The first aim of resistivity survey is a study of any inhomogeneities. ... It complicates data interpretation within the framework of anisotropic models, and distorts results of interpretation in the framework of layered or inhomogeneous media. ... Azimuthal (or circular) resistivity survey (ARS) is the best field technology for anisotropy studying. ... Visualization of azimuthal resistivity survey (ARS) data . ... Signs of anisotropy and that of inhomogeneity in spectra of ARS data. ...