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Now showing items 21-40 of 459
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(2001)In the Urals the Devonian is represented by shelf and continental slope facies, as well as various volcanogenic rocks. Palaeontological data, including conodonts and brachiopods, are of use in regional correlation, although ...
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(2001)The Devonian of the East European Platform is chiefly represented by shallow-marine rocks of Lochkovian through Famennian age. Palaeontological evidence from various groups, including condonts, palynomorphs, ostracodes, ...
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(1997)In the Mongolian Altai, thick and widespread Devonian deposits were initially divided into two large stratigraphic complexes; the lower subdivision spanned the Eifelian Stage, and the upper one corresponded to the summary ...
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(1989)Estimates of the change in composition of magmas being intruded (proceeding from the composition of the resulting rocks) consider the change in chemical and mineral compositions of successive phases of emplacement (first, ...
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(1988)Until now, no descriptions of duranusite in Soviet deposits have been published. We found this mineral in a mercury-antimony deposit in central Tadzhikistan, whose ores are localized in complexly-deformed clastic rocks of ...
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(2004)Palaeomagnetic and faunal data have been re-evaluated on a global basis for the period from 400 Ma (early mid-Devonian) to 250 Ma (latest Permian). The boundaries of the major terranes are considered and defined. Six new ...
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(2006)In spite of significant quantity of publications, devoted to different aspects of the East European (Russian) platform geology, the joint analysis of structure and sedimentation evolution has not been made. The paper deals ...
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(2001)The ontogeny of five conodont species of the genus Icriodus, widespread in the Mosolovian and Chernoyarian horizons of the Eifelian of the central part of the Russian Platform, was studied. The extremes of the Icriodus ...
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(2001)Eurypterid (Eurypterida, Chelicerata) palaeoecology is reviewed, in light of a statistical analysis of 74 Silurian and Early Devonian eurypterid assemblages. Kjellesvig-Waering's three eurypterid 'biofacies' model is ...
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(2003)On the basis of generalizations and analysis of new materials on regional and thematic research, the main problems involved with the evolution of the Paleo-Аsian ocean and structure of the huge Ural-Mongolian Fold Belt ...
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(2001)Different stages of evolution of geological structures are recorded in time dynamics of their gravity field. The regularities of the crust evolution on the territory of Belarus were investigated through claculation and ...
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EVOLUTION OF THE SOUTHERN MARGIN OF THE DONBAS (UKRAINE) FROM DEVONIAN TO EARLY CARBONIFEROUS TIMES (2003)A Devonian-Early Carboniferous succession comprising thick clastic and carbonate sediments with interbedded volcanics was examined along the southern margin of the Donbas fold belt. Ukraine. Following initial rifting and ...
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(2004)We have analysed 129 stratigraphic sections from the Timan-Pechora basin, from its adjacent continental shelf and from the South Barents Sea basin, in order to determine whether existing models of extensional sedimentary ...
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(1987)In 1984 the authors detected corundum grains with titanium nitride inclusions in samples of compositionally complex Upper Devonian breccias and Quaternary deposits, collected near the junction of the Azov block with the ...
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(1990)The prediction of petroleum and natural gas fields (especially very large ones) is a very interesting scientific problem and a highly important economic tasks. Other publications by the present writers using examples from ...
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(1997)A representative data base is used to elucidate the history of Devonian sedimentation in the Moscow basin of the Russian platform. The Devonian section includes six rhythms of sedimentation and seven principal geological ...
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(2001)Forward and reverse numerical modeling was applied in studies of structure and stratigraphic features of the syn-rift (Late Devonian) and early post-rift (Carboniferous) evolution of the SE Dnieper-Donets depression (DDD). ...
Now showing items 21-40 of 459