<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">gtcrust</journal-id><journal-title-group><journal-title xml:lang="ru">Геодинамика и тектонофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Geodynamics &amp; Tectonophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2078-502X</issn><publisher><publisher-name>Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5800/GT-2020-11-4-0509</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-1127</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОБСУЖДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DISCUSSION</subject></subj-group></article-categories><title-group><article-title>ОЦЕНКИ ХОЛЛОВСКОЙ ПРОВОДИМОСТИ ПО ДАННЫМ МАГНИТОТЕЛЛУРИЧЕСКОГО ЗОНДИРОВАНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>HALL CONDUCTIVITY ESTIMATES FROM MAGNETOTELLURIC SOUNDING DATA</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5226-4142</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плоткин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Plotkin</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630090, Новосибирск, пр-т ак. Коптюга, 3</p></bio><bio xml:lang="en"><p>3 Academician Koptyug Ave, Novosibirsk 630090</p></bio><email xlink:type="simple">PlotkinVV@ipgg.sbras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Потапов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Potapov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630090, Новосибирск, пр-т ак. Коптюга, 3</p></bio><bio xml:lang="en"><p>3 Academician Koptyug Ave, Novosibirsk 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт нефтегазовой геологии и геофизики им. А.А. Трофимука СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>15</day><month>12</month><year>2020</year></pub-date><volume>11</volume><issue>4</issue><fpage>817</fpage><lpage>828</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Плоткин В.В., Потапов В.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Плоткин В.В., Потапов В.В.</copyright-holder><copyright-holder xml:lang="en">Plotkin V., Potapov V.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.gt-crust.ru/jour/article/view/1127">https://www.gt-crust.ru/jour/article/view/1127</self-uri><abstract><p>Многие минералы по своим свойствам являются полупроводниками. Замечено также, что вмещающие породы над залежами нефти и газа, пронизываемые углеводородными флюидами, иногда проявляют себя как полупроводники. Но так как электропроводность таких сред в магнитном поле Земли становится анизотропной, вполне возможны проявления эффекта Холла в горных породах в естественных условиях, например при магнитотеллурическом зондировании. В анизотропной среде поле расщепляется на составляющие, отличающиеся коэффициентами затухания и фазовой скоростью, – нормальные моды. Отличие мод связано с их поляризацией и направлением вращения вектора поля: в одной моде поле вращается по часовой стрелке, во второй – против. За счет эффекта Холла отклик среды может быть неодинаковым в случаях возбуждения среды лишь одной из нормальных волн. Для обнаружения влияния эффекта Холла при магнитотеллурическом зондировании мы используем метод поляризационного анализа с выделением спектров мод с правой и левой круговой поляризацией. Проведены специальные эксперименты для обнаружения вклада эффекта Холла при магнитотеллурическом зондировании, получены первые оценки холловской проводимости пород.</p></abstract><trans-abstract xml:lang="en"><p>Many minerals have semiconductor properties. It is known that petroleum reservoir rocks permeated with hydrocarbon fluids can sometimes behave as semiconductors. In the Earth’s magnetic field, the electrical conductivity of such materials becomes anisotropic, and the Hall effect is quite possible in rocks in natural conditions and detectable by magnetotelluric sounding. In the anisotropic medium, the field is subject to normal mode splitting, and its components show different attenuation coefficients and phase velocities. The modes differ due to polarization and rotation of the field vectors (clockwise in one mode, and counterclockwise in another). With account of the Hall effect, responses of the medium can be different when the medium is excited by a single normal wave. To detect the Hall effect in MTS surveys, we use the polarization analysis method and select the spectra of modes with right and left circular polarization. Special experiments were carried out to detect the contribution of the Hall effect during the MTS surveys. This article presents the first estimates of the Hall conductivity for the studied rocks.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитотеллурическое зондирование</kwd><kwd>эффект Холла</kwd><kwd>нормальная мода анизотропной среды</kwd><kwd>холловская проводимость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetotelluric sounding (MTS)</kwd><kwd>Hall effect</kwd><kwd>normal mode of anisotropic medium</kwd><kwd>Hall conductivity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при частичной поддержке РФФИ (проект № 17-05-00083) и ФНИ (проект № 0331-2019-0015 «Реалистичные теоретические модели и программно-методическое обеспечение геоэлектрики гетерогенных геологических сред»).</funding-statement><funding-statement xml:lang="en">The study was carried out with partial support from RFBR (project 17-05-00083) and FNI (project 0331- 2019-0015 – Realistic theoretical models and software and methodological support for geoelectrics of heterogeneous geological media).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Avdeeva A., Moorkamp M., Avdeev D., Jegen M., Miensopust M., 2015. Three-Dimensional Inversion of Magnetotelluric Impedance Tensor Data and Full Distortion Matrix. Geophysical Journal International 202 (1), 464–481. https://doi.org/10.1093/gji/ggv144.</mixed-citation><mixed-citation xml:lang="en">Avdeeva A., Moorkamp M., Avdeev D., Jegen M., Miensopust M., 2015. Three-Dimensional Inversion of Magnetotelluric Impedance Tensor Data and Full Distortion Matrix. Geophysical Journal International 202 (1), 464–481. https://doi.org/10.1093/gji/ggv144.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Бердичевский М.Н., Дмитриев В.И. Модели и методы магнитотеллурики. М.: Научный мир, 2009. 668 с.</mixed-citation><mixed-citation xml:lang="en">Berdichevsky M.N., Dmitriev V.I., 2009. Models and Methods of Magnetotellurics. Nauchny Mir, Moscow, 668 p. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Caldwell T.G., Bibby H.M., Brown C., 2004. The Magnetotelluric Phase Tensor. Geophysical Journal International 158 (2), 457–469. https://doi.org/10.1111/j.1365-246X.2004.02281.x.</mixed-citation><mixed-citation xml:lang="en">Caldwell T.G., Bibby H.M., Brown C., 2004. The Magnetotelluric Phase Tensor. Geophysical Journal International 158 (2), 457–469. https://doi.org/10.1111/j.1365-246X.2004.02281.x.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Гололобов Д.В., Малевич И.Ю. Физические и электрохимические процессы в среде над залежью углеродов // Доклады БГУИР. 2005. № 1. С. 22–27.</mixed-citation><mixed-citation xml:lang="en">Gololobov D.V., Malevich I.Yu., 2005. Physical and Electrochemical Processes in the Medium over a Carbon Deposit. Doklady BGUIR 1, 22–27 (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Groom R.W., Bahr K., 1992. Corrections for near Surface Effects: Decomposition of the Magnetotelluric Impedance Tensor and Scaling Corrections for Regional Resistivities: A Tutorial. Survey Geophysics 13, 341–379.</mixed-citation><mixed-citation xml:lang="en">Groom R.W., Bahr K., 1992. Corrections for near Surface Effects: Decomposition of the Magnetotelluric Impedance Tensor and Scaling Corrections for Regional Resistivities: A Tutorial. Survey Geophysics 13, 341–379.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Käufl J.S., Grayver A.V., Kuvshinov A.V., 2018. Topographic Distortions of Magnetotelluric Transfer Functions: A High-Resolution 3-D Modelling Study Using Real Elevation Data. Geophysical Journal International 215 (3), 1943–1961. https://doi.org/10.1093/gji/ggy375.</mixed-citation><mixed-citation xml:lang="en">Käufl J.S., Grayver A.V., Kuvshinov A.V., 2018. Topographic Distortions of Magnetotelluric Transfer Functions: A High-Resolution 3-D Modelling Study Using Real Elevation Data. Geophysical Journal International 215 (3), 1943–1961. https://doi.org/10.1093/gji/ggy375.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kelbert A., Egbert G.D., deGroot Hedlin C., 2012. Crust and Upper Mantle Electrical Conductivity beneath the Yellowstone Hotspot Track. Geology 40 (5), 447–450. https://doi.org/10.1130/G32655.1.</mixed-citation><mixed-citation xml:lang="en">Kelbert A., Egbert G.D., deGroot Hedlin C., 2012. Crust and Upper Mantle Electrical Conductivity beneath the Yellowstone Hotspot Track. Geology 40 (5), 447–450. https://doi.org/10.1130/G32655.1.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Kelbert A., Meqbel N., Egbert G.D., Tandon K., 2014. ModEM: A Modular System for Inversion of Electromagnetic Geophysical Data. Computers &amp; Geosciences 66, 40–53. https://doi.org/10.1016/j.cageo.2014.01.010.</mixed-citation><mixed-citation xml:lang="en">Kelbert A., Meqbel N., Egbert G.D., Tandon K., 2014. ModEM: A Modular System for Inversion of Electromagnetic Geophysical Data. Computers &amp; Geosciences 66, 40–53. https://doi.org/10.1016/j.cageo.2014.01.010.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Kruglyakov M., Kuvshinov A., 2019. 3‑D Inversion of MT Impedances and Inter‑Site Tensors, Individually and Jointly. New Lessons Learnt. Earth, Planets and Space 71 (4). https://doi.org/10.1186/s40623-018-0972-8.</mixed-citation><mixed-citation xml:lang="en">Kruglyakov M., Kuvshinov A., 2019. 3‑D Inversion of MT Impedances and Inter‑Site Tensors, Individually and Jointly. New Lessons Learnt. Earth, Planets and Space 71 (4). https://doi.org/10.1186/s40623-018-0972-8.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Могилатов В.С. О влиянии геомагнитного поля на процесс установления токов в земле // Геофизика. 2013. № 4. С. 70–75.</mixed-citation><mixed-citation xml:lang="en">Mogilatov V.S., 2013. On the Influence of the Geomagnetic Field on the Process of Establishing Currents in the Ground. Geophysics 4, 70–75 (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Мороз Ю.Ф., Самойлова О.М. О геоэлектрическом различии Курило‐Камчатского и Беринговоморского сегментов Тихоокеанской зоны перехода // Геодинамика и тектонофизика. 2018. Т. 9. № 2. С. 489–501. https://doi.org/10.5800/GT-2018-9-2-0357.</mixed-citation><mixed-citation xml:lang="en">Moroz Yu.F., Samoilova O.M., 2018. On the Geoelectrical Difference between the Kuril‐Kamchatka and Bering Sea Segments of the Pacific Transition Zone. Geodynamics &amp; Tectonophysics 9 (2), 489–501 (in Russian) https://doi.org/10.5800/GT-2018-9-2-0357.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Никифоров В.М., Шкабарня Г.Н., Каплун В.Б., Жуковин А.Ю., Варенцов И.М., Пальшин Н.А., Куонг Д.Х., Чунг Н.Н., Хунг З.К. Электропроводящие элементы сверхглубинных флюидно-разломных систем как индикаторы сейсмически активных зон восточной окраины Евразийского континента (по данным магнитотеллурических зондирований) // Доклады АН. 2018. Т. 480. № 6. С. 730–738. http://dx.doi.org/10.7868/S0869565218180214.</mixed-citation><mixed-citation xml:lang="en">Nikiforov V.M., Shkabarnya G.N., Kaplun V.B., Zhukovin A.Yu., Varentsov I.M., Pal’shin N.A., Cuong D.H., Chung N.N., Hung Z.K., 2018. Electrically Conductive Elements of Superdeep Fluid-Fault Systems as Indicators of Seismically Active Zones at the Eastern Margin of the Eurasian Continent (Based on Magnetotelluric Sounding Data). Doklady Earth Sciences 480 (6), 730–738 (in Russian) http://dx.doi.org/10.7868/S0869565218180214.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Новиков И.С., Поспеева Е.В. Неотектоника восточной части Горного Алтая по данным магнитотеллурического зондирования // Геология и геофизика. 2017. Т. 58. № 7. С. 959–971. http://dx.doi.org/10.15372/GiG20170701.</mixed-citation><mixed-citation xml:lang="en">Novikov I.S., Pospeeva E.V., 2017. Neotectonics of the Eastern Part of Gorny Altai According to Magnetotelluric Sounding Data. Russian Geology and Geophysics 58 (7), 959–971 (in Russian) http://dx.doi.org/10.15372/GiG20170701.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Плоткин В.В. Методика определения вклада эффекта Холла при магнитотеллурическом зондировании // Недропользование. Горное дело. Направления и технологии поиска, разведки и разработки месторождений полезных ископаемых. Экономика. Геоэкология: Материалы Международной научной конференции. Новосибирск, 2017. Т. 2. № 3. С. 187–192.</mixed-citation><mixed-citation xml:lang="en">Plotkin V.V., 2017. Technique of the Contribution Definition of the Hall Effect by Magnetotelluric Sounding. In: Subsoil Use. Mining. Directions and Technologies for Search, Exploration and Development of Mineral Deposits. Economics. Geoecology. Proceedings of International Scientific Conference. Vol. 2. Issue 3. Novosibirsk, 187–192 (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Плоткин В.В. Проявления эффекта Холла по результатам поляризационного анализа магнитотеллурического поля // Недропользование. Горное дело. Направления и технологии поиска, разведки и разработки месторождений полезных ископаемых. Экономика. Геоэкология: Материалы Международной научной конференции. Новосибирск, 2018. Т. 4. С. 61–67.</mixed-citation><mixed-citation xml:lang="en">Plotkin V.V., 2018. Manifestations of the Hall Effect by Results of the Polarizable Analysis of the Magnetotelluric Field. In: Subsoil Use. Mining. Directions and Technologies for Search, Exploration and Development of Mineral Deposits. Economics. Geoecology. Proceedings of International Scientific Conference. Vol. 4. Novosibirsk, 61–67 (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Плоткин В.В., Могилатов В.С. О роли эффекта Холла при магнитотеллурическом зондировании // Проблемы геокосмоса: Материалы 12-й Международной школы-конференции (8–12 октября 2018 г., Санкт-Петербург, Петергоф). СПб.: Изд-во ВВМ, 2018. С. 20–26.</mixed-citation><mixed-citation xml:lang="en">Plotkin V.V., Mogilatov V.S., 2018. On the Role of the Hall Effect in Magnetotelluric Sounding. In: Problems of Geocosmos. Proceedings of 12th International School-Conference (October 8–12, 2018, Saint Petersburg, Peterhof). VVM Publishing House, Saint Petersburg, 20–26 (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Плоткин В.В., Могилатов В.С., Потапов В.В. Модификации метода Треффца для оценки вклада эффекта Холла при магнитотеллурическом зондировании // Геология и геофизика. 2019. Т. 60. № 3. С. 420–432. http://dx.doi.org/10.15372/GiG2019017.</mixed-citation><mixed-citation xml:lang="en">Plotkin V.V., Mogilatov V.S., Potapov V.V., 2019. Modifications of the Treffz Method for Estimating the Contribution of the Hall Effect in Magnetotelluric Sounding. Russian Geology and Geophysics 60 (3), 420–432 (in Russian)  http://dx.doi.org/10.15372/GiG2019017.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Поспеев В.А. Скоростная структура верхней мантии и региональная глубинная термодинамика Байкальской рифтовой зоны // Геодинамика и тектонофизика. 2012. Т. 3. № 4. С. 377–383. https://doi.org/10.5800/GT-2012-3-4-0080.</mixed-citation><mixed-citation xml:lang="en">Pospeev A.V., 2012. The Velocity Structure of the Upper Mantle and Regional Deep Thermodynamics of the Baikal Rift Zone. Geodynamics &amp; Tectonophysics 3 (4), 377–383 (in Russian)  https://doi.org/10.5800/GT-2012-3-4-0080.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Рыбин А.К., Матюков В.Е., Баталев В.Ю., Баталева Е.А. Глубинная геоэлектрическая структура земной коры и верхней мантии Памиро-Алайской зоны // Геология и геофизика. 2019. Т. 60. № 1. С. 127–139. https://doi.org/10.15372/GiG2019008.</mixed-citation><mixed-citation xml:lang="en">Rybin A.K., Matyukov V.E., Batalev V.Yu., Bataleva E.A., 2019. Deep Geoelectric Structure of the Earth’s Crust and Upper Mantle of the Pamir-Alai Zone. Russian Geology and Geophysics 60 (1), 127–139 (in Russian)  https://doi.org/10.15372/GiG2019008.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Семенов В.Ю. Обработка данных магнитотеллурического зондирования. М.: Недра, 1985. 133 с.</mixed-citation><mixed-citation xml:lang="en">Semenov V.Yu., 1985. Processing of Magnetotelluric Sounding Data. Nedra, Moscow, 133 p. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Shuey R.T., 1975. Semiconducting Ore Minerals. Elsevier, New York, 287 p.</mixed-citation><mixed-citation xml:lang="en">Shuey R.T., 1975. Semiconducting Ore Minerals. Elsevier, New York, 287 p.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Singer B.S., 1992. Correction for Distortions of Magnetotelluric Fields: Limits of Validity of the Static Approach. Survey Geophysics 13, 309–340.</mixed-citation><mixed-citation xml:lang="en">Singer B.S., 1992. Correction for Distortions of Magnetotelluric Fields: Limits of Validity of the Static Approach. Survey Geophysics 13, 309–340.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Wannamaker P.E., Hohmann G.W., Ward S.H., 1984. Magnetotelluric Responses of Three-Dimensional Bodies in Layered Earths. Geophysics 49 (9), 1517–1533. https://doi.org/10.1190/1.1441777.</mixed-citation><mixed-citation xml:lang="en">Wannamaker P.E., Hohmann G.W., Ward S.H., 1984. Magnetotelluric Responses of Three-Dimensional Bodies in Layered Earths. Geophysics 49 (9), 1517–1533. https://doi.org/10.1190/1.1441777.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Wunderman R.L., Wannamaker P.E., Young C.T., 2018. Architecture of the Hidden Penokean Terrane Suture and Midcontinent Rift System Overprint in Eastern Minnesota and Western Wisconsin from Magnetotelluric Profiling. Lithosphere 10 (2), 291–300. https://doi.org/10.1130/L716.1.</mixed-citation><mixed-citation xml:lang="en">Wunderman R.L., Wannamaker P.E., Young C.T., 2018. Architecture of the Hidden Penokean Terrane Suture and Midcontinent Rift System Overprint in Eastern Minnesota and Western Wisconsin from Magnetotelluric Profiling. Lithosphere 10 (2), 291–300. https://doi.org/10.1130/L716.1.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Yang B., Egbert G.D., Kelbert A., Meqbel N.M., 2015. Three-Dimensional Electrical Resistivity of the North-Central USA from Earthscope Long Period Magnetotelluric Data. Earth and Planetary Science Letters 422, 87–93. https://doi.org/10.1016/j.epsl.2015.04.006.</mixed-citation><mixed-citation xml:lang="en">Yang B., Egbert G.D., Kelbert A., Meqbel N.M., 2015. Three-Dimensional Electrical Resistivity of the North-Central USA from Earthscope Long Period Magnetotelluric Data. Earth and Planetary Science Letters 422, 87–93. https://doi.org/10.1016/j.epsl.2015.04.006.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Жданов М.С. Электроразведка. М.: Недра, 1986. 320 с.</mixed-citation><mixed-citation xml:lang="en">Zhdanov M.S., 1986. Electrical Prospecting. Nedra, Moscow, 320 p. (in Russian)</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
