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Acta Geophysica

, Volume 64, Issue 5, pp 1446–1461

First Online: 02 December 2016Received: 03 April 2015Revised: 08 February 2016Accepted: 05 April 2016

Abstract

The paper presents an experiment on acoustic excitation of electromagnetic radiation EMR signals in skarn, sandstone, and magnetite ore samples. For the skarn and sandstone samples, the EMR signal amplitude was observed to decrease with increasing ultimate strength. Supposedly, this effect can be explained by assuming that EMR is generated when an acoustic wave propagates through an electrical double layer. The presence of piezoelectric inclusions e.g., quartz in the magnetite ore enhances the analog EMR signal and its spectral components.

Key wordsrocks electromagnetic radiation EMR skarn magnetite ore sandstone artificial acoustic excitation  Download to read the full article text



Autor: Lyudmila V. Yavorovich - Anatolii A. Bespalko - Pavel I. Fedotov - Rina B. Baksht

Fuente: https://link.springer.com/







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