Инд. авторы:	Kuzmina O.B., Kuzmin D.V., Shurygin B.N.
Заглавие:	Reasons for the outbreak of microphytoplankton productivity in the late Oligocene Turtas Lake–Sea, Western Siberia
Библ. ссылка:	Kuzmina O.B., Kuzmin D.V., Shurygin B.N. Reasons for the outbreak of microphytoplankton productivity in the late Oligocene Turtas Lake–Sea, Western Siberia // Doklady Earth Sciences. - 2017. - Vol.474. - Iss. 2. - P.620-623. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X17060204; РИНЦ: 31066227; SCOPUS: 2-s2.0-85024098467; WoS: 000405705400003;
Реферат:	eng: Palynological (dinocysts) and geochemical data were compared for the first time for Paleogene sediments of borehole no. 8 (settlement of Russkaya Polyana, Omsk oblast). The layers with a concentrated amount of dinocysts of the genus Pseudokomewuia (20.5% of the palynocomplex) are characterized by higher contents of Fe, P, Ti, Nb, Ta, and W. The microphytoplankton bloom (an analog of the present-day red tides) in the late Oligocene Turtas Lake–Sea was probably caused by a greater contribution of nutrient substances from the continent during the transgression of this basin. Comparative analysis of the geochemical features of marine and continental Paleogene sediments from borehole no. 8 showed that the Turtas basin was either freshwater or had brackish water. © 2017, Pleiades Publishing, Ltd.
Ключевые слова:	Brackish water; Comparative analysis; Geochemical data; Geochemical features; Late Oligocene; Paleogene sediments; Red tide; Western siberia; Lakes; dinoflagellate cyst; geochemistry; microplankton; Oligocene; paleontology; paleoproductivity; palynology; phytoplankton; Omsk; Siberia; Geochemistry; Russian Federation;
Издано:	2017
Физ. характеристика:	с.620-623