| 黔北道真沙坝铝土矿矿床地质特征 |
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| 引用本文： | 吴林锋,鲜绍军,梁琼,刘玲.黔北道真沙坝铝土矿矿床地质特征[J].矿产与地质,2016(1):52-57. |
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| 作者姓名： | 吴林锋 鲜绍军 梁琼 刘玲 |
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| 作者单位： | 贵州省有色金属和核工业地质勘查局,贵州 贵阳,550005 |
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| 摘 要： | 沙坝铝土矿床是实施务正道铝土矿整装勘查以来,在道真向斜构造单元内发现的第一个大型铝土矿床,矿体产于石炭系中统黄龙组(C2hn)碳酸盐岩或志留系中下统韩家店组(S1-2hj)页岩、泥岩、砂质页岩及粉砂质泥岩之上。含矿岩系厚度、沉积基底、含矿岩系埋藏深度、厚度稳定性与矿石质量及厚度有关。成因属碎屑岩系侵蚀基准面(部分为碳酸盐岩溶蚀基准面)上的古风化壳沉积型铝土矿床1-4]。
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| 关 键 词： | 铝土矿 矿床地质特征 矿石质量 铝硅比 |
Geological characteristics of Shaba bauxite deposit in Daozhen of Guizhou |
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| Abstract: | Shaba bauxite deposit is the first large-scaled bauxite deposit which is discovered in Daozhen syncline structure unit since the implementation of package exploration of Wu-Zheng-Dao bauxite.The orebodies occur on top of the carbonate rock of Huanglong Formation (C2 hn )of middle Carboniferous system or the shale,mudstone,arenaceous shale and silty mudstone of Hanjiadian Formation (S1-2 hj )of middle-lower Silurian system.The thickness of ore-bearing rock series,the sedimentary basement,the burial depth of ore-bearing rock series and the stability of thickness are all related to the quality and thickness of ores.In conclusion,this deposit is a fossil weathering crust sedimentary bauxite deposit formed on the base level of erosion of clastic rock series (partly on the base level of corrosion of carbonate rocks). |
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| Keywords: | bauxite geological characteristic ore quality alumina-silica ratio |
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