Geology of Kampung Lawar and Water Quality Assessment of Jeli and Tok Bok Hot Springs

The present research is focused on geological mapping and water quality assessment in hot springs of Jeli and Tok Bok which situated in Jeli and Machang districts in Kelantan respectively. The objective of this research is to update the geological map of study area with scale of 1:25000 and to compare the hydro-geochemical data of Jeli and Tok Bok hot springs. The methodology was applied for geological mapping based on secondary data from previous researchers, websites and remote sensing to observe the geomorphological features, structures and drainage pattern of study area. All these field related data were processed in GIS based platform to generate geological and other thematic maps. For the comparative water quality assessment, physical parameters were studied such as pH, total dissolved solid (TDS), dissolved oxygen, temperature and electrical conductivity (EC). In addition, few chemical parameters including chloride, calcium, sodium, magnesium, potassium, bicarbonate, sulphate, fluoride and iron were also analysed from both the hot spring water. Geologically the study area mainly consists granite and schist rock units in Jeli hot spring area. The granite was aged back to Cretaceous and known as Lawar Granite while the schist was Tiang Schist from the Silurian-Devonian period. Based on the water quality data, Jeli hot spring water represents the magnesium-bicarbonate type whereas the Tok Bok hot spring water represents the calcium- chloride type of Piper Trilinear Diagram.