Multifractal Characteristics of Metallogenic Elements of Pingguo Accumulated Bauxite in Guangxi

In western Guangxi the accumulated bauxite was taken as the study object.The method of moments is used to analyze the grade data of 144 421 samples collected from Taiping and Nadou ore deposits.Then the multifractal characteristics of aluminum,iron and silicon in accumulated bauxite are studied.Finally,the result illustrates that the grade distributions of aluminum,iron and silicon in Pingguo bauxite are in line with the model of multifractal obviously,and so this leads to the conclusion that the distribution of metallogenic elements of exogenic deposit is in line with the model of multifractal.The comparative analysis of the multifractal spectrum and parameters of aluminum,iron and silicon from Taiping ore deposit and Nadou ore deposit shows that aluminum is enriched in Nadou ore deposit and iron is enriched in Taiping ore deposit.The differences of multifractal spectrum parameters indicate the differences of grade distribution between the two ore deposits.This may be attributed to the different intensity of denudation acting on the accumulated bauxite.Accordingly,the trend of elemental detachment of the accumulated bauxite in the weather-worn environment is preliminarily discussed.