SPATIAL DATA INTEGRATION OF LITHOLOGY, GEOMORPHOLOGY AND ITS IMPACT ON GROUNDWATER PROSPECT ZONES IN PRECAMBRIAN TERRAIN OF CHITRADURGA DISTRICT, KARNATAKA, INDIA USING GEOMATICS APPLICATION

Abstract

Mapping of lithology and geomorphology are carried out in typical hard rock terrain of Chitradurga district, which belongs to Dharwar Craton, Southern India. Groundwater resources in hard rock terrain are limited which need proper management and developmental programme strategies in its sustainability. Efforts have been made to evaluate the lithological units and geomorphological landforms in Precambrian terrain using Visual Image Interpretation Techniques (VIIT) and Digital Image Processing (DIP) of Landsat-7 False Color Composite (FCC) through GIS software’s. Different lithological formations and landforms under each geomorphic unit have been mapped. The present study aims to integrate the geomatics application in assessing the demarcation of groundwater prospecting zones of the study area using bore well data collected during the year 2010. The final results highlight the potentiality of geomatics application in mapping of lithology and geomorphological landforms for groundwater exploration in hard rock terrain of Chitradurga district, Karnataka.