Warawutti Lohawijarn

pp. 633 - 647

Abstract

Residual gravity anomaly with a minimum of about -140 mm s^-2 with approximately NS trend and
a limited axial length was observed over Hat Yai Basin in Peninsular Thailand. The modeled Hat Yai basin
is about 1 km deep at its deepest, 60 km long and 20 km wide. The porosity of basin sediment and the amount
of potential ground water reserves within the basin are estimated to be 39% and 121.7±0.8 km³
 respectively,
assuming full saturation. Within the topmost 80 m of ground where the present extraction is concentrated,
the estimated ground water reserve is 12.5±0.5 km³
.