THE USE OF GROUND-PENETRATING RADAR IN THE STUDY OF TALIKS IN THE LOWER REACHES OF THE VILYUY RIVER
D.E. Edemskiy1, V.M. Lytkin2, I.V. Prokopovich1,3
1Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, Moscow, Russia
2Melnikov Permafrost Institute, Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russia
3MIREA - Russian Technological University, Moscow, Russia
Keywords: subaerial taliks, ground-penetrating radar, GPR survey, tukulans, permafrost
Abstract
This article presents the results of a GPR study at groundwater discharge sites located in the Makhatta and Kysyl-Syr tukulans (Republic of Sakha (Yakutia)). GPR profiles were obtained using 50 and 150 MHz antenna systems, characterizing the structure of sandy sediments and the boundaries of suprapermafrost subaerial taliks. In the southeastern margin of the Makhatta Tukulan, groundwater boundaries with a depth of 4.5-10 m in different lithological conditions were identified. In the Kysyl-Syr Tukulan, watered horizons with a width of 550 m and a depth of 13-32 m forming complex channels of groundwater migration and discharge were detected.
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