| 广西龙塘蚀变流纹岩风化过程中Ti、Nb、Ta、Zr、Hf、Th的活动性研究 |
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| 引用本文： | 顾尚义,毛健全,张启厚.广西龙塘蚀变流纹岩风化过程中Ti、Nb、Ta、Zr、Hf、Th的活动性研究[J].贵州工业大学学报(自然科学版),2002,31(1):14-17. |
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| 作者姓名： | 顾尚义 毛健全 张启厚 |
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| 作者单位： | 贵州工业大学资源与环境学院,贵州,贵阳,550003 |
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| 基金项目： | 武警黄金部队资助项目 . |
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| 摘 要： | 对广西龙塘蚀变流纹岩风化剖面中六个难溶元素的活动性进行了研究。研究结果表明 ,Ti、Nb和Ta元素在整个风化成土过程中基本上保持了它们的稳定性。Zr、Hf和Th在风化剖面上部有明显的富集 ,可能与矿物锆石与钍石在风化壳表层被腐植酸溶解后向下迁移被蒙脱石与非晶质氧化铁吸附有关。
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| 关 键 词： | 风化 难溶元素 活动性 广西 |
| 文章编号： | 1009-0193(2002)01-0014-05 |
| 修稿时间： | 2001年9月20日 |
Tl,Nb,Ta,Zr,Hf,and Th Mobility During Altered Rhyolite Weathering in Longtang,Guangxi |
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| GU Shang yi,MAO Jian quan,ZHANG Qi hou.Tl,Nb,Ta,Zr,Hf,and Th Mobility During Altered Rhyolite Weathering in Longtang,Guangxi[J].Journal of Guizhou University of Technology(Natural Science Edition),2002,31(1):14-17. |
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| Authors: | GU Shang yi MAO Jian quan ZHANG Qi hou |
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| Abstract: | Six refractory elements mobility was studied for altered rhyolite weathering profile in Longtang,Guangxi.The results show that elements Ti,Nb and Ta keep immobile during weathering and pedogenesis whereas Zr,Hf and Th are pronounced enrichment in the upper part of the weathering profile.The enrichment for the three elements may be attributed to their downward migration due to dissolution of zircon and thorite by humus acid and adsorption by montmorillonite and amorphous iron oxides. |
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| Keywords: | weathering refractory elements mobility Guangxi |
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