| 芙蓉锡矿方解石稀土元素地球化学特征及其对成矿流体来源的指示 |
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| 引用本文： | 双燕,毕献武,胡瑞忠,彭建堂,李兆丽,李晓敏,袁顺达,齐有强.芙蓉锡矿方解石稀土元素地球化学特征及其对成矿流体来源的指示[J].矿物岩石,2006,26(2):57-65. |
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| 作者姓名： | 双燕 毕献武 胡瑞忠 彭建堂 李兆丽 李晓敏 袁顺达 齐有强 |
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| 作者单位： | 1. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵州,贵阳,550002;中国科学院研究生院,北京,100039
2. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目（编号：KZCX3-SW.-125）;国家自然科学基金项目（编号：40373020）,中国科学院“西部之光”人才计划项目;中国科学院“百人计划”项目 |
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| 摘 要： | 方解石是芙蓉锡矿田重要的脉石矿物。根据芙蓉矿田白蜡水矿区和狗头岭矿区不同产状(云英岩型、蚀变岩体型和构造蚀变带-矽卡岩型)矿石中方解石稀土元素地球化学特征研究表明:两矿区成矿期热液方解石具有两种稀土模式,LREE(轻稀土元素)富集型和相对平坦型。其中,蚀变岩体型方解石所具有的相对平坦型稀土模式代表了LREE带出后残余热液的稀土模式特征,而云英岩型和构造蚀变带—矽卡岩型方解石的LREE富集型稀土模式与骑田岭新鲜花岗岩类似,表明成矿过程中没有LREE明显带出的迹象,残余热液继承了岩浆期后热液的特征。成矿流体来源于骑田岭花岗岩岩浆期后热液。
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| 关 键 词： | 芙蓉锡矿 方解石 稀土元素 成矿流体 |
| 文章编号： | 1001-6872（2006）02-0057-09 |
| 收稿时间： | 2006-01-19 |
| 修稿时间： | 2006-04-05 |
REE GEOCHEMISTRY OF HYDROTHERMAL CALCITE FROM TINPOLYMETALLIC DEPOSIT AND ITS INDICATION OF SOURCE OF HYDROTHERMAL ORE-FORMING FLUID |
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| SHUANG Yan,BI Xian-wu,HU Rui-zhong,PENG Jian-tang,LI Zhao-li,LI Xiao-min,YUAN Shun-da,QI You-qiang.REE GEOCHEMISTRY OF HYDROTHERMAL CALCITE FROM TINPOLYMETALLIC DEPOSIT AND ITS INDICATION OF SOURCE OF HYDROTHERMAL ORE-FORMING FLUID[J].Journal of Mineralogy and Petrology,2006,26(2):57-65. |
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| Authors: | SHUANG Yan BI Xian-wu HU Rui-zhong PENG Jian-tang LI Zhao-li LI Xiao-min YUAN Shun-da QI You-qiang |
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| Institution: | 1. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Science,Guiyang 550002,China; 2. Graduate School of Chinese Academy of Science,Beijing 100039,China |
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| Abstract: | Calcite is the dominant gangue mineral in the Furong tin-polymetallic deposit.The calcites associated with greisen type ore,altered rock type ore and skarn type ore from Bailashui and Goutouling mineral district,are characterized by two types of REE distribution patterns,LREE-enriched pattern and flat REE pattern.LREE-enriched pattern of calcites accompanying greisen type ore and skarn type ore are very similar to those of Qitianling granite.It implied that this REE behavior of calcite inherited from the characteristics of LREE-enriched magmatic hydrothermal fluid derived from the Qitianling granite plution.The calcites associated with altered rock type ore with flat REE distribution patterns indicate LREE of the hydrothermal fluid extracted during the alteration or mineralization process.Therefore,the data of calcites suggest a magmatic source for the or-forming hydrothermal fluid. |
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| Keywords: | Furong tin-polymetallic deposit calcite rare earth element ore-forming hydrothermal fluid |
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