2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University pmi-5770 https://pmi.spmi.ru/pmi/article/view/5770 Геофизические методы поисков и разведки месторождений полезных ископаемых Application of the modern electric exploratory technologies in prospecting of mineral deposits Preliminary results of deep magnetotelluric sounding on geophysical base of moscow university in Kaluga region Предварительные результаты глубинного магнитотеллурического зондирования на геофизической базе МГУ в Калужской области Moilanen E. V. Мойланен Е. В. Moilanen E. V. moilanen@mail.ru Московский государственный университет (Россия) Moscow State University (Russia) Pushkarev P. Yu. Пушкарев П. Ю. Pushkarev P. Yu. pavel_pushkarev@list.ru Московский государственный университет (Россия) Moscow State University (Russia) Shustov N. L. Шустов Н. Л. Shustov N. L. nicksh@hotmail.ru Московский государственный университет (Россия) Moscow State University (Russia) 16 04 2013 2013 200 65 70 16 07 2012 23 09 2012 16 04 2013 © E. V. Moilanen, P. Yu. Pushkarev, N. L. Shustov 2013 Е. В. Мойланен, П. Ю. Пушкарев, Н. Л. Шустов E. V. Moilanen, P. Yu. Pushkarev, N. L. Shustov CC BY 4.0 https://pmi.spmi.ru/pmi/article/view/5770

С мая 2011 г. в немагнитном павильоне на геофизической базе Московского университета в Калужской области проводится непрерывная регистрация длиннопериодных вариаций магнитотеллурического поля. Установлено три комплекта электрических линий с разными типами электродов. Различными группами авторов была произведена обработка полученных записей, рассчитаны кривые кажущегося сопротивления, которые были сопоставлены с кривой кажущегося сопротивления, полученной по магнитовариационным данным Московской обсерватории. Для глубинной части обобщенной кривой (T > 30 с) была решена одномерная обратная задача, по результатам которой, в частности, удалось получить предварительные оценки электропроводности на коровых, верхне- и среднемантийных глубинах.

Since May 2011 we have collected long-period magnetotelluric (MT) data in non-magnetic pavilion on geophysical base of Moscow University in Kaluga region. Three sets of electrical lines with different types of electrodes were installed. Different groups of authors have made processing of MT records, calculation of apparent resistivity curves. These curves were compared with apparent resistivity curve obtained on magnetovariational data of Moscow observatory. The 1D inverse problem was solved for the deep part of the generalized curve (T > 30 s). In particular we succeeded in finding preliminary conductivity values on the depth of crust, upper and middle mantle.

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