Identification of hydrothermal alterations using Dar-Zarouk parameters and concept of anisotropy for 2D resistivity data

Measurement of geoelectric methods is commonly performed by using homogeneous and isotropy approaches. However, these approaches are not entirely the same due to the earth’s real condition. Therefore, it needs to be measured with inhomogeneous and anisotropy approach. This approach uses the parameter of Dar-Zarouk. The parameter of Dar-Zarouk is used to calculate the values of the resistivity of media and the coefficient of anisotropy. This research is intended for identifying the hydrothermal alteration that is not uniform in the field. The inhomogeneous and anisotropy approach is very appropriate to be used and expected to give a clearer cross section of true resistivity in subsurface imaging. The results of the model using the parameter of Dar-Zarouk sharpen the anomaly, hence the existence of alteration could be more visible and easier identified.