利用航磁资料研究菏泽震区深部构造  

RESEARCH ON DEEP STRUCTURES OF HEZE EARTHQUAKE REGION USING AIRBONE-MAGNETIC DATA

作　　者：张先[1] 贺为民[1] 虎喜凤[1] 沈京秀 李长发 赵丽[1] 

机构地区：[1]国家地震局地球物理勘探大队

出　　处：《华北地震科学》1993年第3期30-35,共6页North China Earthquake Sciences

摘　　要：利用航磁资料和三维磁性层反演理论,对菏泽震区的航磁资料进行了数据处理,计算出震区枧磁化强度分布图、基底磁性界面埋深图和居里等温面埋深图。结果显示东濮凹陷基底磁性界面深达12km,下部居里等温面上隆,凹陷内被弱磁性物质填充。地震发生在凹陷附近视磁化强度、基底磁性界面、居里等温面的变异带上。In this paper the airbone-magnetic data of Heze earthquake region is processed and the distribution of apparent specific magnetic moment, the buried depth of basement magnetic interface and the buried depth of Curie isotherm surface in this region are calculated using airbonemagnetic data and inversion theory for 3D magnetic straitum. The results show that the depth of basement magnetic interface in Dongpu Depression is 12km deep, the lower Curie isotherm surface uplifts and the depression interior is filled by weak magnetic mass. Earthquakes occured on the mutation zones of apparent specific magnetic moment, the basement mgnetic interface and Curie isotherm surface around the Depression.

关 键 词：地震 菏泽震区 深部构造 航磁资料 

分 类 号：P315.2[天文地球—地震学]