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Technique and Near-Surface Application of the Controlled Source Radiomagnetotellurics with a Horizontal Electric Dipole
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 24th European Meeting of Environmental and Engineering Geophysics, Sep 2018, Volume 2018, p.1 - 5
Abstract
Summary
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.
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