| 赣南河草坑铀矿田蚀变特征 |
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| 引用本文： | 王凤岗,范洪海,何德宝,顾大钊.赣南河草坑铀矿田蚀变特征[J].铀矿地质,2009,25(3):150-158. |
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| 作者姓名： | 王凤岗 范洪海 何德宝 顾大钊 |
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| 作者单位： | 1. 核工业北京地质研究院,北京,100029
2. 核工业北京地质研究院,北京,100029;南京大学成矿作用国家重点实验室,南京,210093 |
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| 摘 要： | 文章着重对河草坑铀矿田近矿围岩蚀变特征、分带特征以及蚀变期次进行研究,结果表明：因表生氧化作用,近地表蚀变岩石多表现为紫色,向下转变为绿色;碱交代以钾交代为主,而钠交代较弱;矿田蚀变依据时间先后可划分为5个阶段。剖面系统取样分析结果揭示：在蚀变、矿化及成矿过程中U与Fe2O3、Be、Pb、W等呈正相关关系;U与Cu、Zn因矿化类型不同而表现出不同的相关关系,而U与Mo无明显关系。
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| 关 键 词： | 近矿围岩蚀变 碱交代 蚀变期次 河草坑铀矿田 |
The alteration characteristic in Hecaokeng uranium ore field in southern Jiangxi province |
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| WANG Feng-gang,FAN Hong-hai,HE De-bao,GU Da-zhao.The alteration characteristic in Hecaokeng uranium ore field in southern Jiangxi province[J].Uranium Geology,2009,25(3):150-158. |
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| Authors: | WANG Feng-gang FAN Hong-hai HE De-bao GU Da-zhao |
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| Institution: | WANG Feng-gang,FAN Hong-hai,HE De-bao,GU Da-zhao(1.Beijing Research Institute of Uranium Geology,Beijing 100029,China; 2.Department of Earth Sciences and State Key Lab of Mineral Deposit Research,Nanjing University,Nanjing 210093,China) |
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| Abstract: | This paper puts emaphasis on studying the characteristics,vertical zoning and period division of the near-ore wallrock alteration in Hecaokeng uranium ore field.The results indicate that the colour of alterated rock near the earth surface is yellow due to the oxidation and become green in deep.Alkali metasomatism is dominated by potassium while albite is relatively weak.The alteration can be divided in to five stages based on their time order.Chemical analysis of serious rocks in section shows that uranium content bears positive relation to Fe2O3,Be,Pb,W,etc and no correlation to Mo during the process of alteration,mineralization and metallization. |
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| Keywords: | near ore wallrocks alkali metasomatism alteration period Hecaokeng uranium ore field |
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