摘要
遵循"区域开展,面中求点"的找矿模式,在武定铁铜矿整装勘查区应用磁法进行面积性工作,确立了异常的区域。同时,根据所划分的磁异常开展音频大地电磁测深工作,划分出地下岩层的界线及埋深等情况,在含矿层位落雪组下部圈定了一个低阻地质异常体。磁法资料延拓显示低阻地质异常具有深源特性,与大地电磁测深解释剖面有较好的对应关系;进一步采用双频激发极化法对该低阻地质异常体进行验证,结果显示该异常体具有较强的极化特性。结合地质资料综合推断该异常体为铁铜矿(化)体,为地质找矿提供了可靠的地球物理证据。
We apply the prospecting model of ＂Carrying out the regional work and finding abnormal points＂. Magnetic method is used to delineate the abnormal regions in the integrated exploration of Wuding Iron-Copper Mine. Then, AMT is used to divide underground rock boundaries and buried depth on the basis of the magnetic anoma ly. At the same time we delineate the low resistivity geologic body under Luoxue Fm. Upward continuation shows that there is a good corresponding relationship between deep source characteristics of the anomaly and the AMT in terpretation profile. The dual-frequency that induced polarization provides the high polarization further. Combined with the geological data, it＇s inferred that the anomaly is Iron-Copper ore, which provides sufficient geophysical evi- dence for prospecting.
出处
《有色金属（矿山部分）》
2013年第3期38-42,共5页
NONFERROUS METALS(Mining Section）
基金
中国地质调查局地质大调查项目(1212011120640)
关键词
磁法
电法
铁铜矿
magnetic method electrical method
Iron-Copper mine
