| 贵州水城 - 纳雍锰矿地球化学特征 |
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| 引用本文： | 刘平,朱华,徐石辉,陈永齐,陶勇,翁申富.贵州水城 - 纳雍锰矿地球化学特征[J].华南地质与矿产,2007(2):7-13. |
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| 作者姓名： | 刘平 朱华 徐石辉 陈永齐 陶勇 翁申富 |
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| 作者单位： | 1. 贵州省地矿局106地质大队,贵州,遵义,563000
2. 贵州省地质调查院,贵阳,550004 |
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| 基金项目： | 国土资源大调查项目(200310200035)资助 |
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| 摘 要： | 贵州水城-纳雍锰矿属表生氧化锰类的锰帽型矿床。通过对锰矿石和矿胚层岩石中常量元素、微量元素及稀土元素等地球化学的研究,均具有热水沉积的特征,硅质灰岩、含硅质灰岩和生物碎屑灰岩是锰帽型矿石最主要的矿胚层。它们是在茅口晚期黔中台沟相带内中-低温热水中沉积的,锰质主要来自茅口期玄武岩。纯硅质岩仅见于地表,是含硅质的矿胚层岩石,在地表经强烈氧化作用形成氧化锰矿石同时产生的"副产品"。
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| 关 键 词： | 锰矿 矿胚层 地球化学 热水沉积 水城-纳雍 贵州 |
| 文章编号： | 1007-3071（2007）02-0007-07 |
| 修稿时间： | 2006-07-26 |
Geochemical Characteristics of the Shuicheng-Nayong Manganese Deposits in Guizhou |
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| LIU Ping,ZHU Hua,XU Shi-hui,CHENG Yong-qi,TAO Yong,WENG Shen-fu.Geochemical Characteristics of the Shuicheng-Nayong Manganese Deposits in Guizhou[J].Geology and Mineral Resources of South China,2007(2):7-13. |
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| Authors: | LIU Ping ZHU Hua XU Shi-hui CHENG Yong-qi TAO Yong WENG Shen-fu |
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| Abstract: | Shuicheng-Nayong manganese deposits belong to manganese-capped deposits in type of superior oxidized manganese.Geochemical study indicates that constant elements,microelements and trace elements in manganese ores and protore wholly take on thermal sedimentary characteristics,the siliceous limestone,silica-bearing limestone and bioclastic limestone is predominant protore beds of manganese-capped ores.They are of middle-low-thermal sediments within platform-ditch-facies belt of upper Maokou Formaiton in middle of Guizhou, which manganese source mainly come from the basalt of the Maokou Phase.Pure silicalite only exposed at surface is silica-bearing rocks of protore beds experiencing extreme oxidation at surface as additional production while generating oxidized manganese ores |
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| Keywords: | manganese protore beds geochemistry thermal sediments Shuicheng-Nayong Guizhou |
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