山西五台地区壳内低速体的重力异常的研究  

STUDY OF GKAVITY ANOMALY IN CRUSTAL LOW VELOCITY ZONE IN THE WUTAI REGION

作　　者：方盛明[1] 余钦范[1] 楼海[1] 邢集善 

机构地区：[1]国家地震局地球物理勘探大队,中国地质大学,山西省地质矿产局物理探矿队

出　　处：《地震地质》1995年第2期109-113,共5页Seismology and Geology

摘　　要：运用健全的极大似然法对山西五台地区中、下地壳中存在的低密度（低速度）异常体进行了三维反演，求出该异常体的空间赋存状况，并结合浅层局部重力负异常及其它地球物理特征进行地质解释，还就其形成机制进行了讨论。This paper deals with three dimensional inversion of low density（low velocity）anomalouszone in the middle and lower crusts in the Wutai region by use of the method of robust maximumlikelibood to obtain its spatial existence for this anomalous zone and to carry out a geological in-terpretation along with shallow local negative anomaly of gravity as well as other geophysicalcharacteristics. Their mechanism has been descussed as well.

关 键 词：低波速带 重力异常 三维重力反演 山西 地震勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]