TY - JOUR

T1 - Aftereffects in the transient electromagnetic methodinductively induced polarization

AU - Kozhevnikov, N. O.

AU - Antonov, E. Yu

N1 - Funding Information: The research was supported by the Fundamental Scientific Research Project No. 0331-2019-0007 “Geoelectrics in geological environment studies: technologies, field experiment and numerical models”. Publisher Copyright: Russian Geology and Geophysics © 2021, Novosibirsk State University.

PY - 2021/12

Y1 - 2021/12

N2 - Inductively induced electric polarization (IIP) is one of the aftereffects inherent in the geologic materials and affecting results of the transient electromagnetic method. Its effect on the inductive transient response manifests itself as a nonmonotonic EMF decay, including the polarity reversal. The dependence of IIP on many conditions makes it difficult to study the basic regularities in its manifestation. One of the ways to address this problem is to present the simulation results as a normalized transient response. From the most general point of view, the intensity and time range of the IIP manifestation are controlled by the competition between induction and induced polarization phenomena. Induced polarization manifests itself differently, depending on the transmitter used for the excitation of the ground response. Therefore, when studying polarizable ground, the results of the conventional IP method and those of the TEM method do not always correlate.

AB - Inductively induced electric polarization (IIP) is one of the aftereffects inherent in the geologic materials and affecting results of the transient electromagnetic method. Its effect on the inductive transient response manifests itself as a nonmonotonic EMF decay, including the polarity reversal. The dependence of IIP on many conditions makes it difficult to study the basic regularities in its manifestation. One of the ways to address this problem is to present the simulation results as a normalized transient response. From the most general point of view, the intensity and time range of the IIP manifestation are controlled by the competition between induction and induced polarization phenomena. Induced polarization manifests itself differently, depending on the transmitter used for the excitation of the ground response. Therefore, when studying polarizable ground, the results of the conventional IP method and those of the TEM method do not always correlate.

KW - Inductively induced polarization

KW - Transient electromagnetic method

UR - http://www.scopus.com/inward/record.url?scp=85121334697&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/41c30b51-40f0-3400-817c-358be9e77376/

U2 - 10.2113/RGG20204258

DO - 10.2113/RGG20204258

M3 - Article

AN - SCOPUS:85121334697

VL - 62

SP - 1440

EP - 1448

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 12

M1 - 9

ER -