METADATA IN ENGLISH

About the journal

SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN: 2312-6965, DOI: 10.21455/si,

http://elibrary.ru/title_about.asp?id=25597

English Translation: Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online),

https://link.springer.com/journal/11990

Development of the technique
for experimental study of sea Earth crust structure
in different seasons

G.I. Dolgikh, S.S. Budrin, S.G. Dolgikh, A.A. Pivovarov, A.N. Samchenko,
V.A. Chupin, V.A. Shvets, А.N. Shvyrev, S.V. Yakovenko, I.O. Yaroshchuk

V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences,
Vladivostok, Russia

Corresponding author: G.I. Dolgikh, e-mail: dolgikh@poi.dvo.ru

Abstract. A technique for experimental studies of the structure and composition of the marine crust during the warm and cold seasons of the year is described. The technique is based on the use of an electromagnetic-type low-frequency hydroacoustic emitter, creating complex phase-shift keyed signals (M-sequences) with a center frequency of 33 Hz in water, and a mobile laser strainmeter with a measuring arm length of 6 m. With a sea depth in the transmitter location of 14 m, the transmitter was submerged to a depth of 12 m. As a result of the obtained experimental data processing, in the laser strainmeter records five arrivals of the emitted phase-shift keyed signals were revealed. They propagated along the layer boundaries in the upper part of the marine crust. The propagation velocities are calculated as following: In winter approximately 2600, 2140, 1750, 1550 and 1280 m/s, and in spring 2250, 1950, 1700, 1480 and 1300 m/s. The calculated velocity values agree well with the model data. The results obtained will allow creating a technology for remote study of the structure and composition of the sea crust in the shelf zones, including those covered with ice, without destroying it.

Keywords: low-frequency hydroacoustic transmitter, phase-shift keyed signals, convolution, laser strainmeter, sea crust, wave velocities, model.

About the authors

DOLGIKH Grigory Ivanovich – Doctor of Physics and Mathematics, Academician of the Russian Academy of Sciences, Department head, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: novikova@poi.dvo.ru

BUDRIN Sergey Sergeevich – Research Fellow, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: ss_budrin@mail.ru

DOLGIKH Stanislav Grigorievich – Ph.D., Senior Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far East Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st.
E-mail: sdolgikh@poi.dvo.ru

PIVOVAROV Alexander Alexandrovich – Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st.
E-mail: pivovarov@poi.dvo.ru

SAMCHENKO Alexander Nikolaevich – Ph.D., Senior Researcher, Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: samchenco@poi.dvo.ru

CHUPIN Vladimir Aleksandrovich – Ph.D., Senior Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: chupin@poi.dvo.ru

SHVETS Vyacheslav Aleksandrovich – Ph.D., Senior Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: vshv@poi.dvo.ru

SHVYREV Alexey Nikolaevich – Ph.D., Senior Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st.
E-mail: shvyrev@poi.dvo.ru

YAKOVENKO Sergey Vladimirovich – Ph.D., Senior Researcher, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: ser_mail@poi.dvo.ru

YAROSHCHUK Igor Olegovich – Doctor of Physics and Mathematics, Laboratory head, V.I. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences. 690041, Vladivostok, 43 Baltiyskaya st. E-mail: yaroshchuk@poi.dvo.ru

Cite this article as: Dolgikh G.I., Budrin S.S., Dolgikh S.G., Pivovarov A.A., Samchenko A.N., Chupin V.A., Shvets V.A., Shvyrev А.N., Yakovenko S.V., Yaroshchuk I.O. Development of the technique for experimental study of sea Earth crust structure in different seasons. Seismicheskie Pribory, 2018, Vol. 54, no. 4, pp. 14–27. (in Russian). DOI: 10.21455/si2018.4-2

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2019, Volume 55, Issue 4.