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湘西北沧山金矿床地质特征及找矿标志
- 作者：
- 申燕元|高磊
- 作者单位：
- 益阳市地质灾害防治中心|湖南省城市地质调查监测所
基金项目：
- 湖南省矿业权价款项目(201303033)
详细信息：
- 作者简介：
- 申燕元(1988—)，女，工程师，硕士，从事地质调查与矿产勘查工作；E-mail：451966983@qq.com
- 通讯作者：
- isnull
- PDF下载
Geological characteristics and prospecting indicators of Cangshan Gold Deposit in northwest Hunan
- English Author：
- Yiyang Municipal Center for Geological Disaster Prevention and Control|Urban Geological Survey and Monitoring Institute of Hunan Province
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
沧山金矿床位于湘西北的东西向构造带中段，沅陵—益阳东西向金、锑、钨成矿带中。通过地质简测、工程揭露及样品分析等手段研究了沧山金矿床地质特征，结果表明，板溪群马底驿组紫红色板岩的层间断裂为主要的赋矿层位，V2、V1、V4、V19 4条矿脉呈近东西向—北东东向平行产出，矿石类型为含金石英脉型、含金石英（破碎）蚀变板岩型及含金蚀变角砾岩型。通过综合研究成矿地质背景、矿区地质特征及矿床地质特征，认为矿床类型属中低温构造变质热液型，围岩褪色化、硅化、黄铁矿化是重要的找矿标志。
关键词:
沧山金矿床；矿床成因；找矿标志；地质特征；马底驿组；矿床类型
Abstract:
Cangshan Gold Deposit is located in the middle part of the EW tectonic belt in northwest Hunan and the EW Yuanling-Yiyang ore-forming belt of Au,Sb and W.The geological characteristics of the Cangshan Gold Deposit are studied by means of simple geological survey,engineering exposure and sample analysis.The results show that the interlayer fault of Madiyi Formation of Banxi Group is the main ore-bearing strata,and the 4 veins of V2,V1,V4 and V19 are parallel to the EW-NEE direction.The ore types are gold-bearing quartz vein type,gold-bearing quartz(broken) altered slate type and gold-bearing altered breccia type.Based on the comprehensive study of the metal-logenic geological background,the geological characteristics of the mining area and the geological characteristics of the deposit,it is believed that the deposit type belongs to the medium-low temperature tectono-metamorphic hydrothermal type,and the fading,silicification and pyritization of the surrounding rock are important prospecting indicators.
Keywords:
Cangshan Gold Deposit;genesis of deposit;prospecting indicators;geological characteristics;Madiyi Formation;type of deposit