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Now showing items 41-60 of 120
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(2001)On the basis of T- and AF-demagnetisation carried out in the course of studies of Neo-Proterozoic paleobasalts (of the Volyn Series, Lower Vendian) and terrigenous rocks (of the Grushki Suite, Lower Vendian and of the ...
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(2002)Paleomagnetic results from an Upper Vendian sedimentary sequence exposed along the White Sea shoreline, NW Russia are described. These classical exposures have been the subject of intense paleontological investigations due ...
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(1985)Abstract Paleomagnetic research in the Siberian area provides new data to derive models of relative horizontal movements and the process of amalgamation or consolidation of the Siberian plate. Comparison of the Apparent ...
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(2003)The carbonate rock investigation was based on the combined analysis of U-Pb- and Rb-Sr-systematism for the same samples. For the first time in the practice of studying the Upper Yudoma carbonate rocks of Eastern Siberia ...
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(2001)The subalkaline magmatism in the western slope of the Urals is an indicator of rifting processes, which accompanied the splitting of the Rhodinia supercontinent at the boundary of the Late Proterozoic and Early Paleozoic. ...
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(1998)Phosphorites of various types occur in the Phanerozoic sedimentary cover of the Russian Craton. They were deposited in six phosphorite basins, all of which contain economic deposits. These basins are grouped into peri- and ...
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(2004)Based on own laboratory experience and a literature review, techniques for processing of different sedimentary lithologies and microscopical investigation in Neoproterozoic-Cambrian sequences are described. Emphasis is ...
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(1998)`Old' (Vendian–Early Cambrian) phosphorites of the World demonstrate `seawater-like' patterns in their rare-earth element (REE) distributions but are depleted in heavy REE. They also show a broad range of variation in total ...
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(1994)A combined mineralogical, chemical, morphological and Rb-Sr isotopic study of “blue clays” from the Lower Cambrian Lontova unit shows that these minerals contain three generations of illite. The oldest detrital 2M illite ...
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(2001)The Riphean to Vendian ( ≈1600–540 Ma) sedimentary succession of the southeastern margin of the Siberian platform is 12–14 km thick and consists of terrigenous-carbonate successions termed, from oldest to youngest, the ...
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(2002)Microbiota from cherts of the Vendian Yudoma Group, the terminal one in succession of Precambrian deposits of the Uchur-Maya region, southeastern Siberia, is described and analyzed. Dominant in the Yudoma microbiota are ...
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(1996)There are good grounds to correlate the Lower and Upper Sinian in China with the Baikalian and Yudomian (Vendian) in Siberia, correspondingly. Their comparison, based on event stratigraphy, is corrected by data on stratigraphy ...
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(2004)Three new genera and five new species of uncertain taxonomic position, i.e., Solza margarita gen. et sp. nov., Parvancorina sagitta sp. nov., Karakhtia nessovi gen. et sp. nov., Temnoxa molliuscula gen. et sp. nov., and ...
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(1986)The present paper serves as a review on the stratigraphy and lithological characteristics of the Cambrian–Vendian boundary beds in the northwestern part of the East European Platform. This transition interval is represented ...
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(1988)Much attention has recently been paid to the structure of kimberlite fields at different crustal levels. Here we try, from the results of mass logging of wells drilled in the Malaya Botuobuya district, to clarify whether ...
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(2003)The subdivision and correlation scheme of the Vendian Complex is revised based on new data from outcrops along the eastern margin of the Baltic Shield (the southeastern White Sea area) and recently drilled boreholes. ...
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(2000)Analysis of recently reported numerous U-Pb dates from zircons from Vendian-Lower Cambrian volcanogenic rocks demonstrated that they depend on various factors, especially on postdepositional loss of radiogenic lead. ...
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(2001)We report generalized paleomagnetic data on the Vendian-Cambrian island-arc complexes of the southwestern framing of the Siberian Platform. They allow restoration of the arrangement of fragments of paleoisland arcs in the ...
Now showing items 41-60 of 120