Golubkova, E. Yu. Bobrovskiy, I. M. Kushim, E. A. Plotkina, Yu. V.
Published in
Paleontological Journal
AbstractThe taxonomic diversity and vertical distribution of micro- and macroscopic fossil organisms are analyzed. The depositional settings of the Upper Vendian Staraya Russa (=Starorusskaya) Formation in the northwest of the Russian Platform are reconstructed. We identified two assemblages of Redkino age with Tynnia precambrica–Zinkovioides inclu...
Plyusnin, A. V. Kopaevich, L. F.
Published in
Moscow University Geology Bulletin
Abstract—The results of the analysis of the core and logs of the Upper Vendian sediments (Vilyuchansky, Nepsky, Tirsky, and Danilovsky horizons) of the northeastern part of the Nepa–Botuoba anteclise are presented. The regional sequence-stratigraphic analysis made it possible to identify six third-order sequences and stratigraphic unconformities co...
Levashova, N. M. Golovanova, I. V. Rud’ko, D. V. Danukalov, K. N. Rud’ko, S. V. Sal’manova, R. Yu. Sergeeva, N. D.
Published in
Izvestiya, Physics of the Solid Earth
Abstract—The previous paleomagnetic studies of the Upper Vendian Zigan Formation sediments on the western slope of Southern Ural revealed uncommonly numerous magnetic polarity zones (Bazhenov et al., 2016). The dating of magmatic zircons from the tuff interlayer constrained the age of this formation to 547.6 ± 3.8 Ma. The rate of reversals estimate...
Golubkova, E. Yu. Kushim, E. A. Tarasenko, A. B.
Published in
Paleontological Journal
AbstractThe environments of the Upper Vendian microscopic and macroscopic fossil organisms of the northwestern Russian Platform were reconstructed, and vertical distribution was analyzed. Five assemblages of the Kotlin age were determined: one impoverished transit assemblage and four abundant ones. A monographic restudy of the following filamentous...
Vorob’eva, N. G. Petrov, P. Yu.
Published in
Paleontological Journal
An oligotaxon association of organic-walled microfossils from the Upper Vendian Staraya Rechka Formation of the Anabar Uplift of Siberia is analyzed. Taxonomic and paleobiological interpretation of microfossils, most of which are the fungiform organisms Vendomyces major Burzin. It is shown that Vendomyces was the main destructor of necromass of the...
Leonov, M. V. Rud’ko, S. V.
Published in
Stratigraphy and Geological Correlation
The first finding of prints of the Vendian Beltanelloides sorichevae Sokolov 1965 in the lower part of the Barakun Formation confirms the Vendian age of the Far Taiga Group, Patom Complex. This finding also raises a problem concerning the lower propagation limit of Beltanelloides sorichevae.
Chumakov, N. M. Kapitonov, I. N. Semikhatov, M. A. Leonov, M. V. Rud’ko, S. V.
Published in
Stratigraphy and Geological Correlation
Chumakov, N. M.
Published in
Stratigraphy and Geological Correlation
Glacial deposits occurring close to the Vendian-Cambrian boundary were discovered long ago in several regions of Asia and West Africa. New data of recent years confirm earlier observation and specify age constraints of these deposits. In certain sections, glacial sediments rest on beds with the Upper Vendian fossils (Vendotaenia sp., Sabellidites r...
Maslov, A. V. Isherskaya, M. V.
Published in
Stratigraphy and Geological Correlation
Variations of Eu/Eu* ratio in shales from the upper Vendian Kairovo and Shkapovo groups of the Shkapovo-Shikhan depression, the Volga-Ural region, are considered. Shales in the lower part of the Karlin Formation are established to be similar in geochemistry to the shale member with abnormally low Eu/Eu* ratios at the base of the Upper Vendian Kotli...
