| 原莲肖,任涛,李英,樊忠平.陕西山阳县夏家店金矿物质组分和成矿流体特征及成矿物质来源探讨[J].地质与勘探,2007,(5):68-73 |
| 陕西山阳县夏家店金矿物质组分和成矿流体特征及成矿物质来源探讨 |
| COMPONENT, ORE-FORMING FLUIDS AND MATERIAL SOURCES IN THE XIAJIADIAN GOLD DEPOSIT OF SHANYANG COUNTY, SHAANXI |
| 修订日期：2006-07-31 |
| DOI： |
| 中文关键词: 夏家店金矿 物质组成 成矿流体 物质来源 |
| 英文关键词: Xiajiadian gold deposit, component, ore - forming fluid, material source |
| 基金项目: |
| 原莲肖 任涛 李英 樊忠平 |
[1]西北有色地质研究院,西安710054 [2]西北有色地勘局713总队,商洛712000 [3]中国地质大学(武汉)
资源学院,武汉430000 |
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| 中文摘要: |
| 夏家店金矿主要含矿岩石是由泥、铁、炭硅质板岩及硅质岩、硅化碎块组成的角砾岩,与金矿化关系密切的围岩蚀变为硅化.金主要以裂隙金为主,其次是粒间金,包裹金较少;金的独立矿物是自然金.成矿流体包体比较发育,随着成矿作用的进行,成矿温度逐渐降低,成矿溶液由H2O-CO2-KCl为主的热液体系向以H2O-CO2-NaCl为主的热液体系转化.金主要来源于炭硅质板岩. |
| 英文摘要: |
| Main ore -bearing rocks in the Xiajiadian gold deposit are breccias which are composed of mud -iron - carbon siliceous slate, siliceous rock and silicated fragment. Silicifacation are close wallrock alteration with gold mineralization. Gold occurs mainly as fissure fillings, subordinately as in- tergranular grains, and seldom as inclusions. Gold exists as natural gold. There are abundant of fluid inclusions. Ore - forming temperature decreases along with mineralization. Ore - forming fluids change from KCl - CO2 - NaCl system to H2O - CO2 - NaCl system. Ore - forming condition is weakly reductive, and gold is derived from carbon siliceous slate. |
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