Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 46521 10.2205/2020ES000712 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Petromagnetism and paleomagnetism of the Tarkhanian sediments in Kop-Takyl section (the Kerch Peninsula) Petromagnetism and paleomagnetism of the Tarkhanian sediments in Kop-Takyl section (the Kerch Peninsula) Pilipenko O V Pilipenko O V pilipenko@ifz.ru Filina E V Filina E V Rostovtseva Yu V Rostovtseva Yu V Novruzov Z Novruzov Z Schmidt Institute of Physics of the Earth of RAS and Geophysical Center of RAS ru Schmidt Institute of Physics of the Earth of RAS and Geophysical Center of RAS ru Geophysical Center of RAS and Geological Faculty of the Lomonosov Moscow State University ru Geophysical Center of RAS and Geological Faculty of the Lomonosov Moscow State University ru Geophysical Center of RAS and Geological Faculty of the Lomonosov Moscow State University ru Geophysical Center of RAS and Geological Faculty of the Lomonosov Moscow State University ru Geological and Geophysical Institute of NASA ru Geological and Geophysical Institute of NASA ru 20 3 1 13 29 10 2021 https://rjes.ru/en/nauka/article/46521/view

A petromagnetic and paleomagnetic study of the Tarkhanian sediments of the Kop-Takyl section was carried out in order to obtain data on magnetostratigraphy of the Miocene sedimentary succession of Eastern Paratethys. The Kop-Takyl section is located on the Black Sea coast of Kerch Peninsula and is composed mainly of clay deposits characterized by a weak magnetization. The main carriers of magnetization are a monoclinic pyrrhotite and a low concentration of magnetite. The total thickness of the studied deposits is ∼53−56" role="presentation">∼53-56∼53-56\\sim 53-56 m. Magnetic anisotropy was studied to justify the reliability of the obtained results. Paleomagnetic studies have shown that the considered interval of the Kuvinian beds of the Tarkhanian in the lower parts is composed of sediments of normal polyrity magnetization, and rocks in its upper part are reversed magnetized. The rocks of the Terskian and Argunian beds are characterized by normal polarity magnetization, too. For correct interpretation of the position of the Tarkhanian regional stage in the general stratigraphic scale, additional interdisciplinary research is required, including the study of these sediments by cyclostratigraphy methods to determine sedimentation rates and the possible duration of sediment accumulation.

A petromagnetic and paleomagnetic study of the Tarkhanian sediments of the Kop-Takyl section was carried out in order to obtain data on magnetostratigraphy of the Miocene sedimentary succession of Eastern Paratethys. The Kop-Takyl section is located on the Black Sea coast of Kerch Peninsula and is composed mainly of clay deposits characterized by a weak magnetization. The main carriers of magnetization are a monoclinic pyrrhotite and a low concentration of magnetite. The total thickness of the studied deposits is ∼53−56" role="presentation">∼53-56∼53-56\\sim 53-56 m. Magnetic anisotropy was studied to justify the reliability of the obtained results. Paleomagnetic studies have shown that the considered interval of the Kuvinian beds of the Tarkhanian in the lower parts is composed of sediments of normal polyrity magnetization, and rocks in its upper part are reversed magnetized. The rocks of the Terskian and Argunian beds are characterized by normal polarity magnetization, too. For correct interpretation of the position of the Tarkhanian regional stage in the general stratigraphic scale, additional interdisciplinary research is required, including the study of these sediments by cyclostratigraphy methods to determine sedimentation rates and the possible duration of sediment accumulation.

 Tarkhanian Eastern Paratethys rock magnetic characteristics declination inclination of natural remanent magnetization magnetostratigraphy Tarkhanian Eastern Paratethys rock magnetic characteristics declination inclination of natural remanent magnetization magnetostratigraphy This work was supported by the Russian Science Foundation grant \\numero 19-77-10075.

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