基于广域电磁法的大红山铁矿深部找矿预测
Deep Prospecting Prediction of Dahongshan Iron Mine Based on Wide-area Electromagnetic Method
吴秀红 1杨旭山 1周天贵 1吕锐1
作者信息
摘要
随着生产规模的不断扩大,大红山铁矿隐伏的矿产资源危机已逐渐显现,深部是本区探矿突破的重要方向.在综合研究大红山铁铜矿的地质条件下,采用广域电磁法技术,以已查明主矿体电性分布特征与磁感强度为参照,结合地质、钻探、物探等多方面的信息,探测地下3 000m以内地层、断裂带分布情况.经解译,排除非矿致异常,圈定4处异常区为找矿有利区;划分了18条断裂构造带,其中与工区已知对应的断裂构造4条,未控制或隐伏构造14条.
Abstract
With the continuous expansion of the scale of production,the hidden crisis of mineral re-sources in Dahongshan Iron Mine has gradually emerged,and the deep part is an important direction for the breakthrough of prospecting in this area.Under the comprehensive study of the geological conditions of Da-hongshan iron-copper mine,the wide-area electromagnetic method is used to detect the distribution of stra-ta and fault zones within 3 000 m underground by referring to the electrical distribution characteristics and magnetic induction intensity of the identified main ore bodies,combined with geological,drilling,geophysi-cal and other information.After interpretation,the non-ore-induced anomalies are excluded,and four ab-normal areas are delineated as favorable areas for prospecting.A total of 18 fault structural belts were divid-ed,including 4 known fault structures corresponding to the work area and 14 uncontrolled or concealed structures.
关键词
深部探矿/广域电磁法/找矿预测Key words
deep prospecting/wide-area electromagnetic method/prospecting prediction引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据