摘要
通过变比例尺的高精度磁测在新疆库兰矿区快速准确地圈定了重点磁异常区。对重点异常区设计了高精度磁法和电阻率层析成像剖面精测,结合岩石的磁性和电性参数对重点精测剖面比对,发现了矿区内重要的隐伏断裂构造和侵入岩体,为寻找有利成矿带提供了地球物理依据。对比邻近野马泉金矿区成矿类型发现,控矿岩体为闪长玢岩体,因此推测本矿区内的高磁异常带为隐伏的含矿闪长玢岩体成矿带。通过后期探槽的揭露发现成矿带矿化明显,深部找矿潜力巨大。
The method of surface high-precision magnetic measurement in different scale is applied in Kulan gold deposit. 5 high accuracy survey lines including high precision magnetic measurement and resistivity tomography method are designed in this area and an important structural belt and intrusive rock are found by analyzing the rock samples＇ magnetic and electrical parameters, which is a key to metallogenic prediction. It indicates that this structural belt and intrusive rock is a metallogenic belt by comparing with Yemaquan gold deposit＇ s metallogenic type which is structural ore-control and its ore-control rock is dioritic porphyrite. It predicts that the high magnetic anomaly in Kulan gold deposit is caused by this dioritic porphyrite rock. This prediction is proved in late trenching exploration and mineralization in this metallogenic belt is obvious, which indicates there is a good potential in this arca.
出处
《地质与勘探》
CAS
CSCD
北大核心
2009年第6期683-691,共9页
Geology and Exploration
基金
国家"十一五"科技支撑计划项目课题"典型覆盖区金属矿综合地球物理定位预测技术开发与应用"与"新疆青河地球物理勘探"项目联合资助
关键词
高精度磁法
变比例尺
隐伏
电阻率层析成像
high accuracy magnetic prospection, different scale, resistivity tomography, gold mine exploration, Kulan area
