The Blake geomagnetic excursion recorded in the Mikulino Interglacial sediments of the Neva Lowland
- Authors: Dudanova V.I.1,2, Veselovskiy R.V.1,2, Ruchkin M.V.3,4, Sheetov M.V.4
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Affiliations:
- Lomonosov Moscow State University
- Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
- Saint Petersburg State University
- Karpinsky Russian Geological Research Institute
- Issue: Vol 514, No 2 (2024)
- Pages: 205–210
- Section: GEOLOGY
- URL: https://journals.rcsi.science/2686-7397/article/view/263503
- DOI: https://doi.org/10.31857/S2686739724020029
- ID: 263503
Cite item
Abstract
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.
About the authors
V. I. Dudanova
Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
Email: roman.veselovskiy@ya.ru
Geological faculty
Russian Federation, Moscow; MoscowR. V. Veselovskiy
Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
Author for correspondence.
Email: roman.veselovskiy@ya.ru
Geological faculty
Russian Federation, Moscow; MoscowM. V. Ruchkin
Saint Petersburg State University; Karpinsky Russian Geological Research Institute
Email: roman.veselovskiy@ya.ru
Institute of Earth Sciences
Russian Federation, Saint Petersburg; Saint PetersburgM. V. Sheetov
Karpinsky Russian Geological Research Institute
Email: roman.veselovskiy@ya.ru
Russian Federation, Saint Petersburg
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