Theoretical analysis of telluric field over a faulted basement

Summary

The telluric field anomalies over a faulted basement are computed along profiles, perpendicular to the strike of the fault planes. Schwarz-Christoffel transformations, numerical method of solving non-linear differential equations and graphical crossplotting are used to obtain the solution of the boundary value problem. Computed anomaly curves reveal that (i) quantitative estimation regarding the width of the structure and throw of the faulting can be made from the telluric and its horizontal derivative maximal by graphical crossplotting, (ii) degree of resolution decreases with the increasing depth of the structure, (iii) the effects of a faulted basement (rectangular ridge) and those of a folded basement (triangularrridge) (Roy andNaidu [2]) are similar to a considerable extent.