| 黔西南水银洞金矿床流体包裹体研究 |
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| 引用本文： | 陈本金,温春齐,霍艳,曹盛远,宋发治,周玉.黔西南水银洞金矿床流体包裹体研究[J].矿物岩石地球化学通报,2010,29(1):45-51. |
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| 作者姓名： | 陈本金 温春齐 霍艳 曹盛远 宋发治 周玉 |
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| 作者单位： | 1. 成都理工大学,成都,610059;贵州省地震局,贵阳,550001
2. 成都理工大学,成都,610059 |
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| 基金项目： | 矿物学岩石学矿床学国家重点(培育)学科建设项目(SZD0407)资助 |
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| 摘 要： | 水银洞金矿床是黔西南典型的特大型卡林型金矿床之一。但其成矿流体来源尚有争议。通过对水银洞金矿床脉石英和方解石中流体包裹体的温度与压力、盐度与密度、包裹体成分和包裹体H和O同位素等方面的研究,指出水银洞卡林型金矿床成矿流体属中低温(96.7~220℃)、低盐度(NaCl)0.635%~9.861%,平均值为4.282%±2.260%、中等密度(0.725~0.977 g/cm3,平均值为0.910±0.061 g/cm3);脉石英阶段流体水化学类型属Cl--Na+型或SO42--Cl-Na+型,方解石阶段属SO42--Cl--Ca2+型。成矿流体压力可能为高-超高压(160±40 MPa);成矿流体主要是大气降水形成的地下热水,可能有部分岩浆热液的掺入。
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| 关 键 词： | 流体包裹体 成矿流体 卡林型金矿床 贵州水银洞 |
Study on Fluid Inclusion of the Shuiyindong Gold Deposit,Southwestern Guizhou |
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| CHEN Ben-jin,WEN Chun-qi,HUO Yan,CAO Sheng-yuan,SONG Fa-zhi,ZHOU Yu.Study on Fluid Inclusion of the Shuiyindong Gold Deposit,Southwestern Guizhou[J].Bulletin of Mineralogy Petrology and Geochemistry,2010,29(1):45-51. |
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| Authors: | CHEN Ben-jin WEN Chun-qi HUO Yan CAO Sheng-yuan SONG Fa-zhi ZHOU Yu |
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| Institution: | CHEN Ben-jin1,2,WEN Chun-qi1,HUO Yan1,CAO Sheng-yuan1,SONG Fa-zhi1,ZHOU Yu11.Chengdu University of Technology,Chengdu,610059,China2.Earthquake Administration of Guizhui Province,Guiyang 553000,China |
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| Abstract: | The Shuiyindong gold deposit is one of the largest typical Carlin-type gold deposits. The gold deposit locates at about 20 km NW of the downtown Zhenfeng County in southwestern Guizhou Province, China. This paper studied temperature, pressure, salinity, composition and oxygen-hydrogen isotope compositions of fluid inclusions in quartz and calcite inclusions in veins of the gold deposit. Study results indicated that the ore-forming fluid of the Shuiyindong gold deposit belongs to low-medium temperature (96.7～220℃), low salinity (14.282%±2.260 % of NaCl) and medium density (0.910 ±0.061 g/cm~3) fluid. The hydrochemical type of the fluid inclusions found in quartz inclusions belongs to Cl~--Na~+ or SO_4~(2-)- Cl- Na~+ type, while the hydrochemical type of the fluid inclusions found in calcite inclusions belongs to SO_4~(2-)- Cl~--Ca~(2+) type. The ore-forming fluids with a pressure from high to super high (160±40 Mpa) mainly originated from subsurface hydrothermal water, probably, immingled with certain parts of magmatic-hydrothermal water. |
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| Keywords: | fluid inclusions ore-forming fluid Shuiyindong gold deposit southwestern Guizhou |
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