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Paleontological Characteristics of Jurassic Sediments of Saratov Trans-Volga Region by Well Core, and New Data on the Biostratigraphy of the Kamennyi Ovrag Formationстатья
- Авторы: Tesakova E.M., Ustinova M.A., Gulyaev D.B., Rogov M.A., Shchepetova E.V., Lutikov O.A., Zastrozhnov A.S.
- Журнал: Stratigraphy and Geological Correlation
- Том: 33
- Номер: 2
- Год издания: 2025
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 215
- Последняя страница: 241
- DOI: 10.1134/S0869593824700345
- Аннотация: Jurassic deposits of the Saratov Trans-Volga Region were studied in detail in the Perelyub District in sections of Boreholes 103 and 108 by paleontological and lithological methods. The ammonite Besnosovi Zone (upper part), the foraminiferal Beds with the Lenticulina volganica–Vaginulina dainae and the ostracod Glyptocythere bathonica lineage Zone were recognized in the Pochinki Formation (terminal Bajocian–basal Bathonian). The foraminiferal Beds with the Ammodiscus baticus and the ostracod Bathoniella prima lineage Zone were recognized in the Kamennyi Ovrag Formation (upper lower Bathonian–upper Bathonian). The foraminiferal Haplophragmoides infracalloviensis–Guttulina tatariensis Zone and the ostracod Bathoniella milanovskyi lineage Zone were recognized in the Khlebnovka Formation (terminal Bathonian–lower Callovian). The following zones have been identified in the Promzino Formation (middle Volgian Substage): Panderi (ammonite), Lenticulina infravolgaensis–Saracenaria pravoslavlevi (foraminifera), Cytherella–Reticythere cornulateralis (ostracods). For the first time, the Kamennyi Ovrag Formation was paleontologically substantiated on the basis of ostracods and was found to correspond to the B. prima Zone. Middle and upper Jurassic mollusks, foraminifera and ostracods and upper Jurassic nannoplankton from the Saratov Trans-Volga Region are illustrated here for the first time.
- Добавил в систему: Тесакова Екатерина Михайловна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Тесакова_и_др._2025_Перелюб_каменноовражная_свита.pdf | Тесакова_и_др._2025_Перелюб_каменноовражная_свита.pdf | 1,3 МБ | 14 апреля 2025 [ostracon] | |
| 2. | Tesakova_et_al._2025_Perelyub.pdf | Tesakova_et_al._2025_Perelyub.pdf | 6,8 МБ | 14 апреля 2025 [ostracon] |