| 褐帘石及其次生物的研究 |
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| 引用本文： | 宋林康,陈春.褐帘石及其次生物的研究[J].湖南地质,1992,11(4):311-314. |
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| 作者姓名： | 宋林康 陈春 |
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| 作者单位： | 湖南省地质学校，湖南省地质学校，湖南省地质学校 长沙 410114，长沙 410114，长沙 410114 |
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| 摘 要： | 褐帘石发生蚀变后,其次生物的化学成分变化很大,除SiO_2外,A1、Ce~(4+)增高一倍以上,而Fe、Ti、Mg、Ca及多种稀土成分几乎全部消失。另外,其次生物在物相上也发生了转化,生成高岭石、埃洛石、方饰石和铁质等集合体。在湿热多雨、植被茂密地段,岩体中褐帘石的大量存在并发生次生成矿作用,是形成湖南姑婆山风化壳型稀土矿床的有利地带。
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| 关 键 词： | 褐帘石 次生蚀变 稀土矿床 |
ALLANITE AND ITS SECONDARY PRODUCTS |
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| Song Lingkang Chen Chun Liu Liuen.ALLANITE AND ITS SECONDARY PRODUCTS[J].Hunan Geology,1992,11(4):311-314. |
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| Authors: | Song Lingkang Chen Chun Liu Liuen |
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| Institution: | Geological School of Hunan Province |
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| Abstract: | After its alteration the chemical compositions of the secondary products of allanite have been un-dertaken great change. Besides SiO_2, the contents of Al, Ce~(4+) increase 2 times more than their original states, while Fe. Ti, Mg, Ca and some REE have nearly all lost. Moreover, the secondary products of allanite can be converted to kolinite, halloysite, cerianite, iron oxide and their aggrega-tes. The humid and rainy districts with luxuriant vegetation are the favourable areas for the forma-tion of weathing REE deposits in Guposhan, Hunan becouse of the existing of great number of alla-nites and their alteration. |
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| Keywords: | allanite secondary alteration REE deposit Guposhan granite Hunan |
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