| 广东梅子冲铅锌钨多金属矿床流体包裹体特征及成矿作用 |
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| 引用本文： | 唐一昂.广东梅子冲铅锌钨多金属矿床流体包裹体特征及成矿作用[J].地质与勘探,2017,53(2):217-226. |
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| 作者姓名： | 唐一昂 |
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| 作者单位： | 中南大学，有色金属成矿预测与地质环境监测教育部重点实验室，地球科学与信息物理学院，湖南长沙；中国黄金集团地质有限公司，北京； 广东省有色金属地质局九三二队，广东韶关；广东省有色地质勘查院，广东广州 |
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| 基金项目： | 中国地质调查局“整装勘查关键基础地质研究”计划项目（编号:12120114052701），中南大学“创新驱动项目”（编号2015CX008）资助。 |
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| 摘 要： | 梅子冲铅锌钨多金属矿床位于广东省韶关市一六矿区。野外调查和室内显微镜鉴定表明,梅子冲矿床成矿作用分为两期五阶段,第一期为矽卡岩期,可以分为早期矽卡岩阶段(A1)、晚期矽卡岩阶段(A2)和钾长石白钨矿阶段(A3);第二期为热液期,可以分为石英硫化物阶段(B1)和石英碳酸盐阶段(B2)。矿体的石英和白钨矿中含有富液相的气液两相流体包裹体,地质特征结合包裹体测温资料表明,成矿温度介于207℃~449℃,盐度为1.16%~12.4%,反映矿床形成于中-高温环境。成矿流体特征及成矿温度的演化表明,A1+A2至A3阶段的流体混合作用可能导致了白钨矿的形成,A3至B1阶段的流体混合作用可能促进了铅锌矿的形成。
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| 关 键 词： | 流体包裹体 成矿作用 矽卡岩 成矿流体 梅子冲铅锌钨多金属矿 广东 |
| 收稿时间： | 2015/10/29 0:00:00 |
| 修稿时间： | 2016/8/20 0:00:00 |
Characteristics of fluid inclusions and metallogenesis of the Meizichong Pb-Zn-W polymetallic deposit in Guangdong Province |
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| Tang Yi-ang.Characteristics of fluid inclusions and metallogenesis of the Meizichong Pb-Zn-W polymetallic deposit in Guangdong Province[J].Geology and Prospecting,2017,53(2):217-226. |
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| Authors: | Tang Yi-ang |
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| Institution: | Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education; School of Geosciences and Info-Physics, Central South University, Changsha, Hunan? Geological Corporation of China Gold Group, Beijing ; Nonferrous Metals Geological Bureau of Guangdong Province 932 Battalion, Shaoguan, Guangdong ; Guangdong Nonferrous Metals Geological Exploration Institution, Guangzhou, Guangdong |
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| Abstract: | The Meizichong Pb-Zn-W polymetallic deposit is located in the Yiliu mining area,Shaoguan,Guangdong Province.Field geological investigations and microscope characteristics suggest that the mineralization of this deposit can be divided into 2 episodes,namely skarn episode(A) and hydrothermal episode (B).The former can be subdivided into early skarn stage (A1),late skarn stage (A2) and K-feldspar-tungsten stage (A3),while the latter is subdivided into quartz-sulfide stage (B1) and quartz-carbonate stage (B2).Liquid-rich inclusions were observed in quartz and tungsten from ores.Geological characteristics and micro-thermometric data show that ore-forming temperatures range from 207℃ to 449℃,while salinities range from 1.16％ to 12.4％,indicating that the deposit was formed in a medium-high temperature environment.The fluid mixing from A1 + A2 stage to A3 stage might lead to the W precipitation and the fluid mixing from A3 stage to B1 stage might result in the Pb-Zn precipitation. |
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| Keywords: | fluid inclusions metallogenesis skarn ore-forming fluid Meizichong Pb-Zn-W polymetallic deposit Guangdong Province |
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