宁夏贺兰山北段构造石英脉型金矿床赋存特征与成矿分析
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摘要
通过研究地质勘查资料,结合野外地质勘查,系统分析研究区内成矿构造体系对成矿的具体控制作用,并从找矿角度详细分析了研究区含金石英脉特征及含金石英脉类型。结果表明,该地区的含金石英脉多分布在北西向构造带中,成矿作用主要发生在北西向断裂的早期中低温石英脉中,石英脉严格受构造控制,富矿体应分布在主脉体其格勒井和网脉及复脉交叉位置的树龙沟—麦子井区段;在成矿类型上,其格勒井矿体为粗大石英脉型,牛头沟—梁根矿体为平行石英细脉型,树龙沟—麦子井矿体为细石英网脉型。
With the help of the geological exploration data and field geological survey, the specific ore-controlling effect on mineralization is analyzed. Characteristers of auriferous quartz veins and quartz vein type is analyzed in detail from the perspective of ore prospecting. It is fund that the gold deposit mainly exists in the low structure of quartz vein type and alteration rock type, which provides geological basis for ore prospecting. The ore bearing quartz veins in the area locate in the Northwestern trending tectonic belt. Mineralization occurs mainly in the early low temperature faulted quartz veins with Northwestern trending which are controlled seriously by structure. Ore body may be distributed in the cross location of main vein of Qigele and Shulonggou-Maizijin net. There are the following types of mineralization: Qigele large quartz vein type, Niutugou-Lianggen is fine quartz parallel vein type, and Shulonggou-Maizijing is quartz stockwork vein type.
With the help of the geological exploration data and field geological survey, the specific ore-controlling effect on mineralization is analyzed. Characteristers of auriferous quartz veins and quartz vein type is analyzed in detail from the perspective of ore prospecting. It is fund that the gold deposit mainly exists in the low structure of quartz vein type and alteration rock type, which provides geological basis for ore prospecting. The ore bearing quartz veins in the area locate in the Northwestern trending tectonic belt. Mineralization occurs mainly in the early low temperature faulted quartz veins with Northwestern trending which are controlled seriously by structure. Ore body may be distributed in the cross location of main vein of Qigele and Shulonggou-Maizijin net. There are the following types of mineralization: Qigele large quartz vein type, Niutugou-Lianggen is fine quartz parallel vein type, and Shulonggou-Maizijing is quartz stockwork vein type.
引文
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