构造赤道及其地球动力学意义

doi:10.16539/j.ddgzyckx.2015.06.006

CORC > 北京大学 > 地球与空间科学学院

	构造赤道及其地球动力学意义; Tectonic Equator and its Geodynamical Implications
	刘仲兰 ; 李江海 ; 张华添 ; 王洪浩
刊名	大地构造与成矿学
	2015
关键词	构造赤道地壳断面地幔向西流板块运动活动构造 tectonic equator geotransect westward drift plate motion active tectonics
DOI	10.16539/j.ddgzyckx.2015.06.006
英文摘要	构造赤道是现今全球岩石圈板块相对深部地幔的优势运动方位.它的方位不同于地理赤道,整体上表现为NWW-SEE向横贯全球,在东非-中亚-东北亚表现为SW-NE向.本文在调研全球地壳断面资料的基础上,结合全球板块运动数据、活动断裂数据,首次编制了构造赤道的全球地壳断面图,对其地壳结构、构造特征及其运动演化进行探讨.构造赤道在大陆地壳区,主要跨越古生代地壳.沿着构造赤道廊带,从非洲开始,向东依次显示了伸展-挤压-伸展-挤压-伸展-挤压-伸展的相交替的运动特征,出现不同类型的重要板块构造边界及其构造单元,并控制了重要构造地貌单元的发育.它是泛大陆裂解以来全球构造运动的重要体现,并明显受到星际力学的影响和调整.; Tectonic equator mainly represents trajectories of the motion of the lithosphere with respect to underlying mantle. It is not a common geographical equator, but is generally NWW-SEE, with a large SW-NE trending undulation from east African to the western Pacific. According to geotransects along tectonic equator, database of global plate motion and database of global active fault, we propose a tectonic equator geotransect for the first time, and try to analyze its crust structure, tectonic feature and evolution. We find that the tectonic equator is more likely crossing the Paleozoic continental crust, this may relate to their rheological properties. Along tectonic equator, the tectonic features represent extension-squeezing -extension-squeezing-extension-squeezing-extension from west to east. Tectonic equator controls development of some important plate tectonic boundaries, tectonic units, and important geomorphic units. It is an important global plate motion after the break off of Pangea, and may be affected by celestial mechanic. ? 2015, Science Press. All right reserved.; 大洋“十二五”印度洋脊多金属硫化物成矿潜力与资源环境评价; 大洋“十二五”西南印度洋脊合同区多金属硫化物资源评价; EI; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 6; 1041-1048; 39
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/435749]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	刘仲兰,李江海,张华添,等. 构造赤道及其地球动力学意义, Tectonic Equator and its Geodynamical Implications[J]. 大地构造与成矿学,2015.
APA	刘仲兰,李江海,张华添,&王洪浩.(2015).构造赤道及其地球动力学意义.大地构造与成矿学.
MLA	刘仲兰,et al."构造赤道及其地球动力学意义".大地构造与成矿学 (2015).