Results 131 to 140 of about 1,820 (158)

Lower and middle Riphean lithologic complexes of the world

International Geology Review, 1982
(1982). Lower and middle Riphean lithologic complexes of the world. International Geology Review: Vol. 24, No. 5, pp. 509-525.
A. B. Ronov, V. Ye. Khain, K. B. Seslavinskiy   +2 more
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POSTSEDIMENTATION ALTERATION OF GLAUCONITE IN SOUTHEAST YAKUTIA RIPHEAN BEDS

International Geology Review, 1985
(1985). POSTSEDIMENTATION ALTERATION OF GLAUCONITE IN SOUTHEAST YAKUTIA RIPHEAN BEDS. International Geology Review: Vol. 27, No. 12, pp. 1451-1460.
T. A. Ivanovskaya, S. I. Tsipurskiy, V. I. Cherkashin, L. K. Yakhontova   +3 more
openaire   +1 more source

Pb—Pb Age of the Bakal Ore Field Riphean Magnesite

Doklady Earth Sciences, 2018
For the first time, the age of magnesite in the Lower Riphean Bakal Formation of the Southern Urals is determined by the U—Pb (Pb—Pb) method: it is equal to 1366 ± 47 Ma (MSWD = 18). The stage of magnesite formation of the Bakal ore field was associated with the Mashak rifting pulse and took place prior to the formation of industrial deposits of the ...
G. V. Ovchinnikova, A. B. Kuznetsov, M. T. Krupenin, I. M. Vasil’eva, O. K. Kaurova   +4 more
openaire   +1 more source

Records of a new spongelike group in the Riphean biota

Paleontological Journal, 2012
New microfossils of presumably sponge organization grade have been recorded in the Meso-Neoproterozoic boundary beds of the Riphean Lakhanda Formation (Maya River, Uchur-Maya Region, southeastern Siberia). Because of the microscopic size, they remained invisible for a long time among abundant green algae on the surface of individual acritarchs in ...
T. N. German, V. N. Podkovyrov
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Riphean stromatolitic formations fringing the East European platform

Stratigraphy and Geological Correlation, 2007
Riphean stromatolitic formations flank the East European epi-Karelian platform only in the east and northeast. They are traceable as long (over 3600 km) relatively narrow belt consisting of two rectilinear segments, one running along the Urals western flank from southern extremity of the Bashkirian meganticlinorium to the Polyudov Ridge and the other ...
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Riphean basins of the central and western Siberian Platform

Marine and Petroleum Geology, 2011
Abstract The Siberian Platform is unique by its volume of Meso-Neoproterozoic sedimentary deposits. For about one billion years (∼1650–650 Ma) several sedimentary basins were developed here, resulting in the formation of several kilometers thickness of sedimentary cover.
Sergey V. Frolov, Grigorii G. Akhmanov, Elena V. Kozlova, Oleg V. Krylov, Ksenia A. Sitar, Yuriy I. Galushkin   +5 more
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Hydrocarbon Potential of Riphean-paleozoic Deposits of Taimyr

Proceedings, 2012
Regional 2D seismic explorations of enhanced depth were carried out at the beginning of XXI century for the first time. They allowed together with other geological-geophysical data fundamentally change the model of structure of Yenisey-Khatanga regional depression, Taimyr mountain area, Siberian Platform and Western-Siberian plate.
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Late Riphean stage of development of the Russian plate

International Geology Review, 1979
(1979). Late Riphean stage of development of the Russian plate. International Geology Review: Vol. 21, No. 2, pp. 167-180.
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Upper Riphean and Vendian sandstones of the Bashkirian anticlinorium

Lithology and Mineral Resources, 2010
The analysis of lithogeochemical data on the Upper Riphean and Vendian sandstones from the Bashkirian anticlinorium showed that sandstone associations formed in a passive sluggish tectonic regime in the middle Late Vendian were replaced by associations accumulated in the more active tectonic settings.
A. V. Maslov, E. Z. Gareev, V. N. Podkovyrov   +2 more
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Differentiation and correlation of the Riphean rocks of Eastern Siberia

International Geology Review, 1966
Experimental studies of a number of monomineralic and mixed powdered sulfide minerals reveal that electrolytic solution — and therefore, the type of transport of radicals which makes for halo deposits — will occur whenever a pair of sulfide minerals is connected by a conducting rock of whatever permeability, and the charge in equality, between the ...
G.B. Sveshnikov, I.A. Kedrinskiy
openaire   +2 more sources