内蒙古虎拉林金矿矿化富集规律和找矿远景评价

通过对虎拉林金矿构造控矿规律研究，认为矿区占绝对优势的浸染状矿化主要受角砾岩筒构造控制，矿化不均匀，矿体形态不规则；通过分析该角砾岩筒内角砾岩的特点，结合一般浅成、半浅成角砾岩筒的垂向分带规律，推测该角砾岩筒已剥蚀到了中下部。采用因子分析的方法，确定了该金矿的原生晕轴向分带规律，矿区深部存在着强尾晕异常叠加前缘晕异常的现象，推测深部存在隐伏矿化。由此可见虎拉林金矿总体剥蚀程度较大，但深部还存在着一定的找矿远景。

Laws of mineralization enrichment and prospect assessment in Hulalin gold deposit in Inner Mongolia

Based on the research of ore-controlling laws in Hulalin gold deposit in Inner Mongolia, the authors consider that dominate disseminated mineralization was absolutely controlled by a breccia pipe. Such mineralization is very unhomogeneous and the shape of corresponding orebodies is irregular. It was estimated that this breccia pipe was denudated to middle-bottom, on the basis of analyzing characteristics of breccia in it and combining vertical distribution laws of common hypabyssal breccia pipe. Then according to factor analysis, the authors determined axial zonality law of primary halo in this gold deposit, which showed that there was a front halo superposed by a rear halo in deep of ore district. Therefore it was presumed that there maybe exist blind orebodies in deep. The general denudation depth is quite deep in Hulalin gold deposit, whereas there are possible some prospects in deep.