Results 31 to 40 of about 1,820 (158)

Hydrothermal pyrolysis of organic matter in Riphean mudstone

Geochemistry International, 2009
The catagenesis of organic matter (OM) was modeled by the hydrothermal pyrolysis of a source rock (Riphean mudstone from eastern Siberia). Isothermal experiments 72-h long were carried out in an aqueous environment in autoclaves at temperatures of 300, 310, 320,..., 370°.
Melenevsky, V.N., Kontorovich, A.E., Huang, W.L., Larichev, A. I., Bul’bak, T. A.   +4 more
openaire   +2 more sources

Neoproterozoic Microfossils from the Margin of the East European Platform and the Search for a Biostratigraphic Model of Lower Ediacaran Rocks [PDF]

, 2010
A ca. 600 m thick siliciclastic succession in northern Russia contains abundant and diverse microfossils that document early to middle Ediacaran deposition along the northeastern margin of the East European Platform.
Knoll, Andrew Herbert, Sergeev, Vladimir N., Vorob’eva, Nataliya G.   +2 more
core   +1 more source

Unique titanium Deposits of Timan: genesis and age issues

Записки Горного института, 2022
The article critically analysesthe hypotheses about the formation, age, and sources of material of large Timan titanium deposits, which were previously considered ancient buried placers formed along the weathering crusts of the Riphean shales. We discuss
Aleksandr B. Makeyev, Nataliya I. Bryanchaninova, Anna O. Krasotkina   +2 more
doaj   +1 more source

Ediacaran Microfossils from the Ura Formation, Baikal-Patom Uplift, Siberia: Taxonomy and Biostratigraphic Significance [PDF]

, 2014
Abundant and diverse microfossils from shales of the uppermost Ura Formation, central Siberia, document early to middle Ediacaran life along the southeastern margin of the Siberian Platform.
Knoll, Andrew Herbert, Sergeev, Vladimir N., Vorob, Natalya G.   +2 more
core   +1 more source

The role of proterozoic sediments in the formation of oil and gas content in the northern part of the Volga-Ural oil and gas basin (based on the results of basin modeling)

Georesursy
Two-dimensional basin modeling was carried out along regional profiles (sublatitudinal and submeridional). When modeling, the software package of Lomonosov Moscow State University was used.
D. D. Kozhanov, M. A. Bolshakova, I. S. Khopta   +2 more
doaj   +1 more source

Nature of zircon clastics in the Riphean and Vendian sandstones of the Southern Urals

Georesursy, 2019
New age dates of detrital zircons of terrigenous rocks augmented the possibilities of interpretation of their provenance. Unfortunately this interpretation is restricted by a formal comparison of age-and-composition characteristics of detrital crystals ...
A.A. Krasnobaev, V.N. Puchkov, N.D. Sergeeva, S.V. Busharina   +3 more
doaj   +1 more source

First High‐Precision U–Pb CA–ID–TIMS Age of the Chuanlinggou Formation, North China Craton: Implications for Global Correlations of Black Shales and the Statherian/Calymmian Boundary

Geophysical Research Letters, Volume 51, Issue 18, 28 September 2024.
Abstract The Chuanlinggou Formation in the northern North China preserves the world's earliest multicellular eukaryote microfossils. Here we present a high‐precision zircon U–Pb CA–ID–TIMS age of 1,641.7 ± 1.2 Ma for a tuff layer within the black shales of the Chuanlinggou Formation.
Shuan‐Hong Zhang, Sandra L. Kamo, Richard E. Ernst, Guo‐Hui Hu, Qi‐Qi Zhang, Hafida El Bilali, Yue Zhao   +6 more
wiley   +1 more source

Redox bottom-water conditions in Neoproterozoic basins on eastern and north-eastern periphery of East-European Platform

Литосфера, 2015
The redox bottom-water conditions in the sedimentary basins, which existed during the Late Riphean-Vendian on the east and north-east (in modern coordinates) margins of the Baltic, are investigated.
A. V. Maslov, V. N. Podkovyrov
doaj   +2 more sources

Palaeozoic orogeneses around the Siberian craton: Structure and evolution of the Patom belt and foredeep

, 2009
International audienceThis paper sheds light on the evolution of the Patom belt. This mountain range draws an arc along the southeastern edge of the Siberian craton.
Anasimova, Svetlana, A., de Boisgrollier, Thomas, Fournier, Marc, Kovalenko, Sergei, N., Leturmy, P., Petit, Carole, Ringenbach, Jean-Claude, San'Kov, Vladimir, A.   +7 more
core   +2 more sources

Palaeomagnetism of the Bayan Gol formation, western Mongolia [PDF]

, 1996
Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis.
Budney, C. J., Evans, D. A., Kirschvink, J. L., Zhuravlev, A. Yu   +3 more
core   +1 more source