汾渭断陷带及邻近区域三维地壳运动特征分析  

Analysis of 3D crustal movement characteristics in Fen-Wei rift zone and its adjacent area

作　　者：纪海源 何远梅 张伟佳[1] 王建伟 郝明[4] 崔笃信[4] Ji Haiyuan;He Yuanmei;Zhang Weijia;Wang Jianwei;Hao Ming;Cui Duxin(Shaanxi Polytechnic Institute,Xianyang 712000,China;Shaanxi New Journey Surveying and Mapping Technology Co.,Ltd.,Xi'an 710000,China;Geodetic Data Processing Center of Ministry of Natural Resources,Xi'an 710054,China;The Second Monitor Center of China Seismological Bureau,Xi'an 710043,China)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000 [2]陕西新旅程测绘科技有限公司,西安710000 [3]自然资源部大地测量数据处理中心,西安710054 [4]中国地震局第二监测中心,西安710043

出　　处：《工程勘察》2022年第6期48-51,67,共5页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(汾渭断陷带现今三维地壳运动研究,41174083)。

摘　　要：汾渭断陷带是我国大陆著名的强震活动带,其复杂的构造运动是地震多发的主要原因,获取汾渭断陷带三维地壳运动特征是深入认识强震孕育动力学的重要手段。本文在《汾渭断陷带陆态网GPS站噪声剔除》;研究的基础上,计算出了汾渭断陷带相对于欧亚板块运动的欧拉参数,获取汾渭断陷带地区相对欧亚板块的地壳水平运动速度场,同时,利用GNSS高程数据和水准测量数据获取了此区域地壳垂直运动速度场,分析了汾渭地区三维运动趋势与形变特征,为地震研究提供重要的基础资料。The Fen-Wei rift zone is a famous strong earthquake active zone in the mainland of China. Obtaining the 3 D crustal movement characteristics in the Fen-Wei fault depression zone is an important means to deeply understand the dynamics of strong earthquakes. In this paper, the author calculates the Euler parameters relative to Eurasia plate fixed of Fen nutrient-laden rift belt. Base on the previous research results, crustal movement velocity field of Fen nutrient-laden rift belt area is obtained. By using GNSS elevation data and leveling data, the vertical crustal movement velocity field in this area is also obtained. The 3 D crustal movement trend and deformation characteristics of the Fen-Wei area are analyzed, which provides important basic data for earthquake research.

关 键 词：GAMIT/GLBOK GNSS 水准 三维地壳运动 

分 类 号：P315[天文地球—地震学]