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Application of piezoelectric phenomena in exploration

Application of piezoelectric phenomena in exploration. Speaker: Wan Ru Liao. Outline. Principle-What is Piezoelectricity? Application-How to use? Conclusions-What is different?. What is Piezoelectricity?. Piezoelectricity is the mechanical energy exchange for electrical energy.

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Application of piezoelectric phenomena in exploration

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  1. Application of piezoelectric phenomena in exploration Speaker: Wan Ru Liao

  2. Outline • Principle-What is Piezoelectricity? • Application-How to use? • Conclusions-What is different?

  3. What is Piezoelectricity? • Piezoelectricity is the mechanical energy exchange for electrical energy. • Piezoelectric materials are natural and artificial, like quartz and PVDF.

  4. Equation • P：Electric susceptibility(C/m2) • d：Piezoelectric constant(C/N) • σ：Stress (N/m2) P = dσ

  5. Ore-quartz zone in Yakutia, Russia • Arrary figure shows an observation scheme for ground surveys using the piezoelectric method. • The conventional piezoelectric measurements are performed using electrodes. • There is gold-bearing quartz depositat.

  6. Piezoelectric measurement array

  7. Piezoelectric measurements

  8. Crystal-bearing pegmatites in northern Ukraine • The piezoelectric method was applied to localize and delineate blind pegmatitebodies occurring in granites.

  9. Muscovite deposits in Russia

  10. Gold-bearing mine in Israel

  11. Conclusions

  12. Reference • Neishtadt, N. M., Eppelbaum, L. V., & Levitski, A. G. (2006). Application of piezoelectric and seismoelectrokinetic phenomena in exploration geophysics: Review of Russian and Israeli experiences. Geophysics, 71(2), B41-B53. • Eppelbaum, L. V., Khesin, B. E., & Itkis, S. E. (2010). Archaeological geophysics in arid environments: Examples from Israel. Journal of Arid Environments, 74(7), 849-860.

  13. Thank you for your listening.

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