黔西南台地相区金矿构造蚀变体稀土元素特征

金属矿山 ›› 2014, Vol. 43 ›› Issue (10): 122-125.

黔西南台地相区金矿构造蚀变体稀土元素特征

郑禄林^1,2，王兰香³，王甘露¹

1.贵州大学资源与环境工程学院，贵州贵阳 550025；2.贵州省地矿局地球物理地球化学勘查院，贵州贵阳 550018； 3.贵州职业技术学院，贵州贵阳 550023

出版日期:2014-10-15 发布日期:2015-05-19
基金资助:
* “十二五”国家科技支撑计划项目(编号：2012BAB08B06)。

REE Characteristic of Structure Alteration Rocks in Tableland Lithofacies Area,Southwestern Guizhou Province

Zheng Lulin^1,2，Wang Lanxiang³，Wang Ganlu¹

1.College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China；2.Guizhou Institute of Geophysical and Geochemical Prospecting,Guiyang 550018,China；3.Guizhou Vocational Technology Institute,Guiyang 550023,China

Online:2014-10-15 Published:2015-05-19

摘要/Abstract

摘要： 对贵州西南部台地相区泥堡金矿、戈塘金矿和水银洞金矿区构造蚀变体稀土元素特征研究发现，3个金矿区构造蚀变体稀土总量富集程度由高到低依次为泥堡金矿、戈塘金矿、水银洞金矿，且含黏土质和凝灰质成分的岩石，其稀土总量高，而硅质岩、硅化灰岩和灰岩稀土总量低，轻重稀土分馏程度水银洞最高，泥堡金矿构造蚀变体岩及矿石轻重稀土分馏程度高于围岩，戈塘金矿与水银洞金矿则相反。稀土配分曲线显示，构造蚀变体成矿流体可能存在多源性，但主要与峨眉山玄武岩相关。

关键词: 构造蚀变体, 台地相区, 含矿岩系

Abstract: The REE characteristics of structure alteration rocks of Nibao gold deposit,Getang gold deposit and Shuiyindong gold deposit in tableland lithofacies area are investigated.The result shows that,the degree of ∑REE enrichment of structure alteration rocks from high to low are Nibao gold deposit,Getang gold deposit,and Shuiyindong gold deposit.The rocks containing sticky soil and lime coagulation has a higher ∑REE,but silicalite,silicified limestone and limestone have a lower ∑REE.The degree of LREE & HREE fractionating in Shuiyindong gold deposit is highest,and LREE & HREE fractionating of structure alteration rocks is higher than wall rocks in Nibao gold deposit,besides that,the phenomenon in Getang gold deposit and Shuiyindong gold deposit is opposite.The REE partition curve indicates that,the ore-forming fluid of structure alteration rocks may be multi-sourced,but mainly related to Emeishan basalt.

Key words: Structure alteration rocks, Tableland lithofacies area, Ore-bearing rock series

郑禄林, 王兰香, 王甘露. 黔西南台地相区金矿构造蚀变体稀土元素特征[J]. 金属矿山, 2014, 43(10): 122-125.

ZHENG Lu-Lin, WANG Lan-Xiang, WANG Gan-Lu. REE Characteristic of Structure Alteration Rocks in Tableland Lithofacies Area,Southwestern Guizhou Province[J]. Metal Mine, 2014, 43(10): 122-125.

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