Results of Frequency Electromagnetic Soundings on the Chernorud-2 Area in the Valley (or the Plot of Land) Burun-Khal
D.A. Skrypnichenko, Y.A. Davydenko, Sergei Snopkov, A.V. Kharinsky · Engineering and Mining Geophysics 2019 15th Conference and Exhibition · 2019
Summary The purpose of this work is to test the Nemfis electromagnetic scanner on the archaeological survey of Priolkhonia (western Baikal region). Frequency electromagnetic sounding method, implemented in Nemfis scanner, intended for research positional relation electrical resistivity to a depth of 10 m. Relevance of the work is to evaluate the applicability of frequency electromagnetic sounding for mapping the near-surface section for solving archaeological problems in conditions of significant conductivity contrast of the earth material, lying in the foundation. In the summer of 2017, work was field trial work the purpose of which was to the effect extraction of a thin near-surface layer of the purpose of which was to isolate the effect of a thin near-surface layer of quaternary deposits on the background of significant anomalies caused by contrasting conduction primary rocks. Researches were conducted in the plot of land Bul-Durun near the student practice base of INRTU "Chernorud" (Shara-Togot village, Olkhon district, Irkutsk region).Detailed exploratory survey with a step of one 1 m. per 1 m. was performed on a reference area of 100 m. per 40 m. (Fig. 1). Areal survey data were processed using the program GeliosSMI-64 [ 1 ]. In progress of processing, using regression analysis was minimized background effect from rocks with contrasting conduction and near-surface anomalies were isolated, including from archaeological objects. As a result of experimental work has been developed processing technology of areal data frequency scan to detect weakly contrasting archaeological objects in the background of significant influence of bedrock.