|本期目录/Table of Contents|

[1]刘云华,毛晓冬,黄同兴.桂西堆积型铝土矿中三水铝石的成矿机理[J].地球科学与环境学报,2004,26(02):26-31.
　LIU Yun-hua,MAO Xiao-dong,HUANG Tong-xing.Metallogenic mechanism of gibbsite from accumulated bauxite in western Guangxi province[J].Journal of Earth Sciences and Environment,2004,26(02):26-31.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第26卷
期数:
2004年第02期
页码:
26-31
栏目:
出版日期:
2004-06-20

文章信息/Info

Title:
Metallogenic mechanism of gibbsite from accumulated bauxite in western Guangxi province
作者:
刘云华1; 3; 毛晓冬2; 3; 黄同兴4
1.中国地质大学地球科学与资源学院,北京100083;2.成都理工大学沉积地质研究所,四川成都610059; 3.宜昌地质矿产研究所,湖北宜昌443003;4.广西地质勘查总院,广西南宁530012
Author(s):
LIU Yun-hua 1; 3; MAO Xiao-dong 2; 3; HUANG Tong-xing 4
1.Institute ofGeosciences and Resources, China University ofGeosciences(Beijing), Beijing 100083, China; 2. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059,China;3. Yichang Institute ofGeology and Mineral Resources, CGS,
关键词:
堆积型铝土矿; 三水铝石; 成矿机理; 水解作用; 广西
Keywords:
accumulated bauxite ; gibbsite ; metallogenic mechanism ; hydrolytic dissociation ; western Guangxi
分类号:
P611.2
DOI:
-
文献标志码:
A
摘要:
桂西堆积型铝土矿中红土矿物共生组合、矿物空间分布规律、产出特征、矿物的形成世代、化学 成分、稀土元素和矿体内外的水质成分的研究结果表明,堆积型铝土矿中的三水铝石是由硬水铝石水解 形成的,三水铝石的形成受到地下水溶液中Al3+、[SiO4]4-浓度及pH等多种因素的制约,经历了 AlOH)3的沉淀、固化、脱玻化、结晶几个阶段。在淋滤作用的早期,形成了高岭石;在淋滤作用较弱的 位置,形成了次生石英。表明该类型铝土矿不仅是新类型矿床,其成因也是独特的,是正处于退化中的 铝土矿。
Abstract:
The mineral assemblage, spatial features of minerals distribution, characters of occurrence, generations of minerals form- ing, chemical compositions, rare earth elements and water contents inside or surrounding ore-body have been securely researched. The results indicate that the gibbsite from accumulated bauxite(Salento-type)in western Guangxi province was formed through hydratation of diaspore. The formation of gibbsite was strictly controlled by the concentrations of Al3+、[SiO4] 4-and pHin of un- derground water. It experienced several periods as precipitation, solidification, devitrification and crystallization of Al(OH)3. In early period kaolinite was formed by means of leaching and secondary quartz was formed in lightly leached position. This kind of bauxite is considered to be not only a new deposit type, and its particular genesis to be shown as a degeneration bauxite deposit as well.

参考文献/References:

[1] 谌建国, 刘云华.铝土矿新类型桂西三水铝石硬水铝石矿床 [J] .广西地质, 1997 , 101):37 ～ 44.
[2] 刘长龄.广西平果岩溶坠积再生铝土矿床新类型的形成条件 [J] .桂林冶金地质学院学报, 1981 ,3):29 ～ 39 .
[3] 卢伟华, 韦永坚.试论平果三水铝石成因、富集规律及工业价 值[J] .广西地质, 2001 , 142):15 ～ 18 .
[4] Bardossy G .岩溶型铝土矿[M] .北京:冶金工业出版社, 1990.64 ～ 67 , 190 ～ 191 , 247 ～ 266 .
[5] 刘长龄.次生岩溶坠积再生铝土矿床新类型的物质成分与成 因[J] .矿床地质, 1988 , 72):84 ～ 91 .
[6] 谌建国, 刘云华.广西两种三水铝石铝土矿成矿的差异性[J] . 地学前缘, 1999 , 6增刊):251 ～ 256 .
[7] 陈世益.广西的玻璃陨石及其裂变径迹年龄[J] .广西地质, 1996 , 93):25 ～ 30 .
[8] BardossyG.红土型铝土矿[M] .沈阳:辽宁科学技术出版社,1994.29 , 130 , 151 , 136 .
[9] 陈德潜, 陈刚.实用稀土元素地球化学[M] .北京:冶金工业出 版社, 1990.116 ～ 133 .

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备注/Memo

备注/Memo:
[收稿日期]2003-06-02
[基金项目]桂地矿科研项目[2002]02号)
[作者简介]刘云华1965-),男,四川眉山人,高级工程师,中国地质大学博士研究生,现从事矿物、岩石、矿床学研究工作。
更新日期/Last Update: 2004-06-20