FACTORIAL CORRESPONDENCE-ANALYSIS OF SPATIALLY RELATED MULTI-METALLICDATA ALONG GANGPUR-SINGHBHUM METALLO-TECTONIC BELT

Correspondence analysis, using the concept of joint probability distri bution of two random variables, individual samples and chemical variab les, was applied to two sets of multi- metallic data from Mosaboni cop per mines (18th, 21st & 25th levels) and Sargipalli lead-zinc mine fal ling within the Gangpur-Singhbhum metallo-tectonic belt. The analysis results factor loadings for individual samples and variables, which wh en plotted as points on two-dimensional coordinate (factorial) axes wi th the same origin recognize distinct geochemical domains characterise d by natural groupings or clusters of samples and variables. The simul taneous variation of trace elements in these two data sets with sample locations (background/anomalous) seems to reflect overall trends of g eochemical evolution of base metal mineralisation in the region.