Interpretation of resistivity measurements over 2D structures
R. Schulz and B. Tezkan
Journal name: Geophysical Prospecting
Issue: Vol 36, No 8, November 1988 pp. 962 - 975
Info: Article, PDF ( 579.63Kb )
Resistivity measurements were carried out in a survey area in the south of Germany. This area is characterized by complicated subsurface geology. Schlumberger full-arrays and their respective half-arrays were recorded simultaneously. The results obtained by the one-dimensional (1D) interpretation of the full-array measurements were incorrect because of a resistivity discontinuity. This discontinuity, under a relatively thick overburden, could only be located by the half-array soundings. Its exact location and the resistivity distribution in the subsurface were ascertained by comparing the sounding curves with 2D model curves, which are calculated by a finite-difference method.