| 印度尼西亚索林帕萨铜多金属矿成矿流体地球化学和矿床成因 |
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| 引用本文： | 梁业恒,孙晓明,翟伟,李爱菊,徐莉,汤倩,梁金龙.印度尼西亚索林帕萨铜多金属矿成矿流体地球化学和矿床成因[J].地质与勘探,2009,45(1). |
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| 作者姓名： | 梁业恒 孙晓明 翟伟 李爱菊 徐莉 汤倩 梁金龙 |
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| 作者单位： | 1. 中山大学地球科学系,广州,510275
2. 中山大学地球科学系,广州,510275;中山大学有色金属华东地勘局隐伏矿床勘查研究院,南京,210007 |
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| 基金项目： | 江苏省有色金属华东地质勘查局委托研究项目(编号:32110-4206243)资助 |
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| 摘 要： | 文章对印度尼西亚索林帕萨铜多金属矿含矿石英脉流体包裹体进行了显微测温与氢氧同位素测定,发现石英脉中含有3种类型的流体包裹体:A.纯液相水溶液包裹体;B.富液相气液两相水溶液包裹体和C.富气相气液两相水溶液包裹体,其中以B类为主.三种流体包裹体同时出现,表明石英脉形成时流体可能发生过沸腾作用.成矿流体均一温度为198.9℃～356.4℃,冰点温度为-0.6℃～-2.3℃,相应流体盐度变化范围为0.94%～3.76%NaCleq..质谱测定显示成矿流体的氢氧同位素组成分别为占δDH2O=-61.0‰～-81.0‰,δ18OH2O=-3.08‰～0.17‰,表明成矿流体主要为大气降水,不排除有少量岩浆水加入.根据成矿流体地球化学与围岩蚀变类型,初步推断该矿属于酸性-硫酸盐(高硫)型的浅成低温多金属矿床,沸腾作用是成矿物质沉淀的主要因素.
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| 关 键 词： | 流体包裹体 浅成低温热液矿床 沸腾作用 索林帕萨矿区 印度尼西亚 |
Geochemistry of Ore-Forming Fluids and Genesis of Soripesa Cu-Polymetallic Deposit in Indonesia |
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| LIANG Ye-heng,SUN Xiao-ming,ZHAI Wei,LI Ai-ju,XU Li,TANG Qian,LIANG Jin-long.Geochemistry of Ore-Forming Fluids and Genesis of Soripesa Cu-Polymetallic Deposit in Indonesia[J].Geology and Prospecting,2009,45(1). |
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| Authors: | LIANG Ye-heng SUN Xiao-ming ZHAI Wei LI Ai-ju XU Li TANG Qian LIANG Jin-long |
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| Institution: | 1 Department of Earth Sciences;Sun Yat-Sen University;Guangzhou 510275;2 Hidden Deposits Research Institute of Sun Yat-sen University & Eastern China Geological & Mining Organization for Non-ferrous Metals;Nanjing 210007 |
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| Abstract: | Three types of fluid inclusions were recognized in the mineralized quartz veins from Soripesa Cu-polymetallic deposit in West Nusa Tenggara,Indonesia.They are: A.liquid aqueous inclusions,B.liquid-rich two-phase fluid inclusions,and C.gas-rich two-phase inclusions.The type B predominates in the fluid inclusions.Coexisting of different types of inclusions with greatly-varied vapor/liquid rations implies that boiling might have occurred during formation of the mineralized quartz veins.The ice melting temperat... |
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| Keywords: | fluid inclusions epithermal hydrothermal deposit boiling Soripesa Cu-polymetallic deposit Indonesia |
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