1887

Abstract

Summary

Induced Polarization (IP) effect is particularly effective for metallic sulfides, and is used as an effective exploration method for metallic mineral resources. In general, the time-domain IP (TDIP) method requires shorter measurement time than the Spectral IP (SIP) method, and the noise originating from the transmitted wave has less impact on the decay waveform of the potential after current interruption. Therefore, spectral analysis of the potential decay waveform obtained by the TDIP method is expected to contribute to the efficient acquisition of information on frequency responses comparable to the SIP. However, the decay waveforms of electric potentials are often easily exposed to ambient noise, and using noisy data for frequency-domain transformations reduces the accuracy of frequency responses estimation. In this study, we propose a simple method for spectral analysis of TDIP waveforms that can robustly estimate the frequency response of complex resistivity even for noisy time-series data.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.202472085
2024-05-13
2026-02-15

  • From This Site

    /content/papers/10.3997/2214-4609.202472085
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Johansson, S., Hedblom, P. and Dahlin, T. [2020]. Spectral analysis of time domain induced polarization waveforms.Journal of Applied Geophysics, 177, 104037.
     [Google Scholar]
  2. Olsson, P.-I., Dahlin, T., Fiandaca, G., and Auken, E. [2015]. Measuring time-domain spectral induced polarization in the on-time: decreasing acquisition time and increasing signal-to-noise ratio: Journal of Applied Geophysics, 123, 316–321.
     [Google Scholar]
  3. Pelton, W. H., Ward, S. H., Hallof, P. G., Sill, W. R., and Nelson, P. H. [1978]. Mineral discrimination and removal of inductive coupling with multifrequency IP.GEOPHYSICS, 43, 588–609.
     [Google Scholar]
  4. Sugisaki, M., Motoori, M., Matsukuma, Y., Makuuchi, A., and Takakura, S. [2015]. Time domain and frequency domain IP test surveys in the Kuroko deposit, Odate area, Akita.Proceedings of the SEGJ Conference, 132, 47–50.
     [Google Scholar]
  5. Yamada, R., and Yoshida, T. [2013]. Kuroko deposits and related back-arc volcanism in the Hokuroku district.The Journal of the Geological Society of Japan, 119, S168–S179.
     [Google Scholar]
  6. Zhdanov, M. S., Burtman, V., Endo, M. and Lin, W. [2018]. Complex resistivity of mineral rocks in the context of the generalised effective-medium theory of the induced polarisation effect: Resistivity of mineral rocks in the context of the GEMTIP effect.Geophysical Prospecting, 66, 798–817.
     [Google Scholar]
/content/papers/10.3997/2214-4609.202472085
Loading
A Robust Method for Spectral Analysis of Time-Domain IP Data
Conference Proceedings 2024, 1 (2024); https://doi.org/10.3997/2214-4609.202472085
/content/papers/10.3997/2214-4609.202472085
/content/papers/10.3997/2214-4609.202472085
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error