WIT Press


A Study Of The SP Field Produced By A Polarized Sphere In An Electrically Homogeneous And Transversely Anisotropic Ground

Price

Free (open access)

Paper DOI

10.2495/ENV000171

Volume

41

Pages

10

Published

2000

Size

854 kb

Author(s)

G.A. Skianis, T.D. Papadopoulos, & D.A. Vaiopoulos

Abstract

A study of the SP field produced by a polarized sphere in an electrically homogeneous and transversely anisotropic ground G. A. Skianis*, T. D. Papadopoulos^ & D. A. Vaiopoulos* ' Remote Sensing Laboratory, Department of Geology, University of Athens, Greece. ^ Geophysics-Geothermy Division, Department of Geology, University of Athens, Greece. Abstract The model of the polarized sphere, seated in an electrically homogeneous and isotropic half-space, has extensively been applied in the quantitative interpretation of self-potential (SP) anomalies, which are attributed to mineralized bodies, subsurface water or heat flow, or buried metallic bodies. Anisotropy, however, distorts the electric current flow and, consequently, the self-potential anomalies measured at ground surface. Important errors in the quantitative interpretation of the SP anomaly may be introduced, if electric anisotropy is not taken into account. In the present paper, the analytical expression for the SP f

Keywords