Results 111 to 120 of about 287 (153)
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Towards Stage Subdivision of the Vendian
Russian Geology and Geophysics, 2023Abstract —The way towards the stage subdivision of the Vendian starts with the assemblage of a complete composite geological section of this interval of the Earth’s history, a succession of geological bodies each reflecting a certain ecosystem state.
D.V. Grazhdankin +3 more
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The Journal of Geology, 1977
Am. Jour. Sci., v. 274, p. 673-824. ---1974b, No evidence for glacial origin of late Precambrian tilloids in Angola: Nature, v. 252, p. 114-116. ---1975, Tectonic framework of Late Precambrian supposed glacials, in WRIGHT, A. E., and MOSELEY, F., eds., Ice Ages: Ancient and Modern: Geol. Jour., special issue No. 6, p. 241-274. ---1976a, Reply: Am. Jour.
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Am. Jour. Sci., v. 274, p. 673-824. ---1974b, No evidence for glacial origin of late Precambrian tilloids in Angola: Nature, v. 252, p. 114-116. ---1975, Tectonic framework of Late Precambrian supposed glacials, in WRIGHT, A. E., and MOSELEY, F., eds., Ice Ages: Ancient and Modern: Geol. Jour., special issue No. 6, p. 241-274. ---1976a, Reply: Am. Jour.
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Vendian Hydrogeochemistry of the Siberian Platform
Russian Geology and Geophysics, 2021Abstract —The Vendian deposits of the Siberian Platform are represented by four regional horizons (from bottom to top): Nepa, Vilyuchan, Tira, and Danilovka. The TDS of brines in the Nepa and Vilyuchan horizons varies from 170.3 to 470.1 g/L, and the TDS in the overlying Tira and Danilovka horizons, from 84.6 to 583.1 g/L.
D.A. Novikov +4 more
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Late Precambrian Dolomites, Vendian Glaciation, and Synchroneity of Vendian Glaciations
The Journal of Geology, 1976The late Precambrian Vendian Glaciation may have been triggered by a worldwide fall of temperature following the locking up of carbon dioxide in Upper Riphean Dolomites. In this "anti-greenhouse" mechanism, the Vendian case appears to differ from Gondwana and Pleistocene events which are restricted to the poles and not worldwide in extent.
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Chapter 12 Pre-Vendian history
Geological Society, London, Memoirs, 1997It so happens that rocks of Vendian age are extensive and are well exposed in Svalbard. This applies especially to early Vendian, i.e. Varanger, with two distinctive glacial horizons as are treated in the Chapter 13. The Early Varanger (Smalfjord) episode can be correlated in most sections and so provides a reference horizon which serves approximately ...
W. Brian Harland +1 more
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Geological Society, London, Memoirs, 1997
The Vendian Period, the latest Precambrian division, and the earliest division in which several Phanerozoic methods of correlation can be applied, is a convenient time division for Svalbard. It is separated from the earlier history in which correlation has uncertainties of tens of millions of years if not more.
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The Vendian Period, the latest Precambrian division, and the earliest division in which several Phanerozoic methods of correlation can be applied, is a convenient time division for Svalbard. It is separated from the earlier history in which correlation has uncertainties of tens of millions of years if not more.
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Riphean and Vendian of the USSR
Precambrian Research, 1981Abstract The Upper Proterozoic of the U.S.S.R. is subdivided into two chronostratigraphic units according to the officially-adopted stratigraphic scale: the Riphean, 1650 ± 50−650 ± Ma, comprising four subordinate subdivisions; and the Vendian, 650 ± Ma—Cambrian.
N.M. Chumakov, M.A. Semikhatov
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