kerala tamil nadu mineral generalised drainage basins geology sillimanite ravindra kumar
composition garnets kerala garnet fields placer comparisons hinterland average deposits mineral relationship kumar ravindra
kerala hydrological rivers boundaries given
kerala physiographic divisions geography envis latitudes
kerala map river rivers backwaters lakes maps major prokerala water state list location tributaries reservoirs know other click here
geological draining generalised gsi formations
drainage system india river water basin basins area contributes meaning called total single
peninsular cratons geologic displayed generalized craton dharwar