The following results were obtained by analyzing the major elementss of bauxite in the Meitan-Fenggang area: 1) There is a correlation between Al, Si, Fe and Ti elements, and Al is negatively correlated with Si and Fe, Al and Ti have positive correlation, Si is negatively correlated with Fe and Ti; 2) Al, Si and Fe have a downward migration trend, and the migration of Si and Fe to the bottom is the key to the formation of high-grade bauxite; 3) The migration of Fe Al, Si is not completely synchronized, but However, the higher the Al content, the stronger the correlation between the samples Al, Si, and Fe.

No abstract

Based on the previous study, combined with regional data, this paper studied the paleogeography and prospecting indicators of bauxite in Meitan-Fenggang area. The results show that: 1) The humid and hot paleoclimate is the favorable condition for bauxite formation; 2) The paleogeomorphology is closely related to the formation of bauxite, and the Karst depression plays a controlling role in the formation of bauxite; 3) The bauxite is formed in the near lake environment affected by seawater, and the property of water body is weakly alkali reduction. 4) There are a series of effective prospecting indicators in this area, mainly including macro geomorphological, stratum, color and underground water indicators.