Electrometry

Apparent resistivity determination of a series bed or rock packeges of subsoil through Vertical Electric Sounding (VES).

It is measuring the apparent resistivity of a series bed or underground rock packages by using a quadripolar device with two current plugs AB through which a known intensity electric current is introduced in the ground and another two plugs MN for measuring the difference in potential related to this electric current.
This quadripolar instrument AMNB have a various different configurations, necessary for removing the various factors that influence the distribution of electric current (subsoil unhomogeneity, humidity, relief, etc) that are reflected in intensity and variation manner of the measured resistivity.
It is preparing maps and resistivity sections to which it used methods of isolines interpolation included in a performing application for map and vertical sections processing and drawing

Surface mapping gravity anomaly (detected message) related to unknown reasons from subsoil, hereupon it is attempt to promt much more parameters of geometric and physical-geological defining (the message read-in).
Gravimetric method is useful when the interest formation have densities which is sensibly different than those of surrounding formations. It is a efficient method to mapp sedimentary basins where the solid rocks have a meaningful bigger density than sediments.
Phisical interpretation or quantitativ analysis of gravimetric data and their geological interpretation lead in this way to final using, from point of knowledge and understanding of the subsurface structure, of the regional-local anomaly study results of the gravity field.

Application of a powerful auxiliary magnetic field, which two order more power than of Earth, and by the transversal direction toward than thair, the nucleus possessing a magnetic moment of some atoms – in geomagnetical metrology is usualy talk, by hydrogen, who their nucleus is just the proton, from where the term of protonic precession (or resonance), frequently used in this domain – are oriented whith their magnetic axles after this direction, assessed by the auxiliary field (polarization field). When this field is crossed out, the little magnets represented by the nucleus whith magnetic moment (in hydrogen case: protons) remain under the exclusively impact of the geomagnetic field, to which orientation they tend. The return from the polarization magnetic field direction to the  the geomagnetic field direction is taking place through a precession movement, which his frequency is in proportion as his intensity.
So, precession frequency determination and adequacy constant knowledge, supplied by physics, assure determination of geomagnetic field total intensity.