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Big Lost Geomagnetic Excursion Recorded in the Loess-Paleosol Sequence in the Southern Part of European Russia, Otkaznoe Sectionстатья
- Авторы: Dudanova V.I., Konstantinov E.A., Pasenko A.M., Sychev N.V., Veselovskiy R.V.
- Журнал: Doklady Earth Sciences
- Том: 522
- Номер: 45
- Год издания: 2025
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- DOI: 10.1134/S1028334X25606455
- Аннотация: The paper presents the results of detailed rock magnetic and paleomagnetic studies of the LowerPleistocene loess-paleosol sequence (LPS) in the Otkaznoe section (Terek-Kuma Lowland). For the first time, the Early Brunhes geomagnetic excursion was recorded in the Otkaznoe section for loess sections in the southern part of European Russia and its continuous paleomagnetic record was obtained. The revealed excursion, covering a 0.22 m zone, is characterized by anomalous/intermediate paleomagnetic directions and thе latitudes of the virtual geomagnetic pole (VGP) ∼30° and сorrelates with the marine isotope stage (MIS) 14.The age of the geomagnetic event, determined based on the correlation of variations in magnetic susceptibility with the global oxygen isotope curve (δ18O), is ∼540 ka, and its duration is estimated at 2–3 ka. The data obtained make it possible to identify the excursion in the Otkaznoe section as the Big Lost geomagnetic eventand use it as a reliable chronostratigraphic marker for regional and global correlations.
- Добавил в систему: Дуданова Варвара Ивановна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | EarthSci2560645Dudanova.pdf | 2,3 МБ | 14 мая 2025 [Varvara12] | |
| 2. | заключение_Дуданова_и_др_2025.pdf | заключение_Дуданова_и_др_2025.pdf | 673,9 КБ | 14 мая 2025 [Varvara12] |