沂沭断裂带重力场及时空动态演化特征  

ON GRAVITY FIELD AND IT'S DYNAMICALLY EVOLUTIONAL CHARACTERISTICS OF YISHU FAULT ZONE

作　　者：祝意青[1] 韩海华[2] 郭树松[1] 

机构地区：[1]中国地震局第二监测中心,西安710054 [2]山东省地震局,济南250014

出　　处：《大地测量与地球动力学》2008年第6期61-67,共7页Journal of Geodesy and Geodynamics

基　　金：地震行业科研专项(200808045);“十一五”国家科技支撑计划重点项目(2006BAC01B02-02-04)

摘　　要：利用鲁南地区1996—2006年的流动重力测量资料,研究了沂沭断裂带重力场的时空动态演化特征。研究表明:重力场变化与活动断裂构造密切相关,重力场有规律的变化与区域应力-应变场微动态活动有关。区域重力场总的趋势变化为齐村至郯城坳陷区一带重力正值变化,蒙阴隆起区一带重力负值变化。The dynamically evolutional characteristics and spatial domains of gravity field in the Yishu fault zone are researched. Ten-year dynamic change charts show that the gravity changes are related with the structures of active faults, also the regularity of gravity changes is related with the micro dynamic activities of stress-strain field. The total trends of regional gravity field change pressed area, and a negative change in Mengyin show a positive gravity change between Qicun and Tancheng deuplifted area.

关 键 词：重力场演化 地壳运动 构造活动 沂沭断裂带 流动重力测量 

分 类 号：P315.726[天文地球—地震学]