Results 31 to 40 of about 139 (121)

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

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

Seismogeological structure model of the Anabar-Olenek region

Georesursy
The velocity characteristics of the Upper Proterozoic-Phanerozoic sedimentary cover of the AnabarOlenek region were studied, in particular, the bimodal character of the distribution interval P-wave velocities was established.
I. A. Gubin, V. A. Kontorovich
doaj   +1 more source

Hydrocarbon systems and oil and gas potential prospects of the Anabar-Lena trough

Georesursy, 2017
The Anabar-Lena trough is one of the least geologically studied areas on the Siberian Platform. A few wells drilled here have not yet revealed direct signs of its oil bearing. However, indirect data indicate that this region can be very prospective. This
S.V. Frolov, N.I. Korobova, E.A. Bakay, N.S. Kurdina   +3 more
doaj   +1 more source

SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE

Известия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research is caused by the need to expand the resource base in the fields of the Baykit anteclise. Occurrence of two types of oils may be caused by additional source, which increases the prospects of the area.
Irina D. Timoshina
doaj   +1 more source

Geochemical background of Berezovsky depression oil and gas potential (eastern Siberia)

Georesursy
Berezovsky depression, located on the northeast of the Pre-Patom foredeep, is a promising target for hydrocarbon prospecting, as evidenced by oil and gas shows established while drilling, the presence of structures and natural reservoirs.
N. P. Fadeeva, N. V. Morozov, E. A. Bakay, S. V. Frolov   +3 more
doaj   +1 more source

PROVENANCE AND AGE CONSTRAINTS OF THE RIPHEAN SANDSTONES FROM THE IVANOVSKY GRABEN (THE KOLA PENINSULA) BASED ON THE U-Pb LA-ICP-MS DATING AND RAMAN SPECTROSCOPY OF DETRITAL ZIRCON

Геодинамика и тектонофизика, 2022
The results of U-Pb LA-ICP-MS dating of 150 detrital zircon grains from the Precambrian (Riphean?) sandstones of the Kildin group on the coast of the Ivanovka Bay (northeastern Kola Peninsula) are presented.
A. V. Chistyakova, R. V. Veselovskiy, D. V. Semenova   +2 more
doaj   +1 more source

DETRITAL ZIRCONS FROM THE PRECAMBRIAN OF THE IGARKA UPLIFT (NORTHWESTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика
Herein we report the results of LA-ICP-MS dating of detrital zircons from eight stratigraphic levels of the Proterozoic section of the Igarka uplift (northwestern Siberian Platform).
B. B. Kochnev, D. V. Semenova, V. B. Khubanov, M. K. Danukalova, V. V. Marusin, A. K. Khudoley   +5 more
doaj   +1 more source

First Results of the Intraformational Conglomerate Test of the Late Riphean Katav Formation (Southern Urals)

Учёные записки Казанского университета: Серия Естественные науки
Detailed petrographic, electron-microscopic, and paleomagnetic studies were conducted on flatbedded synsedimentary carbonate breccias from three blocks of rocks (one block from Minyar, two blocks from Katav-Ivanovsk) to verify the ideas about the time of
N. P. Parfiriev, K. N. Danukalov, I. V. Golovanova, S. A. Dyakova   +3 more
doaj   +1 more source

Ti-Zr placer mineralization in Neoproterozoic (Uppe r Riphean) rocks of Kildin Formation and in contemporary beach sands of Sredny and Rybachy Peninsulas, Kola Region [PDF]

Vestnik MGTU, 2017
Concentration mechanisms of titanium-zirconium placer mineralizat ion in Neoproterozoic terrigenous rocks of Zemlepakhtinskaya Formation, Kildin Group, and in contempo rary beach deposits from Sredny Peninsula and Motka Cape from Rybachy Peninsula (
Chickiryov I. V. , Voytekhovsky Yu. L.   +1 more
doaj   +1 more source