【作者】 刘光海；

【Author】 Liu Guanghai (Institute of Mineral Deposits,Chinese Academy of Geological Sciences)

【机构】 矿床地质研究所；

【摘要】 <正>本区的重力异常与花岗岩体及断裂构造有很好的对应关系,所有出露的花岗岩体都与重力异常低相对应。区内的内生金属矿产与断裂构造的展布及岩浆活动有着密切关系,特别是和岩体的关系更为密切。其中灵山岩体为本区已知的W、Sn、Pb综合矿床。因此,根据重力异常应用人机对话的方法不仅可以推断岩体的规模、形态和深部产状,而且对于深入研究矿床成因及找矿方向亦是非常有意义的。更多还原

【Abstract】 A good correlationship of gravity anomalies to granite bodies and fault structures in the study area is observed.All the exposed bodies are found to be in conformity with the gravity lows.The endogenic metallic deposits in this area are closely related to the fault structures and magmatic activities. The Lingshan rock body,for example,is known as the parent rock of a W-Sn-Pb polymetallic deposit.Therefore,a discussion of the size,form,and deep occurrence of granite bodies in terms of gravity anoamlies is of significance both in the study of metallogenic environment and in ore prospecting. Following a discussion of the geological setting of the granite bodies in this area,this paper presents an interactive technique which can gives the spatial analysis of potential field.Based on the gravity survey on the scale of 1:200,000,this technique has been applied to such rook bodies as Lingshan, Damaoshan,and Fuquanshan with the geological interpretation given.Suggestions are also made for the further reconnaissance and ore prospecting in this area.更多还原