The results of detail comparison of the data of the in-situ borehole geoacoustic and electromagne... more The results of detail comparison of the data of the in-situ borehole geoacoustic and electromagnetic measurements and the experiments with the rock specimens are given there. Similarity of the results of in-situ measurements and the data of laboratory experiments of electromagnetic effect at rock specimens is shown. The synchronous borehole geoacoustic and electromagnetic measurements in the range of 30-1200 Hz, that have been carrying since 2003 year on the base of deep (2542 m) G-1 borehole in the suburbs of Petropavlovsk-Kamchatsky, have allowed to show up the effect of the natural electromagnetic emission modulating impact (EEMI) on the intension of geoacoustic emission (GAE) of rocks in their natural relations. It follows from the results of measurements at the G-1 point, in periods corresponding the calm seismic situation in the region, that the time series correlation score of GAE and EEMI is very high (fig.1). Fig.1. Example of the results of the combined geoacoustic and ele...
High precision measurements of Hall RH(T) and Seebeck S(T) coefficients have been carried out for... more High precision measurements of Hall RH(T) and Seebeck S(T) coefficients have been carried out for the first time on single crystals of rare earth dodecaborides RB12 (R - Ho, Er, Tm, Lu) at temperatures 1.8 - 300K. Low temperature anomalies associated with antiferromagnetic phase transitions in HoB12, ErB12 and TmB12 compounds have been detected on the temperature dependencies of RH(T)
An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the sei... more An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the seismic regime over the Northern Tien Shan and Pamir regions has been studied. An increased level of seismic activity was observed within 3 to 6 days after the MHD generator firing runs. It was suggested that electromagnetic pulses result in discharge of energy accumulated by the Earth crust
... the sublatitudinal strike of ridges and troughs, the reverse faultthrust fault motion, and o... more ... the sublatitudinal strike of ridges and troughs, the reverse faultthrust fault motion, and other structural fea tures [Zubovich et al., 2007]. As is known, the Northern Tien Shan is an active fault region, continuously extend ing by more than 600 km along the margins of the oro gene. ...
ABSTRACT The data of borehole geoacoustic and electromagnetic measurements in Kamchatka are compa... more ABSTRACT The data of borehole geoacoustic and electromagnetic measurements in Kamchatka are compared with the results of laboratory and field experiments on electromagnetic excitation of rocks. A noticeable similarity in the responses of the natural geological medium and rock specimens is observed. The field experiments with controlled electromagnetic sources show that the geophones placed in boreholes are capable of reliably detecting the responses of rocks in situ to electric impacts as low as 0.5 mV/m. The obtained results provide the experimental evidence in favor of the previously proposed hypothesis of modulation of geoacoustic emission in rocks in situ by the ULF atmospheric electromagnetic field.
An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the sei... more An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the seismic regime over the Northern Tien Shan and Pamir regions has been studied. It was found that occurrence of local earthquakes after firing runs of MHD generator became higher than before them. An increased level of seismic activity was observed within 3 to 6 days after the firing
The results of detail comparison of the data of the in-situ borehole geoacoustic and electromagne... more The results of detail comparison of the data of the in-situ borehole geoacoustic and electromagnetic measurements and the experiments with the rock specimens are given there. Similarity of the results of in-situ measurements and the data of laboratory experiments of electromagnetic effect at rock specimens is shown. The synchronous borehole geoacoustic and electromagnetic measurements in the range of 30-1200 Hz, that have been carrying since 2003 year on the base of deep (2542 m) G-1 borehole in the suburbs of Petropavlovsk-Kamchatsky, have allowed to show up the effect of the natural electromagnetic emission modulating impact (EEMI) on the intension of geoacoustic emission (GAE) of rocks in their natural relations. It follows from the results of measurements at the G-1 point, in periods corresponding the calm seismic situation in the region, that the time series correlation score of GAE and EEMI is very high (fig.1). Fig.1. Example of the results of the combined geoacoustic and ele...
High precision measurements of Hall RH(T) and Seebeck S(T) coefficients have been carried out for... more High precision measurements of Hall RH(T) and Seebeck S(T) coefficients have been carried out for the first time on single crystals of rare earth dodecaborides RB12 (R - Ho, Er, Tm, Lu) at temperatures 1.8 - 300K. Low temperature anomalies associated with antiferromagnetic phase transitions in HoB12, ErB12 and TmB12 compounds have been detected on the temperature dependencies of RH(T)
An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the sei... more An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the seismic regime over the Northern Tien Shan and Pamir regions has been studied. An increased level of seismic activity was observed within 3 to 6 days after the MHD generator firing runs. It was suggested that electromagnetic pulses result in discharge of energy accumulated by the Earth crust
... the sublatitudinal strike of ridges and troughs, the reverse faultthrust fault motion, and o... more ... the sublatitudinal strike of ridges and troughs, the reverse faultthrust fault motion, and other structural fea tures [Zubovich et al., 2007]. As is known, the Northern Tien Shan is an active fault region, continuously extend ing by more than 600 km along the margins of the oro gene. ...
ABSTRACT The data of borehole geoacoustic and electromagnetic measurements in Kamchatka are compa... more ABSTRACT The data of borehole geoacoustic and electromagnetic measurements in Kamchatka are compared with the results of laboratory and field experiments on electromagnetic excitation of rocks. A noticeable similarity in the responses of the natural geological medium and rock specimens is observed. The field experiments with controlled electromagnetic sources show that the geophones placed in boreholes are capable of reliably detecting the responses of rocks in situ to electric impacts as low as 0.5 mV/m. The obtained results provide the experimental evidence in favor of the previously proposed hypothesis of modulation of geoacoustic emission in rocks in situ by the ULF atmospheric electromagnetic field.
An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the sei... more An effect of high-power electromagnetic pulses of magneto-hydrodynamic (MHD) generator on the seismic regime over the Northern Tien Shan and Pamir regions has been studied. It was found that occurrence of local earthquakes after firing runs of MHD generator became higher than before them. An increased level of seismic activity was observed within 3 to 6 days after the firing
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