| 熊廷沙,杨光忠,张家熙.贵州从江地虎铜金矿成矿过程片段形迹的露头显示[J].贵州地质,2025,42(4):446-451 |
| 贵州从江地虎铜金矿成矿过程片段形迹的露头显示 |
| Outcrop Indication of Fragment Trace During Ore-forming Process of Dihu Copper-gold Deposit in Congjiang，Guizhou Province |
| 投稿时间：2025-09-22 |
| DOI： |
| 中文关键词: 蚀变岩型铜金矿 磁铁硅化石英岩 成矿过程形迹记录 贵州从江 |
| 英文关键词:Altered rock type copper-gold deposit Magnet silicified quartzite Record of metallogenic process trace Congjiang,Guizhou province |
| 基金项目:贵州重晶石找矿预测与评价科技创新人才团队(黔地矿科合〔2024〕TD02号)。 |
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| 中文摘要: |
| 普遍认为从江地虎-翁浪铜金多金属矿，系环摩天岭花岗岩穹窿在晚元古界下江群(丹洲群)底部发育的滑脱构造控矿的结果，为典型的蚀变岩型金多金属矿，并常用以指导黔东南天柱-锦屏-黎平地区石英脉型金矿深部蚀变岩型金矿的预测分析。深入分析研究地虎-翁浪蚀变岩型金多金属矿的成矿过程的地质记录，具有重要预测找矿指导意义。通过地质调查研究，尤其是地虎铜金矿，在新修的公路边坡上，可清楚看到滑脱构造控制的上部硅化蚀变带内，含矿热液从下部向上迁移的通道及其热液对两侧围岩(原岩——千枚岩)蚀变改造形成的拖尾状硅化石英岩透镜体，再上依次为似层状硅化石英岩和磁铁硅化蚀变石英岩铜金矿(化)层带，最后为发端于磁铁硅化蚀变岩(层)带内的无根石英脉，由此构成滑脱构造体系下多层硅化蚀变矿化过程的一个片段形迹地质记录。这有助于点上及区域蚀变岩型多金属矿的成矿过程理解、控矿分析和预测找矿，具有较重要的地质意义。 |
| 英文摘要: |
| It generally believed that Dihu-Wenglang copper-gold polymetallic deposit in Congjiang is the result of detachment fault ore control of Huanmotianling granite dome developed in the bottom of Xijiang group(Danzhou group)，Late Proterozoic，it’s a typical altered rock type gold polymetallic deposit，usually be used to guide the prediction of deep altered rock type gold deposit of quartz vein type gold deposit in Tianzhu-Jinping- Liping area of southeast Guizhou，it’s very important for the prospecting predictionThrough the geological survey，especially in the new built road slope of Dihu copper-gold deposit，in the upper silicified alteration belt which is controlled by detachment fault，the channel of ore bearing hydrothermal solution migrant from bottom to top and trailing shape silicified quartz lenticle formed by which the two side wall rock(protolith-phyllite)are altered by the hydrothermal solution can be found clearly，further top are stratiform-like silicified quartzite and magnet silicified altered quartzite copper-gold(metallogenic)belt successively，finally is rootless quartz vein from magnet silicified altered quartzite copper-gold(metallogenic)beltIt will be helpful for understand the metallogenic process，ore control analysis and prospecting prediction of altered polymetallic deposit in the spots and relative area |
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