INTEGRATION OF GEOLOGICAL AND GEOPHYSICAL-DATA FOR THE IDENTIFICATIONOF SULFIDE MINERALIZED ZONES IN RAJPURA-DARIBA BELT, RAJASTHAN, INDIA

The geological map of Rajpura-Dariba belt prepared from Airborne magne tic geophysical and Landsat TM data (20 January 1990) has been integra ted with structural and magnetic anomalies data using a micro-computer based geographical information system known as GeoReferenced Area Man agement (GRAM) system for the identification of potential zones of bas e metal mineralisation. The spatial data analyses of the lineaments an d lithology maps derived from Landsat TM data revealed the presence of a number of workable Pb-Zn mineralization in the NE-SW trending linea ments, including the well known Dariba mine. The integration of princi pal component images such as PC1 and PC2, and directional filter outpu t of Landsat TM data with lineament maps disclosed a buried ridge havi ng NW-SE trend in the western part of Rajpura-Dariba mineralized belt.