NDLI: Electromagnetic Diagnostic of Arctic Cryolitozone by Radiowave Methods

Content Provider	IEEE Xplore Digital Library
Author	Bashkuev, Yu.B. Melchinov, V.P. Buyanova, D.G. Angarkhaeva, L.Kh. Dembelov, M.G. Khaptanov, V.B. Advokatov, V.R.
Copyright Year	2006
Description	Author affiliation: Buryat Sci. Center, Russian Acad. of Sci. (Bashkuev, Yu.B.; Melchinov, V.P.; Buyanova, D.G.; Angarkhaeva, L.Kh.; Dembelov, M.G.; Khaptanov, V.B.; Advokatov, V.R.)
Abstract	The purpose of this paper is to present a detailed physical description and classification of electrical properties, construction and structure of the cryolitozone at the depth of skin-layer in VLF range for Aldan plateau, central part of the Yakutia and tundra regions not far from the Arctic Ocean. Electrical characteristics of the regions studied are typical for the cryolitozone. A frequency dispersion of some types of permafrost zones is experimentally studied. It is then shown that frequency dispersion of the electric resistance of the layer of frozen friable sediments over the frequency from direct current to VLF-MF ranges is a peculiarity of electrical properties of the cryolitozone. A complex interpretation of the data of radioimpedance and electric soundings for permafrost rocks is carried out on the basis of developed automated numerical methods of direct and inverse problems for the radioimpedance sounding. It is determined that geoelectrical sections with the type of K $(rho_{1}$ < $rho_{2}$ > $rho_{3})$ and the type of Q $(rho_{1}$ > rho $_{2}$ > $rho_{3})$ are most typical for sediment rocks of the cryolitozone at the depth of 100 meters of the Northern-East part of Russia. Geoelectrical section A $(rho_{1}$ < rho2 < $rho_{3})$ is the basic for ancient crystal rocks of the Aldan shield. Electrical properties of the cryolitozone are changed appropriately in space and in time and depend on the complex of the crystal and sediment rocks. The surface impedance shows inductive and capacitive nature and is changed in a wide range from minimum for saline lands to maximum for granitoids
Starting Page	204
Ending Page	210
File Size	306758
Page Count	7
File Format	PDF
ISBN	1424401836
DOI	10.1109/CEEM.2006.257937
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arctic Frequency Sediments Electric resistance Earth Conductivity Erbium Oceans Electric variables Inverse problems sediment rocks electrical properties cryolitozone frequency dispersion surface impedance VLF-MF ranges radioimpedance sounding crystal rocks
Content Type	Text
Resource Type	Article

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