Results 21 to 30 of about 126 (121)

U-Pb AGE OF ZIRCONS FROM PALEOPROTEROZOIC SECONDARY QUARTZITES OF THE BOLSHOI TYUTERS ISLAND AND FROM SANDY MATRIX OF EARLY RIPHEAN CONGLOMERATES OF THE GOGLAND ISLAND (GULF OF FINLAND): FEATURES OF THE PRE-RIPHEAN HIATUS IN SEDIMENTATION IN THE NORTHEAST OF THE EAST EUROPEAN PLATFORM

Геодинамика и тектонофизика
The paper presents the results of U-Pb isotope dating of zircons extracted from rocks of the southern part of the Baltic Shield (Early Riphean conglomerates and Paleoproterozoic secondary quartzites) and makes a comparison of these results with the ages ...
E. N. Terekhov, N. B. Kuznetsov, T. V. Romanyuk, M. A. Matveev, A. B. Makeev, A. S. Novikova, M. Yu. Gushchina, A. S. Dubenskiy, V. S. Sheshukov, A. A. Iurmanov   +9 more
doaj   +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

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

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

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

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

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

Variations of Th/U values in Vendian clayey rocks of north-east East-European Platform and Middle and Southern Urals as reflection redox status of sedimentary basins

Литосфера, 2017
Earlier, we considered the features of the redox changes in the near-bottom layer of water in the sedimentation basins that existed during the Late Riphean and Vendian in the eastern and northeastern (in modern coordinates) margins of the Baltic.
Andrey V. Maslov, Viktor N. Podkovyrov
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

Formation features and a geodynamic map of the Ural-Timan-Paleo-Asian segment of Eurasia

Литосфера, 2020
Research subject. This article is devoted to the formation features of the Ural-Timan-Paleo-Asian segment of Eurasia. Materials and methods. The research was based on the authors’ data and those obtained following a review of available publications on ...
V. A. Koroteev, V. M. Necheukhin, V. A. Dushin, E. N. Volchek   +3 more
doaj   +1 more source