| 贵州遵义仙人岩铝土矿床古红土壳分带模式 |
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| 引用本文： | 叶德书,李沛刚,朱永红,朱成林,赵应朝.贵州遵义仙人岩铝土矿床古红土壳分带模式[J].中国地质,2010,37(5):1480-1489. |
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| 作者姓名： | 叶德书 李沛刚 朱永红 朱成林 赵应朝 |
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| 作者单位： | 贵州省地矿局106地质大队; |
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| 基金项目： | 中国地质调查局地质大调查项目 |
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| 摘 要： | 笔者根据基底页岩在红土风化过程中的矿物成分和化学成分的演变规律,建立了遵义仙人岩铝土矿床古红土壳的分带模式,从上至下划分为:(1)铁铝质壳带,又称强风化带或最终分解带;(2)铁铝质粘土岩带,又称中度风化带或分解带;(3)粘土岩-黄铁矿带,又称弱风化带或轻微分解带;(4)原生页岩带。通过孢粉化石鉴定和Rb-Sr法同位素年龄测定,肯定了古红土壳形成于早石炭世大塘期旧司时,当属原地红土风化残积的产物。
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| 关 键 词： | 铝土矿 成矿母岩 古红土壳 分带模式 贵州遵义 |
The zonal model for the paleo-weathering crust of the Xianrenyan bauxite deposit in Guizhou Province |
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| YE De-shu,LI Pei-gang,ZHU Yong-hong,ZHU Cheng-lin,ZHAO Ying-chao.The zonal model for the paleo-weathering crust of the Xianrenyan bauxite deposit in Guizhou Province[J].Chinese Geology,2010,37(5):1480-1489. |
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| Authors: | YE De-shu LI Pei-gang ZHU Yong-hong ZHU Cheng-lin ZHAO Ying-chao |
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| Institution: | YE De-shu,LI Pei-gang,ZHU Yong-hong,ZHU Cheng-lin,ZHAO Ying-chao(No.106 Geological Party,Guizhou Bureau of Geology and Mineral Exploration & Development,Zunyi 563000,Guizhou,China) |
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| Abstract: | With the Xianrenyan bauxite deposit as an example and according to the evolution of mineral composition and chemical composition in the process of laterite weathering in the basic shale,the authors established a paleo-weathering crust zonal model for Zunyi bauxite deposits.The paleo-weathering crust is divided into four parts from top to bottom:(1) iron and aluminum crust zone,also known as the strongly weathered zone or the ultimate weathering zone;(2) iron and aluminum clay zone,also known as moderately w... |
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| Keywords: | bauxite ancient weathering crust zonal model Zunyi |
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