综合地球物理方法在大庙铁矿斜长岩杂岩体中的应用  

Application of integrated geophysics method in Damiao anorthosite complex

作　　者：张鲁新[1,2] 张作伦[1,2] 曾庆栋[1] 刘建明[1] 叶杰[1] 于昌明[1] 卢回忆[1,2] 覃峰[1,2] 张伟庆[1,2] 

机构地区：[1]中国科学院矿产资源研究重点实验室,中国科学院地质与地球物理研究所,北京100029 [2]中国科学院研究生院,北京100049

出　　处：《中国矿业》2008年第7期96-99,共4页China Mining Magazine

基　　金：国家重点基础研究发展规划(2006CB403507)

摘　　要：大庙斜长岩杂岩体中赋存有丰富的钒钛磁铁矿矿体。本研究采用亚米级差分GPS准确确定出地表已知矿体出露位置;利用氦光泵磁力仪(HC-95a)在平面上确定出3条规模较大高磁异常带,并确定异常带的延伸方向;借助EH4电磁成像系统解析主要高磁异常带(矿化带)向地下深部延伸情况。三种物探方法在研究区的联合应用,清晰地展现出研究区成矿潜力,达到了综合找矿、评价目的。本次工作说明,三种物探方法地结合,可以作为快速寻找、评价钒钛磁铁矿矿体的推广性方法。The Damiao anorthosite complex is rich in vanadium titanomagnetite ore bodies. In this case, we determined the position of known ore body on the earth＇s surface correctly with the differential GPS in sub-meter level, discovered three large scale magnetic anomalies with the Helium optically-pumped magnetometer, confirmed the directions of those stretch, and realized how the main high-magnetic anomalies ex- tended underground with the EH4-electromagnetic image system. By the unity of the three geophysics methods, the potential of mineral resources was showed clearly, and the purpose of prospecting and estimate was achieved. This case shows that the unity of the three geophysics methods can be a generalized method of quickly-prospecting and estimating the vanadium titanomagnetite ore bodies.

关 键 词：大庙斜长岩杂岩体 磁铁矿 差分GPS 氦光泵磁力仪 EH4 

分 类 号：P631.2[天文地球—地质矿产勘探] P631.3[天文地球—地质学]