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Now showing items 41-60 of 197
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(2001)The first records of Frasnian Rugosa from Mongolia are discussed, including Nicholsoniella golovtshenkoae sp. nov., N. hurenensis sp. nov., Aulacophyllum exiguum sp. nov. and Temnophyllum ruzhentsevi sp. nov.
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(1990)The Dnieper-Donets paleorift (DDR) of Late Devonian age is a typical province of continental, subalkalic and alkalic volcanism that was similar in its principal parameters to the volcanism of classical Cenozoic rift zones. ...
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(1989)In the cratonic basin that was studied by us, which inherited the structure of the Devonian rift trough, the Lower Carboniferous gray coal measures and overlying Lower and Middle Carboniferous carbonate and clastic deposits ...
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(2004)Earlier studies of individual fluid inclusions in salt minerals of some Devonian evaporite basins showed that the brines in those basins were of chloride type with a high concentration of Ca2+. The genetic significance of ...
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(2021)Granitoid magmatism is widespread in the Mongolian Altai, and it provides critical information to understand the crustal formation, evolution, and growth. This study reports newly investigated petrography, whole–rock ...
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GEODYNAMIC EVOLUTION OF THE EUROPEAN VARISCAN FOLD BELT: PALAEOMAGNETIC AND GEOLOGICAL CONSTRAINTS (1997)The Variscan fold belt of Europe resulted from the collision of Africa, Baltica, Laurentia and the intervening microplates in early Paleozoic times. Over the past few years, many geological, palaeobiogeographic and ...
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(1989)Analysis of the evolution of Phanerozoic stratigraphic complexes of the western margin of the East European craton (EEC) and the Central European Platform (CEP) shows that their formation depended on the corresponding ...
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(2006)This paper presents new data for the structure and age of the Paleozoic rocks in the Ikat-Bagdarin zone of the West Transbaikalia region. Reported for the first time is the wide development of various Devonian and Carboniferous ...
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(2003)The objectives of this pyrolysis investigation were to determine changes in (1) oil composition, (2) gas composition and (3) gas carbon isotope ratios and to compare these results with hydrocarbons in reservoirs. Laboratory ...
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(1999)Abstract-Two clay fractions of a Cambrian claystone from Estonia, consisting essentially of illite and 20% expandable illite-smectite, (I-S) were treated with C12 and C,8 alkylammonium cations for K-exchange. Both the ...
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(1999)Based on the analysis of spatial-temporal distribution of Tabulata and other benthic organisms, organogenic buildups, and lithologic data, position and configuration of seas and continents are depicted for Early Devonian ...
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(2001)The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction ...
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(2004)Single grains of detrital white mica from two different synorogenic sediments in the Southern Urals were analysed using the insitu ultraviolet laser ablation Ar609 Ma age group is phengitic in composition (Si 3.3732 Ma age ...
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(2000)Widespread penecontemporaneous igneous activity affected NW Russia (the Kola Peninsula and adjoining areas to the SE around Arkhangelsk) during the Late Devonian (360–380 Ma). Magmatism varies from tholeiitic basalts, ...
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(2003)Late Devonian is a crucial boundary in the evolution of the Uralian active margin of the East European Craton. This time is characterized by the beginning of collision of the East European continent with the Magnitogorsk ...
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(2001)Late Devonian magmatism in the Pripyat Trough, Belarus was associated with the development of the intraplate Pripyat-Donets Palaeorift. Magmatic rocks belong to an alkali-ultrabasic-alkali-basaltoid suite. These are ...
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(2003)A Late Devonian paleogeographic reconstruction for the territory of the West Siberian Plate and the surrounding regions of the Altai-Sayan folded area and the Siberian Platform has been proposed. Zones of continental, ...
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(2000)Palynomorph distribution in Euramerica and western Gondwana, from the Latest Givetian to the Latest Famennian, may be explained, to some extent, by climatic changes. Detailed miospore stratigraphy dates accurately the ...
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(2004)Correlation and synthesis of published and new structural, paleomagnetic and geochronological data from Central Asia show the important role of strike-slip faulting in their evolution. The pattern of major strike-slip ...
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(2003)We used 13C values to identify lichen metabolism in the globally distributed Early Devonian (409-386 Ma) macrofossil Spongiophyton minutissimum, which had been alternatively interpreted as a green plant of bryophyte grade ...
Now showing items 41-60 of 197