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| Keywords | |
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Upper Jurassic |
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Lower Cretaceous |
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Arctic Siberia |
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biostratigraphy |
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palaeoenvironments |
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microfossils |
| Authors | |
| PubMed | |
Stratigraphy and palaeoenvironments across the Jurassic-Cretaceous boundary in the reference section (Olenek River) for eastern regions of Laptev Sea area (Arctic Siberia, Russia)
Boris L. Nikitenko1,2, Ekaterina B. Pestchevitskaya1, Svetlana N. Khafaeva1
1. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia;
2. Novosibirsk State University, Novosibirsk 630090, Russia
The Volgian-Valanginian succession of shallow-water deposits from the Olenek section (Anabar-Lena region, Arctic Siberia) has been studied by sedimentological and palaeontological methods. High-resolution biostratigraphy of studied interval is based on the ammonites, foraminifers, marine and terrestrial palynomorphs. Foraminiferal and palynological zones have important regional implications providing well-constrained biostratigraphy of the Anabar-Lena region. Sedimentological studies together with ecological analysis of the associations of microbenthos, microphytoplankton and terrestrial palynomorphs allow the palaeoenvironmental reconstructions for the marginal area of the Anabar-Lena palaeosea and coastal land areas.