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Investigation of the subsurface conditions is one of the important factors that is needed for the determination of the suitability of an area for development. A study to characterize the Kenny Hill formation was conducted by using geophysical and engineering geological methods at two different slope cuts at Kamsis H, Universiti Kebangsaan Malaysia (UKM). The lithologies consist of phyllite, quartzite and interbedded phyllite and quartzite. The geophysical methods employed were seismic refraction and geoelectrical resistivity surveys. Engineering geological survey of the weathering profile was carried out. Based on the seismic refraction surveys, four subsurface layers have been determined. Each of the layers are characterized by different true P-wave velocities, Vp, that ranges from 180 mls to 920 m/s for the first layer, 510 mls to 1,280 mls for the second layer, 1,020 mls to 1,940 mls for the third layer and 1,860 mls to 3,150 mls for the fourth layer. The thicknesses of each of these layers were determined as <1.5 m, 0.5-4.0 m and 3.0-11.0 m. Based on the distribution of true P-wave velocities, phyllite and quartzite have distinctly different true Pwave velocities, Vp, that are 1,800 mls to 2,500 mls for phyllite and 2,500 mls to 3,200 mls for quartzite. Geoelectrical resistivity results show three main zones of different specific geoelectrical resistivities ranging from 20 Wm-I ,000 Wm, 1,000 Wm-3,500 Wm and >3,500 Wm. From the weathering profile, six weathering grades from grade I to grade VI were classified and mapped. Each of the weathered layers can be correlated with the geophysical parameters.

Pencirian geologi kejuruteraan dan geofizik batuan formasi Kenny Hill di tapak Kamsis H, Universiti Kebangsaan Malaysia