铝土矿新类型桂西三水铝石硬水铝石矿床  

THE PARAGENETIC DEPOSIT OF GIBBSITE AND DIASPORE IN WESTERN GUANGXI

作　　者：谌建国[1] 刘云华[1] 许俊文[1] 黄同兴 

机构地区：[1]中国地质科学院宜昌地质矿产研究所,宜昌443003 [2]广西地矿局,南宁530023

出　　处：《广西地质》1997年第1期37-44,共8页Guangxi Geology

摘　　要：近年实平果等地堆积铝土矿是三水铝石硬水铝石共生的大型矿床。世界已知的７例堆积铝土矿矿床组，资源总量为１３０×１０＾６ｔ。桂西堆积铝土矿中硬水铝石与三水铝石（基质）资源量估计在６亿ｔ以上，为世界所罕见。It was proved in the past few years that the accumulation bauxite deposits in Pingguo and other places in western Guangxi are large-scale paragenetie deposits of gibbsite and diaspore. There are seven known accumulation bauxite deposit groups(Salento type)in the world,of which the total reserve is 130×10~6 ton.It is rarely seen in the world that the estimated reserve of bauxite including diaspore(gravel)and gibbsite(matrix)is more than 600×10~6 ton in the accumulation deposits in western Guangxi.It is confirmed by many years exploration that the gravels are high-grade diaspore ore,and the'mud'or cement is the matrix filling in the intergranular pore,which contains gibbsite 31%～54% and alto is the utilizable part,the latter property was recognized until the quantitating queetion on alluminiferous minerals had been solved.

关 键 词：铝土矿 三水铝石 硬水铝石 铝矿床 类型 

分 类 号：P618.450.7[天文地球—矿床学]