Interaction between karst terrain and bauxites: evidence from Quaternary orebody distribution in Guangxi, SW China.

ABSTRACT: Most bauxite in China is located upon the karst surface, yet the relation between karstification process and bauxite formation is barely known. Here we discuss how the relation affects the karst and bauxite evolution through analyzing distributions of orebody parameters from 9,007 exploration wells (434 orebodies) in western Guangxi, South China block. In high-elevation karst terrain dominated by peaks, orebodies have greater average thickness, lower Al₂O₃ and higher Fe₂O₃^T than those in low-elevation region dominated by depressions. Principal component and multifractal analyses show that the Al₂O₃, Fe₂O₃^T and LOI and the orebody thickness, determined by depression geometry, have m

SUBMITTER: Yang L 

PROVIDER: S-EPMC5605576 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature