4.1.3. Interpretation of Geophysical Logging Data
The self-potential (mV) and resistivity (ohm-m) data were plotted with
the recorded lithology in the log of the two-borehole correlation. In
general, the long normal resistivity data was found indicative of the
formation resistivity of the undisturbed and distributed zone while
short normal resistivity data were influenced by borehole face and mud
fluid. The SP along with resistivity data was found indicative of
separation of layer boundary as changes by lithology or formation of the
aquifer.