CAJ | 학술논문

对龙门店银矿K4矿体Au、Ag、Cu、Pb、Zn、W、Mo、Hg、As、Sb、Bi等11种微量元素的原生晕特征进行研究，为矿体深部成矿预测提供理论依据。微量元素统计学分析表明，Pb、Zn可作为矿体主要的近矿指示元素，矿体的成矿过程具有多期次叠加的特点；分析K4矿体原生晕地球化学参数垂向变化规律，发现矿体前缘和中部分别表现出明显的尾晕指示元素强异常和前缘晕指示元素强异常；计算得到矿体自上而下的轴向分带序列为W—Mo—Au—Hg—Cu—As—Bi—Zn—Ag—Sb—Pb，出现了明显的“前尾晕共存”和“反向分带”现象。依据上述K4矿体原生晕特征，建立了矿体原生叠加晕模型，并预测矿体深部存在规模较大的盲矿体，909 m标高以下有较大的找矿潜力。
대룡문점은광K4광체Au、Ag、Cu、Pb、Zn、W、Mo、Hg、As、Sb、Bi등11충미량원소적원생훈특정진행연구，위광체심부성광예측제공이론의거。미량원소통계학분석표명，Pb、Zn가작위광체주요적근광지시원소，광체적성광과정구유다기차첩가적특점；분석K4광체원생훈지구화학삼수수향변화규률，발현광체전연화중부분별표현출명현적미훈지시원소강이상화전연훈지시원소강이상；계산득도광체자상이하적축향분대서렬위W—Mo—Au—Hg—Cu—As—Bi—Zn—Ag—Sb—Pb，출현료명현적“전미훈공존”화“반향분대”현상。의거상술K4광체원생훈특정，건립료광체원생첩가훈모형，병예측광체심부존재규모교대적맹광체，909 m표고이하유교대적조광잠력。
The primary halo characteristics of eleven kinds of trace elements ( Au, Ag, Cu, Pb, Zn, W, Mo, Hg, As, Sb, Bi) in K6 orebody of the Longmendian silver deposit were studied in order to provide theoretical basis for deep orebody prediction. Pb, Zn can be used as the important indicator elements in the prediction of K4 deep orebody, and ore?forming process has superimposed metallogenic features, as shown by the results of statistical analysis. Through the analysis of the variation law of primary halo geochemical parameters of the orebody, the authors found that the front of the orebody exhibits an obvious strong anomaly of tail halo indicator elements, where?as the center of the orebody exhibits an obvious strong anomaly of frontal halo indicator elements. Axial zoning sequence of the indicator elements is described as follows:W-Mo-Au-Hg-Cu-As-Bi-Zn-Ag-Sb-Pb, assuming obvious frontal halo and tail halo coexisting phenomena and axial zoning characteristica. It is therefore considered that there is a quite large?sized blind orebody in the depth and there is excellent mineralization under 909m level.