大别山及其周边现今垂直形变研究  

Present Crustal Vertical Movement of Dabie Mountain and Surrounding Area

作　　者：宋尚武 王庆良[2] 郝明[2] 周琳[2] 刘立炜[2] 胡亚轩[2] 

机构地区：[1]防灾科技学院,河北省三河市学院街065201 [2]中国地震局第二监测中心,西安市西影路316号710054

出　　处：《大地测量与地球动力学》2018年第1期32-35,共4页Journal of Geodesy and Geodynamics

基　　金：中央高校基本科研业务费(ZY20160305);中国地震局地震行业科研专项(201508009);国家自然科学基金(51479163)~~

摘　　要：基于1980年、2005年和2015年3期区域精密水准网观测资料,利用线性动态平差模型计算获取大别山地区水准网长期垂直运动速度场图像。研究发现,淮河平原地表下沉较为严重,大别山呈现弱隆升趋势运动,长江谷地边缘地区较大别山区呈现明显的隆升运动。跨郯庐断裂带水准剖面结果显示,垂直运动与地形呈负相关和弱相关。As a collision orogenic belt, Dabie mountain is between the Yangtze and North China blocks. To calculate integrally the rate field of Dabie mountain, we use linear deformation models based on leveling obser- vation data in 1980, 2005 and 2015. Our research shows that： Huaihe plain ground is subsiding due to draw- ing groundwater; Dabie mountain is lifting as caused by inheritance movement; Yangtze river valley is also dominated by inheritance movement; and the southern segment of the Tanlu fault is in the stage of strain ac- cumulation. Preparation for a potential earthquake should be undertaken.

关 键 词：水准观测资料 线性动态平差 垂直运动速度场:郯庐断裂带 大别山 

分 类 号：P313[天文地球—固体地球物理学] P315[天文地球—地球物理学]