Results 101 to 110 of about 139 (121)

Upper Riphean and Lower Paleozoic Quartzite Sandstones of the Circumpolar Urals: Geochemical Characteristics, Source Areas, and Conditions of Formation

Геохимия, 2023
The results of study and comparison of geochemical characteristics of quartzite sandstones of the Upper Riphean Khobeyu and Lower Paleozoic Obeiz formations of the Circumpolar Urals are presented. It has been established that the composition of quartzite sandstone of both formations was formed mainly from recycled material of ancient metaterrigenous ...
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Formation conditions and rare-earth mineralization of Riphean carbonaceous shales of the Upper Nyatygran Subformation, Russian Far East

Russian Journal of Pacific Geology, 2017
Graphitic and graphite varieties are distinguished in the carbonaceous shales of the Riphean Upper Nyatygran Subformation in the Melgin fragment of the Turan block, eastern Bureya Massif. The protolith of the graphitic shales had a terrigenous source related to island-arc volcanism.
A. A. Cherepanov, N. V. Berdnikov, A. V. Shtareva, V. O. Krutikova   +3 more
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Upper riphean source rocks of the East European platform Russian part and adjacent folded areas

Moscow University Bulletin Series 4 Geology
The article considers the deposits of the Late Riphean age, which can potentially be considered as oil and gas source deposits on the East European platform and adjacent folded areas. The data on the interlayers of rocks of the Upper Riphean enriched with organic matter are generalized and systematized.
D. D. Kozhanov, M. A. Bolshakova, K. A. Sitar, A. N. Botalov, I. V. Shirobokova, D. I. Gabdrakhmanova, V. V. Maltsev, S. S. Zaichenko   +7 more
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COMPARATIVE ANALYSIS OF PALEOMAGNETIC DATA ON THE INZER FORMATION OF THE UPPER RIPHEAN IN THE

Геосфера. Современные проблемы естественных наук, 2022
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Paleomagnetic study of red-colored rocks of the Upper Riphean in the Southern Urals

Geologicheskii vestnik, 2020
K.N. Danukalov, I.V. Golovanova, R.Yu. Sal’manova, N.P. Parfir’ev   +3 more
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Clay minerals in Upper Riphean-Wendian terrigenous rocks and in the base of the Markovsk deposit

International Geology Review, 1974
D.D. Kotel'nikov, T.V. Florenskaya
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Age and Provenance of the Riphean Rocks of the Chetlas Group of the Middle Timan: U–Th–Pb (LA-ICP-MS) Dating of Detrital Zircons

Stratigraphy and Geological Correlation, 2021
Victoria Ershova, Andrey K. Khudoley
exaly  

First results of U-Pb LA-ICP-MS-isotope dating of detrital zircons from Upper Riphean arkose sandstones of the Biryan member of the Upper Riphean Zilmerdak Formation, Southern Ural

Доклады академии наук, 2018
A. Maslov, Yu. Erokhin, A. Gerdes, Yu. Ronkin, K. Ivanov   +4 more
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Upper Proterozoic of the Russian platform (Riphean and Vendian) [book review]

American Journal of Science, 1969
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Isotope age of boundaries between the general stratigraphic subdivisions of the Upper Proterozoic (Riphean and Vendian) in Russia: The evolution of opinions and the current estimate

Stratigraphy and Geological Correlation, 2015
M A Semikhatov, N M Chumakov
exaly