| 贵州丹寨卡林型金矿床地球化学特征 |
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| 引用本文： | 李红阳,高振敏,杨竹森,罗泰义,饶文波.贵州丹寨卡林型金矿床地球化学特征[J].地质科学,2002,37(1):1-7. |
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| 作者姓名： | 李红阳 高振敏 杨竹森 罗泰义 饶文波 |
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| 作者单位： | 1. 石家庄经济学院资源与环境工程系, 石家庄, 050031;2. 中国科学院地球化学研究所矿床地球化学开放研究室, 贵阳, 550002 |
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| 基金项目： | 中国科学院重大项目 (编号 :KZ 95 1 A1 40 4 0 2 )，王宽诚教育基金，矿床地球化学开放基金 (编号 :980 41 8)联合资
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| 摘 要： | 岩石化学及微量元素研究表明,从未蚀变层纹状灰岩到强硅化灰岩,SiO2、Au、As和Sb含量逐渐增高,CaO、CO2和MgO含量逐步降低;在强碳酸岩化灰岩中,CaO和CO2含量增高,SiO2含量降低;各类蚀变与矿化岩石的稀土含量和配分模式与未蚀变层纹状灰岩总体基本一致.流体包裹体资料指示,成矿溶液为富Cl型,爆裂温度为200～338℃.同位素研究揭示,δ34S硫化物=(16.078～20.48)×10-3,δ18O=(19.4～20.3)×10-3,δD=(-110～-47)×10-3,206Pb/204Pb=18.288～19.202,207Pb/204Pb=15.685～15.793,208Pb/204Pb=38.366～40.401.成矿流体以大气降水为主,成矿物质以壳源为主,仅有少量幔源组分的参与.
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| 关 键 词： | 卡林型金矿 地球化学 丹寨金矿床 |
| 收稿时间： | 2000-07-31 |
| 修稿时间： | 2000年7月31日 |
GEOCHEMICAL FEATURES OF DANZHAI CARLIN-TYPE GOLD DEPOSIT, GUIZHOU PROVINCE |
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| Li Hongyang\,Gao Zhenmin\,Yang Zhusen\,Luo Taiyi\,Rao Wenbo\.GEOCHEMICAL FEATURES OF DANZHAI CARLIN-TYPE GOLD DEPOSIT, GUIZHOU PROVINCE[J].Chinese Journal of Geology,2002,37(1):1-7. |
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| Authors: | Li Hongyang\ Gao Zhenmin\ Yang Zhusen\ Luo Taiyi\ Rao Wenbo\ |
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| Institution: | 1. Department of Resources and Environment Engineering, Shijiazhuang University of Economics, Shijiazhuang 050031;2. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002 |
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| Abstract: | The major and trace element data show that SiO2, Au, As and Sb contents increase progressively with CaO and MgO contents decreasing gradually from unaltered to the most intensely silicified and mineralized limestones and that SiO2 contents decrease with CaO and CO2 increasing in intensely carbonated limestones. The REE contents and chondrite normalized patterns of the altered and mineralized rocks are largely consistent with those of the unaltered host rocks(laminated limestone). The fluid inclusion data indicate that the ore-forming fluids are of the Cl-rich type and that filling temperatures of fluid inclusions in the quartz and calcite are about 200～338℃. The isotopic data show that the δ 34 S values ranging from 16.078×10-3 to 20.48×10-3, the δ18O and δ D values are(19.4～23.0)×10-3 and(-110 ～-47)×10-3, respectively, 206Pb/ 204Pb, 207Pb/ 204Pb and 208Pb/ 204Pb falling within the ranges of 18.288～19.202, 15.685～15.793 and 38.366～40.401 respectively. The medium water of ore fluids was dominantly of meteoric origin. The ore-forming materials were predominately of crust source with small amounts of mantle component. |
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| Keywords: | Carlin type gold deposit Geochemistry The Danzhai gold deposit |
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