新生代以来中国大陆岩石圈尺度的大地构造分区  

GEOTECTONIC UNITS OF CHINA CONTINENT ON A LITHOSPHERIC SCALE SINCE CENOZOIC

作　　者：邓晋福 莫宣学 赵海玲 罗照华 吴宗絮 

机构地区：[1]地质矿产系

出　　处：《地球科学（中国地质大学学报）》1997年第3期227-232,共6页Earth Science-Journal of China University of Geosciences

基　　金：地质矿产部基础研究项目;国家自然科学基金

摘　　要：基于大陆根柱构造概念，讨论了新生代以来中国大陆岩石圈尺度的大地构造分区．地壳浅部主要表现为３种构造形态，即西部青藏挤压造山带、东部大陆裂谷带和中部克拉通块体群，它们分别对应山根与造山岩石圈根、地幔热柱和大陆（岩石圈）根．认为浅部构造形态是对壳幔深部构造的一种响应．简述了对应于岩石圈尺度的３个大地构造单元的软流圈的性质与类型．讨论了中国大陆东西部的成因联系．中国大陆上同时并存的３种构造形态。Based on the concept of continental roots plume tectonics, geotectonic units of China continent on a lithospheric scale since Cenozoic are discussed in this paper. Three main tectonic forms occurred at the shallow level of the China continent since Cenozoic, i. e. continental rift zone of East China, cratonic block group of Middle China, and orogenic belt of Qinghai Tibet orogenic belt of West China, which are believed to correspond to mantle plume, continental (lithospheric)root, and orogenic lithospheric root & mountain root, respectively. The tectonic forms at the shallow level are considered to be a response of the deep roots plume tectonics. A brief description is made of the nature and types of the asthenosphere beneath three tectonic units of China in correspondence to the geotectonic units of China continent on a lithospheric scale. A genetic relationship between the East and the West China is discussed. Coexistence of three main tectonic forms on the China continent is thought to be an epitome of global continental tectonics.

关 键 词：大陆 岩石圈尺度 大地构造分区 新生代 中国 

分 类 号：P31[天文地球—固体地球物理学] P542.2[天文地球—地球物理学]