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Paramagnetic properties of Cuban red mud at low temperatures

Shvets V.

Geology, Geophysics and Environment

2018

Vol. 44, no. 4

373--378

The electron spin resonance (ESR) spectra of Cuban red mud have been measured at three different temperatures: 295 K, 150 K and 77 K. The broad absorption line with resonance fields ∼(1.7–1.8) kOe was observed at all temperatures with values of g-factor from 3.602 to 4.020. The temperature decrease resulted in an absorption line appearance with resonance fields of 3.252 kOe (g = 2.067) at 150 K and 3.339 kOe (g = 2.086) at 77 K. The ESR-signal amplitude with resonance fields ∼(1.7–1.8) kOe decreases and the ESR-signal amplitude in the field ∼3.3 kОе increases with reduction in temperature.

Application of laser strainmeters to the study of earthquake physics

Dolgikh G., Dubrov M., Dolgikh S., Kovalev S., Ovcharenko V., Savvin E., Chupin V., Shvets V., Yakovenko S.

Acta Geophysica

2006

Vol. 54, no. 2

187-197

The paper considers possibilities of applying laser strainmeters for the study of earthquake physics. One of laser strainmeters is described. A high efficiency of using the laser strainmeters for the study of earthquakes and their precursors is shown. In records of the spaced laser strainmeters, anomalous deformations propa-gating from the east to the west with the speed comparable with that of migration of earthquakes were found.