The Blake geomagnetic excursion recorded in the Mikulino Interglacial sediments of the Neva Lowland

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Resumo

We present the first results of a detailed rock magnetic and paleomagnetic research of the Mga marine interglacial sediments of the Mikulino (Eemian) Interglacial (the Upper Pleistocene) in the Etalon section (former Sverdlov Factory, Leningrad Region). The Blake geomagnetic excursion was determined in the upper part of the Mga formation according to a shallow inclination of the characteristic remanent magnetization (ChRM) component. Age of the Blake excursion was obtained as 117 ± 7 ka applying optically stimulated luminescence (OSL) dating. The results obtained are in good agreement with other Blake Event records. The ChRM in the Mga sediments is related to syngenetically formed biogenic greigite produced by magnetotactic bacteria.

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Sobre autores

V. Dudanova

Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences

Email: roman.veselovskiy@ya.ru

Geological faculty

Rússia, Moscow; Moscow

R. Veselovskiy

Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences

Autor responsável pela correspondência
Email: roman.veselovskiy@ya.ru

Geological faculty

Rússia, Moscow; Moscow

M. Ruchkin

Saint Petersburg State University; Karpinsky Russian Geological Research Institute

Email: roman.veselovskiy@ya.ru

Institute of Earth Sciences

Rússia, Saint Petersburg; Saint Petersburg

M. Sheetov

Karpinsky Russian Geological Research Institute

Email: roman.veselovskiy@ya.ru
Rússia, Saint Petersburg

Bibliografia

  1. Бахмутов В. Г., Евзеров В. Я., Колька В. В. Палеомагнетизм ленточных глин: седиментогенез и запись вековых вариаций // Физика Земли. 2009. № 7. С. 25–41.
  2. Максимов Ф. Е., Савельева Л. А., Попова С. С., Зюганова И. С., Григорьев В. А., Левченко С. Б., Петров А. Ю., Фоменко А. П., Панкратова Л. А., Кузнецов В. Ю. Хроностратиграфическое положение микулинских отложений (на примере опорного разреза у д. Нижняя Боярщина, Смоленская область) // Известия РАН. Серия Географическая. 2022. Т. 86. № 3. С. 447–469.
  3. Laj C., Channell J. E.T. Geomagnetic Excursions // Treatise on Geophysics. 2007. V. 5. P. 373–416. https://doi.org/10.1016/B978-044452748-6.00095-X
  4. Храмов А. Н., Гончаров Г. И., Комиссарова Р. А., Писаревский С. А., Погарская И. А., Ржевский Ю. С., Родионов В. П., Слауцитайс И. П. Палеомагнитология. Л.: Недра. 1982. 312 с.
  5. Tauxe L. Essentials of paleomagnetism. University of California Press. 2010.
  6. Veselovskiy R. V., Dubinya N. V., Ponomarev A. V., Fokin I. V., Patonin A. V., Pasenko A. M., Fetisova A. M., Matveev M. A., Afinogenova N. A., Rud’ko D.V., Chistyakova A. V. Shared Research Facilities “Petrophysics, Geomechanics and Paleomagnetism” of the Schmidt Institute of Physics of the Earth RAS // Geodynamics & Tectonophysics. 2022. V. 13 (2). 579. https://doi.org/10.5800/GT-2022-13-2-0579
  7. Ефремов И. В., Веселовский Р. В. PMTools: новое программное обеспечение для анализа палеомагнитных данных // Физика Земли. 2023. № 5. С. 150‒158.
  8. Wintle A. G. Luminescence dating: laboratory procedures and protocols // Radiation Measurements. 1997. V. 27 (5–6). P. 769–817. https://doi.org/10.1016/S1350-4487(97)00220-5
  9. Buylaert J.-P., Murray A. S., Thomsen K. J., Jain M. Testing the potential of an elevated temperature IRSL signal from K-feldspar // Radiation Measurements. 2009. V. 44 (5). P. 560–565. https://doi.org/10.1016/j.radmeas.2009.02.007
  10. Durcan J. A., King G. E., Duller G. A.T. DRAC: Dose Rate and Age Calculator for trapped charge dating // Quaternary Geochronology. 2015. V. 28. P. 54– 61. https://doi.org/10.1016/j.quageo.2015.03.012
  11. Huntley D. J., Lamothe M. Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating // Canadian Journal of Earth Sciences. 2001. V. 38 (7). P. 1093–1106. https://doi.org/10.1139/e01–013
  12. Сhang L., Vasiliev I., Baak vaan C., Krijgsman W., Dekkers M. J., Roberts A. P., Fitz Gerald J. D., Hoesel van A., Winklhofer M. Identification and environmental interpretation of diagenetic and biogenic greigite in sediments: A lesson from the Messinian Black Sea // Geochemistry, Geophysics, Geosystems. 2014. V. 15 (9). P. 3612–3627. https://doi.org/10.1002/2014GC005411
  13. Большаков В. А., Долотов А. В. Магнитные свойства грейгита из отложений позднего неоплейстоцена Северного Каспия // Физика Земли. 2012. № 6. C. 56–73.
  14. Kirschvink J. L. The least-square line and plane and the analysis of paleomagnetic data // Geophysical Journal International. 1980. V. 62 (3), P. 699–718. https://doi.org/10.1111/j.1365–246X.1980.tb02601.x
  15. Merrill R. T., McFadden P. L. Geomagnetic field stability: Reversal events and excursions // Earth and Planetary Science Letters. 1994. V. 121. P. 57–69.
  16. Osete M.-L., Javier M.-C., Rossi C., Edwards L., Egli R., Munoz-Garcia M.B., Wang X., Pavon-Carrasco J., Heller F. The Blake geomagnetic excursion recorded in a radiometrically dated speleothem // Earth and Planetary Science Letters. 2012. V. 353–354, P. 173–181. https://doi.org/10.1016/j.epsl.2012.07.041
  17. Zhu R.X, Zhou L.P, Laj C., Mazaud A., Ding Z. L. The Blake geomagnetic polarity episode recorded in Chinese loess // Geophysical Research Letters. 1994. V. 21 (8). P. 697–700. https://doi.org/10.1029/94GL00532

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2. Fig. 1. Geographical position of the research object (marked with a star) and general view of the reference section in the quarry of the Etalon plant. The photo shows a magnetic polarity column for the Mikulinsky marinium layer, obtained based on the results of the studies: black color - normal polarity, gray color - low inclination interval, comparable with the Blake excursion. Stratigraphic and genetic subdivisions: gm, lgIIms - glaciomarinium, Moscow glaciolimnium; mIIImk - Mikulinsky marinium; gIIIos - Ostashkov glacial deposits (till); lgIIIbl - Baltic glacial lake glaciolimnium.

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3. Fig. 2. Results of magnetic cleanings (a) and paleomagnetism of the Mikulino interglacial sequence in the “Etalon” section (b): χ is the magnetic susceptibility, NRM is the natural remanent magnetization, D is the declination of ChRM, I is the inclination of ChRM, MP is the magnetic polarity. The interval of the section corresponding to the Blake excursion is marked in pink; the dotted line shows the inclination of the central axial dipole in the study area (73.5°).

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