相山矿田游坊地区地电提取找矿预测

    The prediction of electrochemical prospecting in Youfang area of the Xiangshan orefield

    • 摘要: 为在江西相山矿田游坊地区实现找矿突破,在该区开展地电提取测量工作进行深部找矿预测。研究发现:异常明显受断裂控制,主要沿控矿断裂及断裂交汇处展布;运用聚类分析和因子分析发现各微量元素之间具有显著相关性,据此得出相应的元素组合:F1因子(Ti-V-Mo-Th-U)、F2因子(As-Pb-Sb)、F3因子(Co-Ni);铀钍比的空间分布与AMT推测基底深度呈现明显正相关关系,推测主要受火山岩厚度的控制。综合地电提取元素异常特征和相山矿田成矿规律,建立综合地质—地电化学找矿模式,并在研究区内圈定出两个相应的靶区,其中1号靶区具有良好找矿前景。

       

      Abstract: In order to make a breakthrough in prospecting in the Youfang area of the Xiangshan ore field, the authors carried out geoelectric extraction and surveying in this area for deep prospecting prediction. It is found that the anomalies are obviously controlled by the faults, and are mainly distributed along the ore-controlling faults and the intersection of the faults. Cluster analysis and factor analysis reveal that there is a significant correlation between the trace elements, thus forming the corresponding element combinations: F1 factor (Ti、V、Mo、Th、U), F2 factor (As、Pb、Sb), and F3 factor (Co、Ni). The spatial distribution of uranium-thorium ratios shows a significant positive correlation with the estimated base depth of AMT, controlled by volcanic rock thickness. The authors synthesized the abnormal features of geoelectrically extracted elements and the mineralization regularity of the Xiangshan ore field, established a comprehensive geological-geoelectrochemical prospecting model, and delineated two corresponding targets in the study area, of which No.1 target area has good prospecting prospect.

       

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