Results 131 to 140 of about 2,364 (193)

Formation of an unusual form of Riphean Eosolenides

Paleontological Journal, 2014
A specific group of tubular microfossil Eosolenides, which display a series of biological innovations for these organic-walled microorganisms, is reported from the Meso-Neoproterozoic boundary beds (Lakhanda Microbiota, 1 Ga). This morphologically diverse group is recognized by the presence of unicellular symbionts and by an external narrowly-segmented
T. N. Hermann, V. N. Podkovyrov
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Ediacaria in the Siberian hypostratotype of the Riphean

Doklady Earth Sciences, 2008
The study of stratigraphy and paleontology of the Riphean/Vendian boundary strata is fundamental to decoding the transitional (Neoproterozoic) stage in the evolution of the biosphere. During this stage, the Proterozoic-style biota with limited morphological diversity, small size of individual organisms, lack of biogeographic zonation, and low rates of ...
K. E. Nagovitsin, D. V. Grazhdankin, B. B. Kochnev   +2 more
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STRATIGRAPHIC SEQUENCE AND OVERTHRUST SHEETS IN THE RIPHEAN-VENDIAN DEPOSITS OF EKINARYN AREA (MIDDLE TIAN-SHAN)

Vestnik of the Kyrgyz-Russian Slavic University
For the Riphean-Vendian deposits of the eastern Middle Tien Shan, a stratigraphic scheme has been established to date, according to which the late Riphean volcanics of the Bolshoi Naryn suite are replaced by diamictites, and the latter by variegated ...
A. Mikolaichuk, Ya. Rozhas-Agramonte, N.O. Seiitkaziev, Gordeev D.V.   +3 more
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Late Riphean Sedimentation in the Central Russian Aulacogen

Lithology and Mineral Resources, 2003
Result of the analysis of combined structural, facies, mineralogical, and micropaleontological data suggest that the formation of the Central Russian Aulacogen was related to the evolution of a major strike-slip system in the Late Riphean on the Russian Plate.
N. P. Chamov, V. V. Kostyleva, A. F. Veis, V. I. Gorbachev   +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.
D. Kozhanov, M. A. Bolshakova, K. Sitar, A. Botalov, I. V. Shirobokova, D. I. Gabdrakhmanova, V. V. Maltsev, S. S. Zaichenko   +7 more
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Facies Associations of Riphean Sedimentary Sequences

Lithology and Mineral Resources, 2002
Large-scale facies associations typical of intra- and pericratonic Riphean sections of the Volga–Ural region, western slope of the Urals, Timan–Pechora region, Kola Peninsula, outer and inner parts of the Siberian, North American, and Indian platforms are considered.
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Mayanian (1100–850 Ma) – Prebaikalian Upper Riphean of Siberia

Russian Geology and Geophysics, 2008
Abstract The Mayanian (1100–850 Ma) is an all-Siberian stratigraphic subdivision of the Neoproterozoic distinguished on the basis of generalized geological and paleontological data for the Maya Group in the southeast of the Siberian craton and for its counterparts in other structure-facies areas (SFA).
V.V. Khomentovsky, K.E. Nagovitsin, A.A. Postnikov   +2 more
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ISOTOPIC AND GEOCHEMICAL SURVEY OF POTENTIALLY OIL-AND-GAS SOURCE DEPOSITS OF THE RIPHEAN IN THE SOUTH-EAST OF THE SIBERIAN PLATFORM

GEOLOGY AND MINERAL RESOURCES OF SIBERIA, 2022
Based on the study of the carbon and oxygen isotopic composition of the carbonate constituent of rocks (CCR) and carbon of dispersed organic matter (DOM), the facies conditions of sedimentation of the Middle Riphean Totinskaya and Malginskaya formations ...
S. I. Golyshev, P. Sobolev, N. L. Padalko, S. I. Dykhan, P. F. Yavorov, M. I. Prazdnichnykh, E. V. Chernikov   +6 more
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Petroleum Potential and Organic-Matter–Oil Correlation in the Rocks of the Upper Riphean Iremeken Formation in the Kamo Arch of the Baikit Anteclise (Siberian Platform)

Russian Geology and Geophysics
––A complex of laboratory studies of Riphean rocks and oils was carried out by the organic-geochemistry methods to construct a basin model for the Kamo arch of the Baikit anteclise of the Siberian craton.
L. Boldushevskaya, S. Fadeeva, I. V. Goncharov, P. Trushkov, V. V. Samoilenko, M. Veklich, N.B. Krasil’nikova, D.M. Savchik, G.U. Rudaya, A.B. Turova, Yu.L. Nikolaeva   +10 more
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Riphean and Cambrian of central Asia

International Geology Review, 1965
Mountain structures of Central Asia are made up largely of Riphean and,Cambrian deposits that are continuous and consistent over thousands of kilometers. It is quite probable that a discrete tectonic belt existed in the Urals, Central Asia, and North China in the Riphean and Cambrian. The Riphean is late Precambrian and Early Cambrian.
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