The penetration depth is dependent on various factors but mostly the ground conductivity
and the EM wave frequencies (Yaccup and Brabham, 2012), when the quality of data acquired is influenced by the ambient electromagnetic noise.
0], a being the ground conductivity
, f the frequency of radiation and [[epsilon].
Part III - Scanner solenoid - ground conductivity
and software, PC, and portable calibration stand holder - 1 piece - a detailed description of the object of the contract is attached as Appendix 2C to the Terms of Reference - Description of the order (part III).
As can be seen in , it is difficult to reduce the peak transient grounding resistance (P-TGR) value by increasing the number of the grounding electrode or improving the topology of the grounding system at the assumed ground conductivity
meters for environmental site evaluation.
The measurements are then analyzed using a mathematical heat transfer model to estimate ground conductivity
and borehole resistance values.
The effects of ground conductivity
and field distortions are accommodated in the real-lime processing.
The electromagnetic method of geophysical observation was carried out using a ground conductivity
meters Geonics EM31.
In this application it is typically only used as a guide and is often carried out in conjunction with other tools such as ground conductivity
McNeill (1980) presented the theoretical basis for the use of electromagnetic (EM) ground conductivity
meters to map lateral variation in subsurface electrical conductivity.
As the Crazy Creek Zone is covered by overburden, and only known from geophysics and limited historical drilling, a ground conductivity
survey (EM31) was completed over the Zone in 2003 to determine if the intersected mineralization outcrops on surface, to better define the extents of the near surface mineralization and to help constrain the planned trenching program.
However, increasing the relative permittivity will result in a longer TGR lasting time, while the increase of the ground conductivity
can both decrease the peak value and the TGR lasting time.