Regularities of Distribution and Geochemical Characteristics of Sc in Bauxite of Shenjiping Mine,Southern Chongqing

Key words: 
•   /
• Sc /
• scattered elements /
• bauxite /
• distribution /
• Shenjiping mine in Southern Chongqing /
•  /
•  /
•  /

Abstract: Base on the study of the bauxite and Sc of Shenjiping mine in southern Chongqing,The A12O3 was found distribut mainly in the middleupper and middle place,the main type of bauxite are argillaceous, pisolitic, ruditel and tight.The Sc was found distribut mainly in the middleunder and under place, the main type of bauxite are claystone and bauxite. The average of correlation coefficient r =-0.62 between Sc and A12O3,it is a moderate negative correlation.The average of correlation coefficient r =-0.44 between Sc and A/S, it is a low negative correlation. The REE distribution patterns suggest that the bauxite of Shenjiping mine has some characteristics as follows: enriched LREE, Ce positive anomalies and Eu negative anomalies.The dependence relation between Sc and ΣREE of each drill hole is remarkable, and the average is a low degree of positive correlation. Bauxite and Sc may come from the aluminosilicate rocks, The migration, enrichment and evolution of bauxite and Sc have been confinemented by the environment of sedimentation, likely there are two types of Sc in bauxite: one is isomorph,the other is ion adsorption.