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冀东七拨子金银多金属矿区控矿因素及找矿标志
- 任小武|张继林|缪广
- 作者单位：
- 中金黄金股份有限公司|中国黄金集团有限公司|北京金有地质勘查有限责任公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 任小武（1971—），男，陕西泾阳人，高级工程师，从事矿产资源勘查、地质勘查技术方法与应用工作；北京市东城区安定门外大街9号，中金黄金股份有限公司，100011；E-mail:623006092@qq.com
- 通讯作者：
- isnull
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Geological characteristics and prospecting indicators of Qibozi Gold-Silver Polymetallic District,Eastern Hebei
- English Author：
- Zhongjin Gold Corporation Limited|China National Gold Group Co.,Ltd.|Beijing Jinyou Geological Exploration Limited Liability Company
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
七拨子金银多金属矿床为冀东矿集区新发现的岩浆热液型矿床，矿区共发现10条矿体，矿体赋存于层间破碎带及断裂中，具有分支复合、尖灭再现特征，均为破碎蚀变岩型。高于庄组地层,北东向（北东东向）、东西向断裂，燕山期岩浆岩对矿区成矿具有明显的控制作用，为矿区重要的控矿因素。高于庄组三、四段，北东向、东西向断裂及断裂转折部位，燕山期侵入岩，硅化、绢云母化、矽卡岩化、黄铁矿化等为矿区重要的地质找矿标志；Ag、Au、As、Mo、Mn等元素异常，低阻高极化异常等为矿区重要的地球化学、地球物理找矿标志。
关键词:
控矿因素；找矿标志；矿床地质特征；七拨子金银矿区；冀东
Abstract:
Qibozi Gold-Silver Polymetallic Deposit is a newly discovered magmatic hydrothermal fluid deposit in Eastern Hebei high ore concentration area.10 ore bodies in the district have been discovered.The ore bodies occur in the interlayer fragmentation zone and fractures,displaying the characteristics of branching and reuniting,pinching out and reappearance.All of them are fractured altered rock type.Gaoyuzhuang Formation,NE(NEE) and EW faults and Yanshanian magmatic rocks evidently control the mineralization in the district and are important ore-controlling factors.The third and fourth member of Gaoyuzhuang Formation,NE and EW faults and their turnings,Yanshanian intrusion rock,silicification,sericitization,skarnization,pyritization and so on are important prospecting indicators in the area;Ag,Au,As,Mo,Mn element anomalies,low resistance and high polarization anomalies and so on are important geochemical and geophysical prospecting indicators in the area.
Keywords:
ore-controlling factor;prospecting indicator;deposit geological characteristics;Qibozi Gold-Silver District;Eastern Hebei
