全球中、新生代大地构造特征及其演化框架——《全球中、新生代大地构造图》编图研究进展

Global tectonic characteristics of Mesozoic and Cenozoic and its evolution framework——Updates from the compilation of Mesozoic and Cenozoic Global Tectonic Map

全球中、新生代大地构造编图是全球构造理论研究的基础和切入点,本文介绍了该图编制思路与方法、数据来源和大地构造区划,并以地球圈层构造为主线,讨论了全球中生代以来水平构造和全球垂向圈层之间的衔接关系,认为大洋中脊和环太平洋边缘俯冲带通过印度洋、北冰洋、特提斯构造域以及南极洲板块发生构造衔接和转换。南极洲板块周缘被洋中脊环绕,并衔接了全球洋中脊在地球南部的离散运动。结合构造赤道理论,分析了全球不同构造背景下的构造单元之间的关系,认为构造赤道是中生代以来全球构造体制大规模调整的产物。在此基础上,从泛大陆裂解,洋陆关系的角度探讨了中、新生代的全球构造演化。

The tectonic Mapping of global Mesozoic and Cenozoic is the basis of the global tectonic theory research,which is compiled to reflect the integrated geology,geomorphology,geophysics.This paper introduced the compiling methods,data,map content,and tectonic division.We analyzed the connection relationship between global horizontal tectonic and vertical tectonic based on layer structure of earth.The mid ocean ridge and the subduction zone around Pacific are connected and transformed by the Indian Ocean,the Arctic ocean,Tethys tectonic zone and Antarctic plate.Antarctic plate is surrounded by the mid ocean ridge and absorb all of discrete motion of the global mid ocean ridge in the southern part of earth.In addition,the theory of tectonic equator supports the relationship between tectonic units under different global tectonic zone,which is the result of global tectonic of Mesozoic and Cenozoic adjustment.Finally,this paper discussed the global tectonic evolution of the Mesozoic and Cenozoic in the perspective of Pangea breaking.