Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
2D Modeling of Controlled Source Radiomagnetotelluric Data Observed on Buried Faults Close to St. Petersburg/Russia. / Tezkan, B.; Muttaqien, I.; Saraev, A.
Near Surface Geoscience 4-8 September 2016, Barcelona, Spain. European Association of Geoscientists and Engineers, EAGE. ed. European Association of Geoscientists and Engineers, 2016.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - 2D Modeling of Controlled Source Radiomagnetotelluric Data Observed on Buried Faults Close to St. Petersburg/Russia
AU - Tezkan, B.
AU - Muttaqien, I.
AU - Saraev, A.
N1 - Conference code: 124666
PY - 2016/9/4
Y1 - 2016/9/4
N2 - Controlled source radiomagnetotellurics (CSRMT) is a new and innovative method of near surface geophysics. We applied this method for the detection of a buried fault beneath a test area close to St. Petersburg. During this survey, a rectangular current was injected into the ground using an electrical horizontal dipole with a length of 700 m and O.5, 11.5, 30 and 105 kHz -As well as their subharmonics - were used as main frequencies. The time series of two horizontal field components and three magnetic field components were observed at 97 stations with a station interval of 20 m in the near, the transition, and the far field zone of the electrical dipole. Transfer functions were derived in the frequency interval of 1 kHz to 1000 kHz from the observed electric and magnetic time series using the newly developed processing software. They showed a smooth dependence of frequency indicating the reliability of the observed CSRMT data. The CSRMT data were interpreted in the far field zone by using a 2D inversion algorithm and in the near zone by using 2D forward calculations. The derived 2D conductivity models showed clearly the location of buried faults as large resistivity contrasts.
AB - Controlled source radiomagnetotellurics (CSRMT) is a new and innovative method of near surface geophysics. We applied this method for the detection of a buried fault beneath a test area close to St. Petersburg. During this survey, a rectangular current was injected into the ground using an electrical horizontal dipole with a length of 700 m and O.5, 11.5, 30 and 105 kHz -As well as their subharmonics - were used as main frequencies. The time series of two horizontal field components and three magnetic field components were observed at 97 stations with a station interval of 20 m in the near, the transition, and the far field zone of the electrical dipole. Transfer functions were derived in the frequency interval of 1 kHz to 1000 kHz from the observed electric and magnetic time series using the newly developed processing software. They showed a smooth dependence of frequency indicating the reliability of the observed CSRMT data. The CSRMT data were interpreted in the far field zone by using a 2D inversion algorithm and in the near zone by using 2D forward calculations. The derived 2D conductivity models showed clearly the location of buried faults as large resistivity contrasts.
KW - electromagnetic method
KW - Magnetotellurics
KW - airborne electromagnetic
U2 - 10.3997/2214-4609.201601919
DO - 10.3997/2214-4609.201601919
M3 - Conference contribution
BT - Near Surface Geoscience 4-8 September 2016, Barcelona, Spain
PB - European Association of Geoscientists and Engineers
Y2 - 4 September 2016 through 8 September 2016
ER -
ID: 7592831