Stratigraphy of Upper Cretaceous and Cenozoic deposits of the Bakchar iron ore deposit (southwestern Siberia): New data

N. K. Lebedeva, O. B. Kuzmina, E. S. Sobolev, I. V. Khazina

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

10 Цитирования (Scopus)

Аннотация

The results of complex palynological and microfaunistic studies of Upper Cretaceous and Cenozoic deposits of the Bakchar iron ore deposit are presented. Geochronologically, the age of the deposits varies from Campanian to Quaternary. It was established that the Slavgorod, Gan’kino, and Jurki (?) formations contain four biostratons in the rank of beds with dinocysts and three biostratons in the rank of beds with spores and pollen. The Cenozoic continental deposits contain four biostratons in the rank of beds, containing spores and pollen. As a result of the study, a large stratigraphic gap in the Cretaceous–Paleogene boundary deposits, covering a significant part of the Maastrichtian, Paleocene, Ypresian, and Lutetian stages of the Eocene, was established. The remnants of a new morphotype of heteromorphic ammonites of genus Baculites were first described in deposits of the Slavgorod Formation (preliminarily, upper Campanian). The distribution features of the different palynomorph groups in the Upper Cretaceous–Cenozoic deposits in the area of study due to transgressive-regressive cycles and climate fluctuations were revealed.

Язык оригиналаанглийский
Страницы (с-по)76-98
Число страниц23
ЖурналStratigraphy and Geological Correlation
Том25
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2017

Fingerprint Подробные сведения о темах исследования «Stratigraphy of Upper Cretaceous and Cenozoic deposits of the Bakchar iron ore deposit (southwestern Siberia): New data». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать