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A new method of quantitative interpretation of SP anomalies produced by a polarized inclined sheet 1
Author(s) -
Skianis George,
Papadopoulos Taxiarchis,
Vaiopoulos Dimitrios,
Nikolaou Sotiris
Publication year - 1995
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.1365-2478.1995.tb00274.x
Subject(s) - amplitude , physics , noise (video) , optics , geology , computational physics , magnetic dip , interpretation (philosophy) , frequency spectrum , geometry , mechanics , geophysics , mathematics , spectrum analyzer , computer science , programming language , artificial intelligence , image (mathematics)
A new method is proposed for the quantitative interpretation of SP field data produced by a polarized ore body and simulated by an inclined sheet. The theoretical concept is based on the study of the amplitude Spectrum. It is shown that the SP amplitude Spectrum is not continuous at zero frequency; this leads to the dip angle determination of the inclined sheet. It is also shown that the SP amplitude spectrum is practically nullified at a characteristic amortization frequency that depends on the depth of the polarized body. The maximum amplitude Spectrum value of the SP gradient is used to estimate the depth to the bottom of the polarized body. Thus, the geometrical parameters h and H , the depths to the top and bottom, respectively, as well as the dip angle of the inclined sheet, can be satisfactorily determined. Some problems may arise in the determination of these parameters, affecting their accuracy, whenever unwanted frequency noise is present.