conclusion that the liveliness is survival in stable environment conforms to the diagnostic method and the basic reason of the structure building lied in the coupling relations of depth circle levels under the plat and together restrictions of the surrounding platforms.

关 键 词：鄂尔多斯地台 遥感影像 环形构造 全球定位系统GPS 地球动力学 

分 类 号：P315.2[天文地球—地震学] P228.4[天文地球—固体地球物理学]