Annals of Geophysics (Jun 1994)

An experiment of spectral induced polarization

  • L. Sambuelli,
  • G. Ranieri,
  • A. Godio,
  • G. P. Deidda,
  • B. Balia,
  • G. Santarato

DOI
https://doi.org/10.4401/ag-4176
Journal volume & issue
Vol. 37, no. 5 Sup.

Abstract

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A Spectral Induced Polarization (SIP) survey was carried out in a mining test site in Sardinia (Italy). Measurements were developed along a profile by using an axial dipole-dipole array with 10 AB positions and 6 MN positions for cach AB. The amplitude and phase spectra of the apparent resistivity were acquired in the 0.25-4096 Hz frequeney range. The results obtained through the processing and inversion step seem to confirm that, with respect to the classical TD/FD Induced Polarization, SIP allows better discrimination of some important characteristics of mineral deposits such as mineral content and grain size.

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