三江地区盐源-丽江及川滇地块的地震活动与构造运动态势  

TECTONICS AND MOVING TENDENCY OF YANYUAN- LIJIANG AND CHUANDIAN BLOCKS IN SANJIANG AREA

作　　者：王庆廷[1] 熊熊[2] 蒋福珍[2] 

机构地区：[1]中国地震局地震研究所,武汉430071 [2]中国科学院测量与地球物理研究所,武汉430077

出　　处：《大地测量与地球动力学》2002年第2期91-96,共6页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金项目 (4 98740 0 5 )资助

摘　　要：阐述了盐源 -丽江地块的存在及其边界 ,根据遥感影像等资料论述了该地块范围内强烈地震活动和构造运动 ,并提出盐丽、川滇等地块的构造及运动态势应是在印度板块北移、压入欧亚板块并与之夹挤的作用下 ,使其间部分地球物质向东、东南或转向西南移 (流 )The existence of the Yanyuan Lijiang block and its boundary are dicided and described in this paper.On the basis of remote sensing image and other data the strong seismicity and tectonic movement are discussed.The authors suggest that the generation of the Yanyuan Lijiang and Chuandian crustal blocks and their moving tendency should be resulted from the northward movement of the India plate and its indentation into Eurasia plate and the squeeze by the two plates,then they froce the earth substance in between to move(flow)eastwards,eastsouthwards and westsouthwards.

关 键 词：川滇地块 地震活动 构造运动 盐源-丽江地块 断块运动 地球物理挤出 

分 类 号：P315.2[天文地球—地震学]