Stratigraphy and palaeoenvironments across the Jurassic-Cretaceous boundary in the reference section(Olenek River)for eastern regions of Laptev Sea area(Arctic Siberia,Russia)
作者：Boris L.Nikitenko,Ekaterina B.Pestchevitskaya,Svetlana N.Khafaeva
摘要：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.
发文机构：Trofimuk Institute of Petroleum Geology and Geophysics Novosibirsk State University
关键词：UpperJurassicLowerCretaceousARCTICSiberiaBIOSTRATIGRAPHYPALAEOENVIRONMENTSMICROFOSSILS
分类号： P53[天文地球—古生物学与地层学][天文地球—地质学]
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