Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1134/S0869593817030054

Ключевые слова: geochemistry, Irkutsk coal basin, Jurassic, sedimentary rocks, Sm-Nd model ages

Аннотация: On the basis of the recently accepted chronostratigraphic chart, Jurassic sedimentation in the Irkutsk coal basin took place over a short time interval (~23 My), from the Pliensbachian (~191 Ma) to the Aalenian (~170 Ma). In this study, we present geochemical and Sm-Nd isotope data for sedimentary rocks of the Prisayan and Kuda forПоказать полностьюmations and those in the upper course of the Angara River, which were deposited over an even shorter time interval (from ~174 to 170 Ma), as indicated by new data on biostratigraphy. Our results suggest that a greater contribution from Transbaikalia compared to that from the Siberian Platform during sediment deposition in the Irkutsk coal basin may reflect the onset of mountain building in Transbaikalia and reorganization of the river drainage network during the Middle Jurassic. © 2017, Pleiades Publishing, Ltd.

Журнал: Stratigraphy and Geological Correlation

Выпуск журнала: Vol. 25, Is. 4

Номера страниц: 363-384

ISSN журнала: 08695938

Издатель: Maik Nauka-Interperiodica Publishing

• Mikheeva E.A. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Demonterova E.I. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Frolov A.O. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Arzhannikova A.V. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Arzhannikov S.G. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Cherkashina T.Y. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation)
• Ivanov A.V. (Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation, Kazan Federal University, Kazan, Russian Federation)

• Scopus