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COMPUTER CALCULATION OF RESISTIVITY PSEUDOSECTIONS OF A BURIED SPHERICAL CONDUCTOR BODY *
Author(s) -
SCURTU E. F.
Publication year - 1972
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1972.tb00657.x
Subject(s) - fortran , conductor , computation , electrical conductor , electrical resistivity and conductivity , gemology , prospecting , matrix (chemical analysis) , geology , geometry , mineralogy , computer science , algorithm , engineering geology , materials science , mathematics , volcanism , engineering , electrical engineering , mining engineering , paleontology , composite material , tectonics , operating system
A bstract The use of the electrical image method in calculating the potential of a source in the presence of a buried conductive sphere proves to be difficult because of the great number of terms making up the potential formula. The disadvantages contained by this method are avoided here by resorting to the theory of graphs. In view of this aim the “propagation” of the electrical images due to the sphere has been represented by an infinite graph to which an infinite matrix has been attached. Taking this as a basis several FORTRAN IV programs for the computation of resistivity pseudo‐sections for various electrode configurations have been coded, and a great deal of such pseudo‐sections have already been calculated with an IBM‐360 computer. Using these results, recommendations regarding both the methodology of the geoelectrical prospecting of spherical shaped conductors and the most suitable way of building resistivity pseudo‐sections are developed.