| 堆积铝土矿中三水铝石成因探讨 |
| |
| 引用本文： | 谌建国,刘云华.堆积铝土矿中三水铝石成因探讨[J].矿物岩石地球化学通报,1996(3). |
| |
| 作者姓名： | 谌建国 刘云华 |
| |
| 作者单位： | 中国地质科学院宜昌地质矿产研究所 |
| |
| 摘 要： | 堆积铝土矿中三水铝石成因探讨谌建国，刘云华（中国地质科学院宜昌地质矿产研究所，宜昌４４３００３）关键词堆积铝土矿，三水铝石－硬水铝石矿床，三水铝石成因，大气降水淋滤我国桂西至滇东广泛发育堆积型铝土矿，资源量很大。矿体是杂基支撑的角砾堆积物，砾石和基质...
|
| 关 键 词： | 堆积铝土矿，三水铝石－硬水铝石矿床，三水铝石成因，大气降水淋滤 |
The Approach of Origin of Gibbsite in Accumulation Bauxite |
| |
| Chen Jianguo, Liu Yunhua.The Approach of Origin of Gibbsite in Accumulation Bauxite[J].Bulletin of Mineralogy Petrology and Geochemistry,1996(3). |
| |
| Authors: | Chen Jianguo Liu Yunhua |
| |
| Abstract: | The widespread accumulation bauxite on karst depression in West Guangxi-East Yunnan,China is a weathering product of original bauxite deposit on the depositional unconformity interface of the top of the Lower Permian.It is a matrix- support accumulation body,consisting of pebble and matrix.The pebbles are high grade diaspore bauxite.The matrix differs from place to place,commonly including gibbsite,diaspore or/and kaolinite,geothite.The accumulation bauxite has typical paragenetic mineral assemblages of gibbsite and diaspore inPingguo,Guangxi,which is seldom seen in the other areas of the world. The two end-members of aluminum mineral genetic series-gibbsite and diaspore- make up 50-68% of total minerals in matrix, and 31-54 % of them are gibbsite, and the content of them has negative relationship. Research results indicate that gibbsite is formed under marine tropic-humid climate by hydrolysis of diaspore through intensive leaching of meteoric water during the Late Cretaceous to the Early Tertiary. |
| |
| Keywords: | accumulation bauxite sibbsite-diaspore deposit genesis of gibbsite leaching of meteoric water |
| 本文献已被 CNKI 等数据库收录！ |
|
