Application of Remote Sensing data for Delineation of Ground Water potential zones in the Kalrayan Hills, Tamil Nadu

Sakthivel, R, ManiveL,M and A. Alagappa Moses
Department of Geology, Bharathidasan University, Tiruchirapalli-24. Dept. of Environmental Sciences, Bishop Heber College, Tiruchirapalli - 17.


Abstract
In the study, an attempt has been made to delineate the ground water potential zones in the Kalrayan Hills, Eastern ghats, Tamil Nadu. In the study, the IRS-1 C FCC data was used and with aid of visual image interpretation keys the following maps were generated like geomorphology, lineament. The following geomorphologic units were also identified viz. Valley fills (VF), Pediment zone (Pz), Residual hills (RH), Bajada zones (Bz), Inselberg (I), Plateau (with moderate, shallow and highly dissected), lineament (L) and etc. In the study area, NE-SW, N-S and NW- SE trending direction lineaments have inferred. It reveals the close relationship between groundwater condition and geology & geomorphology of the study area. It inferred that the areas covered by Bajada zone, Valley fills, Buried pediments (shallow to medium) considered as potential zones for groundwater targeting and the combination of lineaments and fractures may be considered for the same.