Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 33-37.
Previous Articles Next Articles
Fusui bauxite mining area is located in the core area of the southern bauxite metallogenic
belt in Guangxi，and there is a large amount of volcanic ash. In order to further analyze the volcanic ash and
its significance to mineralization，field geological survey，laboratory microscopic identification and X-ray
diffraction analysis were used to study the volcanic ash. The results show that sedimentary bauxite can be di⁃
vided into three types: massive，clastic and dense. The accumulated bauxite is the product of weathering and
accumulation on the surface of sedimentary bauxite，which inherits the ore mineral and structural character⁃
istics of the former. The types of volcanic ash in bauxite ores can be divided into 4 kinds of rock debris，crys⁃
tal debris，glass debris and volcanic dust，basalt，andesite debris，feldspar，quartz and other basic-medi⁃
um-acid minerals. Volcanic ash bauxite is strongly mineralized，which often produces hydrobauxite，kaolin⁃
ite，hematite and other fine minerals，the total content of ore is more than 50%，which is an important mate⁃
rial source of bauxite.
