Technique and Near-Surface Application of the Controlled Source Radiomagnetotellurics with a Horizontal Electric Dipole
A. Saraev, A. Shlykov and B. Tezkan
Event name: 24th European Meeting of Environmental and Engineering Geophysics
Session: New Technologies, Developments and Research Trends A & Modelling, Inversion and Data-processing in Near Surface Geophysics D
Publication date: 09 September 2018
Info: Extended abstract, PDF ( 544.58Kb )
Price: € 20
Parameters of the developed controlled source radiomagnetotelluric (CSRMT) system are considered. A horizontal electric dipole is used as a source. It ensures measurements at a significant distance (up to 3-4 km) in a wide frequency range 1-1000 kHz. The use of relatively high frequencies is a cause to take into account displacement currents in the air. In comparison with the quasi-stationary case, there are some differences, which should be taken into account at field measurements and data interpretation. At mapping of a paleo-valley the CSRMT application permits deriving the geoelectric section which is confirmed by vertical electric sounding, reflection seismic and borehole data.