| 用氢氧化物共沉淀法研究热液体系REE（Nb,Ti）2O6型矿物的形成机理 |
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| 引用本文： | 贡伟亮,赵伟.用氢氧化物共沉淀法研究热液体系REE（Nb,Ti）2O6型矿物的形成机理[J].矿物学报,1993,13(2):104-108. |
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| 作者姓名： | 贡伟亮 赵伟 |
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| 作者单位： | 中国科学院地球化学研究所，中国科学院地球化学研究所，中国科学院地球化学研究所，中国科学院地球化学研究所 贵阳 550002，贵阳 550002，贵阳 550002，贵阳 550002 |
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| 摘 要： | 作者进行了稀土铌钛氢氧化物共沉淀实验,对共沉淀物及其高温灼烧产物进行了XRD、IR、DTA和Raman研究,结合前人高温高压实验结果以及野外地质事实,提出了热液体系复杂氧化物矿物易解石和黑稀金矿的络合物高温水解、氢氧化物共沉淀、脱水去羟、聚合成核和结晶的成因模式。
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| 关 键 词： | 热液 FEE2O6 矿物 氢氧化物 共沉淀 |
A STUDY ON THE FORMATION MECHANISM OF REE (Nb, Ti)_2O_6-TYPE MINERALS IN THE HYDROTHERMAL SYSTEM BASED ON THE EXPERIMENT ON HYDROXIDE COPRECIPITATION |
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| Gong Weiliang Zhao Wei Xie Hongsen Huang Shunhua.A STUDY ON THE FORMATION MECHANISM OF REE (Nb, Ti)_2O_6-TYPE MINERALS IN THE HYDROTHERMAL SYSTEM BASED ON THE EXPERIMENT ON HYDROXIDE COPRECIPITATION[J].Acta Mineralogica Sinica,1993,13(2):104-108. |
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| Authors: | Gong Weiliang Zhao Wei Xie Hongsen Huang Shunhua |
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| Abstract: | The experiment on REE-Nb-Ti hydroxide coprecipitation was done and the coprecipitated materials and their thermal products were analyzed using XRO, DTA, IR and Raman spectroscopy. In conjunction with the geological facts and previous studies, a new genetic model for the complex oxide minerals (aeschynite and euxenite) formed in the hydrothermal system is presented in this paper. High temperature hydrolysis of the F-CO_3-O complexes of Nb, Ti and REE, hydroxide coprecipitation, dehydration, polymerization, nucleation and crystallization are involved in the model. The model is favourable to the hydrothermal genesis of the Bayan Obo Nb-REE-Fe complex deposits. |
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| Keywords: | hydroxide coprecipitation REE(Nb Ti)2O_6-type mineral IR and Raman spectroscopy hydrothermal genesis Bayan Obo |
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