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Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source. / Antonov, E. Yu; Kozhevnikov, N. O.

In: Russian Geology and Geophysics, Vol. 58, No. 7, 01.07.2017, p. 855-863.

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Antonov EY, Kozhevnikov NO. Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source. Russian Geology and Geophysics. 2017 Jul 1;58(7):855-863. doi: 10.1016/j.rgg.2017.06.008

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Antonov, E. Yu ; Kozhevnikov, N. O. / Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source. In: Russian Geology and Geophysics. 2017 ; Vol. 58, No. 7. pp. 855-863.

BibTeX

@article{e817c67da21a40d68daf44da846d8a77,
title = "Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source",
abstract = "A new method is suggested for calculation of transient electric field response to conducting magnetically viscous earth excited by a grounded line source. Calculation algorithms are implemented in the computer program FwLL_MV. Using a uniform, conducting magnetically viscous half-space as an earth model, we have shown that magnetic relaxation affects the TEM response of equatorial and in-line arrays. As in the case of loop arrays, apparent resistivity steadily decreases with time. The higher the half-space resistivity and the shorter the offset, the earlier the voltage and the apparent resistivity begin to decrease as 1/t. Magnetic relaxation and decay of eddy currents are independent processes within the range of resistivities typical of rocks. (C) 2017, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.",
keywords = "equatorial array, grounded line, magnetic viscosity, superparamagnetism, transient response, uniform earth, TEM RESPONSES, RELAXATION, VISCOSITY, LAYER, ELECTROMAGNETIC RESPONSE",
author = "Antonov, {E. Yu} and Kozhevnikov, {N. O.}",
year = "2017",
month = jul,
day = "1",
doi = "10.1016/j.rgg.2017.06.008",
language = "English",
volume = "58",
pages = "855--863",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier Science B.V.",
number = "7",

}

RIS

TY - JOUR

T1 - Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source

AU - Antonov, E. Yu

AU - Kozhevnikov, N. O.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - A new method is suggested for calculation of transient electric field response to conducting magnetically viscous earth excited by a grounded line source. Calculation algorithms are implemented in the computer program FwLL_MV. Using a uniform, conducting magnetically viscous half-space as an earth model, we have shown that magnetic relaxation affects the TEM response of equatorial and in-line arrays. As in the case of loop arrays, apparent resistivity steadily decreases with time. The higher the half-space resistivity and the shorter the offset, the earlier the voltage and the apparent resistivity begin to decrease as 1/t. Magnetic relaxation and decay of eddy currents are independent processes within the range of resistivities typical of rocks. (C) 2017, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

AB - A new method is suggested for calculation of transient electric field response to conducting magnetically viscous earth excited by a grounded line source. Calculation algorithms are implemented in the computer program FwLL_MV. Using a uniform, conducting magnetically viscous half-space as an earth model, we have shown that magnetic relaxation affects the TEM response of equatorial and in-line arrays. As in the case of loop arrays, apparent resistivity steadily decreases with time. The higher the half-space resistivity and the shorter the offset, the earlier the voltage and the apparent resistivity begin to decrease as 1/t. Magnetic relaxation and decay of eddy currents are independent processes within the range of resistivities typical of rocks. (C) 2017, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

KW - equatorial array

KW - grounded line

KW - magnetic viscosity

KW - superparamagnetism

KW - transient response

KW - uniform earth

KW - TEM RESPONSES

KW - RELAXATION

KW - VISCOSITY

KW - LAYER

KW - ELECTROMAGNETIC RESPONSE

UR - http://www.scopus.com/inward/record.url?scp=85030466101&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2017.06.008

DO - 10.1016/j.rgg.2017.06.008

M3 - Article

AN - SCOPUS:85030466101

VL - 58

SP - 855

EP - 863

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 7

ER -

ID: 9896394