METHOD DESIGNED TO MONITOR LOCAL IRREGULARITIES AND GEODYNAMIC ZONES OF GEOLOGICAL SECTION TOP PART (GST) Russian patent published in 2009 - IPC G01V3/12 

FIELD: instrument making.

SUBSTANCE: invention relates to geophysics, particularly, to electromagnetic LF methods intended for analysing GST. Proposed method comprises the following steps. Three antennas are used to measure mutually-orthogonal components Hx, Hy, Hz of natural Earth electromagnetic field in frequency range of f=1-200 kHz, as well as, at least, two transceivers and one master station, operated in synchronism. Note here that transceivers are arranged stationary at the GST surface, while the master station, identical to transceiver devices, is located outside the surface under analysis. Signals comprising data on Hx, Hy, Hz components are transmitted from transceivers and master station to data processing device, whereat the data is subjected to noise compensation processing. Parametres W and S are computed to decide on availability of local geological irregularities and geodynamic zones in GST zone.

EFFECT: higher validity, expanded performances.

2 cl, 2 dwg