| 我国一水硬铝石型铝土矿的矿物学研究 |
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| 引用本文： | 李启津. 我国一水硬铝石型铝土矿的矿物学研究[J]. 桂林工学院学报, 1987, 0(4) |
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| 作者姓名： | 李启津 |
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| 作者单位： | 中国有色金属工业总公司矿产地质研究院 |
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| 摘 要： | 在我国一水硬铝石型铝土矿床中已查明矿物94种。其中钽铌铁矿等12种矿物在国外铝土矿中尚无报导。一水硬铝石是我国铝土矿的主要铝工业矿物,其结晶程度、粒度大小、比磁化系数和红外光谱的O-H键波数因矿床成因类型不同而异。研究表明,一水硬铝石的形成途径主要有三种:由高岭石直接脱硅而成;三水铝石经区域变质作用脱水而成;后生、表生条件由铝真溶液结晶而成。
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| 关 键 词： | 铝土矿 矿物学 一水硬铝石 成因类型 中国 |
A STUDY ON MINERALOGY OF DIASPORE BAUXITE DEPOSITS IN CHINA |
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| Li Qijin Research institute of geology for minerel resources,CNNC. A STUDY ON MINERALOGY OF DIASPORE BAUXITE DEPOSITS IN CHINA[J]. Journal of Guilin University of Technology, 1987, 0(4) |
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| Authors: | Li Qijin Research institute of geology for minerel resources CNNC |
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| Abstract: | Ninety-four minerals have been discovered in diaspore bauxite deposits-in China, among these minerals, twelve, Ta-columbite and o thers beingunknownin foreign bauxite deposits. Diaspore, the major industrial aluminium min-eral in Chinese bauxite dapositsdiffersin crystallinity, grain size, specificmagnetization coefficient and infrared absorption spectra of O-H bond fordifferent genetic types of the deposits.From studies data it is evident thatthere are mainly three ways for the diaspore to form: directly by desilici-fication of kaolinite; by dehydration of gibbsite during the regional metamorphism; and by crystallization of the aluminium true solution in the deu-terogenic and epigenic processes. |
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| Keywords: | bauxite mineralogy diaspore genetic type China |
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