CAPABILITIES OF ELECTROMAGNETIC INSTALLATIONS WHEN STUDYING THE FIELDS OF INDUCED POLARIZATION
https://doi.org/10.21285/2541-9455-2018-41-2-80-90
Abstract
Purpose. The research is aimed at studying the behavior of space and time characteristics of the fields of induced polarization caused by electric and magnetic sources typical for geoelectric settings of the south of Siberian craton. Methods. Numerical simulation of the electromagnetic field is used to calculate the transient characteristics of a typical geoelectric model. The sensitivity of non-stationary electromagnetic sounding towards the measurement of induced polarization effects is estimated on the basis of model data analysis. To measure the depths of the polarized layers spatial inversion is applied. Results. Variations of the the polarizability coefficient and depth of the polarized layer have been analyzed for one of the 3D TEM sounding areas within the North-West part of the Nepa arch. Сonclusions. The use of the magnetic source allows to improve the reliability of the studies of conductivity and polarizability of the geological section of the south of the Siberian craton.
About the Authors
A. Pospeev
Irkutsk Scientific Center SB RAS; Institute of the Earth’s Crust SB RAS
Russian Federation
Russian Federation
Doctor of Geology and Mineralogy, Leading Researcher of Irkutsk Scientific Center SB RAS and the Institute of the Earth's Crust SB RAS
134 Lermontov St., Irkutsk 664033, Russian Federation
128 Lermontov St., Irkutsk 664033, Russian Federation
E. Murzina
Irkutsk Electroprospecting Company JSC; Irkutsk National Research Technical University
Russian Federation
Russian Federation
Postgraduate of Irkutsk National Research Technical University, Geophysicist of Irkutsk Electroprospecting Company JSC
2а Rabochaya St., Irkutsk 664011, Russian Federation
83 Lermontov St., Irkutsk 664074, Russian Federation
S. Kompaniets
Irkutsk Electroprospecting Company JSC
Russian Federation
Russian Federation
Leading Geophysicist
2а Rabochaya St., Irkutsk 664011, Russian Federation
V. Emelianov
Irkutsk Electroprospecting Company JSC
Russian Federation
Russian Federation
Geophysicist
2а Rabochaya St., Irkutsk 664011, Russian Federation
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Review
For citations:
Pospeev A., Murzina E., Kompaniets S., Emelianov V. CAPABILITIES OF ELECTROMAGNETIC INSTALLATIONS WHEN STUDYING THE FIELDS OF INDUCED POLARIZATION. Earth sciences and subsoil use. 2018;41(2):80-90. (In Russ.) https://doi.org/10.21285/2541-9455-2018-41-2-80-90
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