| 郭永强,丁园,赵志伟,蔺鹏飞,邓福理.内蒙古巴林左旗东山湾地区钨钼银多金属成矿地质特征研究[J].矿产勘查,2021,12(9):1923-1930 |
| 内蒙古巴林左旗东山湾地区钨钼银多金属成矿地质特征研究 |
| Study on W-Mo-Ag polymetallic features in Dongshanwan area of Balin Left Bannar of Inner Mongolia |
| 投稿时间：2020-07-16 |
| DOI： |
| 中文关键词: 巴林左旗东山湾地区 钨钼多金属矿床 中高温中浅成环境 成矿特征 |
| 英文关键词: Dongshanwan area of Balin Left Bannar W-Mo polymetallic deposit mid-high temperature and meso-epithermal environment metallogentic features |
| 基金项目: |
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| 中文摘要: |
| 内蒙古巴林左旗是我国重要的钨钼银多金属成矿带。在野外地质调查和室内分析测试基础上，对巴林左旗东山湾地区钨钼银多金属成矿特征进行了研究。结果表明，北西向断裂构造是主要的控矿和容矿构造；围岩蚀变发育，平面上和垂向上具明显的蚀变分带。硅化、绢英岩化与钨、钼矿化关系密切，钠长石化、绿泥石化、碳酸盐化与银矿化相关。钨矿多分布于绢英岩化花岗斑岩中；钼矿主要分布于Ⅰ矿带早白垩世花岗斑岩体的中心地带，产于早白垩世花岗斑岩岩株的中深部硅质充填的构造带中；银矿多分布于绢英岩化板岩中。成矿作用由早到晚可划分氧化物与硫化物两个成矿阶段。成矿温度由早期到晚期逐渐降低，属于中高温环境。成矿压力、成矿深度为中浅成环境。 |
| 英文摘要: |
| On the base of field investigation and indoor analyzing tests. W-Mo polymetallic features in Dongshanwan area of Balin Left Bannar of Inner Mongolia are studied. The results show that N-W direction faults are main ore-controlling and ore-hosting structures. Rock lateralization develops and have obvious zoning features horizontally and vertically. Silici.cation and sericitization are closely related with W-Mo mineralization while albitization, chloritization and carbonatization are related with Ag mineralization. W mineralization mainly occurs in sericitization-silification granite porphyry and Mo mineralization mainly distributes in the central of early Cretaceous granite porphyry in ore beltⅠand occurs siliceous tectonic zone of early Cretaceous middle-deep granite-porphyry stock. Ag mineralization mainly distribute in sericitization-silification granite porphyry or slate. Mineralization process can be divided into early period oxide stage and later sulfide stage. Ore-forming temperature is middle to high. It decreases from early metallogenic period to later period. Ore-forming pressure and depth indicate middle to shallow environment. |
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