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New stratigraphic and isotope data on the Kimmeridgian-Volgian boundary beds of the Subpolar Urals, Western Siberiaстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Rogov Mikhail A., Price Gregory D.
- Журнал: Geological Quarterly
- Том: 54
- Номер: 1
- Год издания: 2010
- Издательство: Police Geological Institute
- Местоположение издательства: Poland
- Первая страница: 33
- Последняя страница: 40
- Аннотация: A review and new data regarding the ammonite faunas and biostratigraphy of the uppermost Kimmeridgian-lowermost Volgian of the Subpolar Urals are presented. The combined ranges of almost all ammonite genera in the lowermost Volgian of the Subpolar Urals supports the traditional point of view regarding the equivalence of the Magnum Zone with the two lowermost Bolonian Zones and with the bulk of the Klimovi Zone. This stratigraphic interpretation permits the stable isotope data (carbon and oxygen) derived from associated belemnites to be presented in context. The isotopic records from the belemnites suggest that the lower Volgian sediments of the Yatria River, Subpolar Ural Mountains were deposited in a warm marine environment consistent with a warm high latitude scenario. If reduced salinites arc invoked apparent temperatures are lowered by similar to 5 degrees C, but still remain well above freezing and are relatively warm compared to some recent modelled estimates of Late Jurassic ocean temperatures.
- Добавил в систему: Рогов Михаил Алексеевич