Abstract
Fluvial depositional environment is not studied because of long-term political probrem in Cambodia. To clarify thickness of alluvial deposits and bedrocks along the Mekong river is one of objectives of this study for understanding landform developments.
Additionally, groundwater resources is very important as stable water resources in study area where water supply system is not provided. For development of groundwater resources, more detailed information of groundwater is necessary to drill each wells. Especially, the information of groundwater of quaternary where drilling is relatively easy, is important for developments of groundwater resources.
Therefore, Vertical Electric Sounding (VES) is conducted at each landforms such as flood plain for investigation to know resistivity distribution in subsurface around Phnom Penh City. And, the laboratory experiment is conducted to clarify the electrical feature of stratum. From results of VES and laboratory experiments, sand layer can be identified and estimated. Based on these results and data, groundwater resources were estimated.
