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.