以黔西南金矿区为例,利用GIS技术分析已知矿床(点)与各地质异常间相关性,开展找矿预测研究. 通过运用GIS技术分析已知金矿床(点)与地质线型异常和地质面型异常的空间位置关系,开展地质线型异常Buffer(缓冲区)和地质面型异常叠加分析,确定其找矿有利地段,以此为基础分析组合异常找矿有利度,进而圈定研究区一类找矿远景区15个,二类找矿远景区11个,三类找矿远景区4个,实现了找矿预测的定量化分析研究.
This paper correlates occurrences of gold deposits and geological anomalies in southwestern Guizhou u-sing GIS technology,which has been suggested as an useful approach for mineral resource prospecting. Through GIS a-nalysis of spatial relations between linear and planar anomalies of some gold deposits and occurrences,and in combina-tion with analysis of geological linear anomaly buffer and geological planar anomaly,some areas are targeted as bearing potential for further exploration. Based on that,prospecting favorability is comprehensively analyzed,leading to the de-lineation of 15 first-class prospective areas,11 second-class prospective areas,and 4 third-class prospective areas. The work has accomplished quantitative analysis of mineral resource prospecting.
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