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Browsing ELibrary by Title
Now showing items 13480-13499 of 20247
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(2002)An abrupt change in the coal-producing plants is established near the boundary between the Tal'bei and Seida formations and their analogs in the Pechora coal basin and the Cis-Urals. Predominant among plant remains of coal ...
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(1998)The results of palynological analysis of a section of unconsolidated deposits in the 12-m-high coastal escarpment of the Baidaratskaya Bay (68°51′N, 66°54′E), the southeastern part of the Yugorskii Peninsula, are outlined. ...
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(1999)The phytomass (the biomass of terrestrial vegetation) is one of the main reservoirs of carbon, as carbon makes up approximately 0.45 of the phytomass by weight [Ajtay, G.L., Ketner, P., Duvigneaud, P., 1979. Terrestrial ...
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(1988)In the middle of the 1970's in the Khaydarkan antimony-mercury deposit, Kirgizia, one of the present writers (Volgin) found a new copper-mercury-tin sulfide. It was called velikite after A.S. Velikiy. The composition of ...
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(2004)The speed of propagation of compressional-wave energy in the subsurface, known simply as "formation velocity," is strongly influenced by compaction, particularly in young clastic basins. Because pore pressures affect ...
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(1987)The asthenosphere of the Sea of Okhotsk is structurally very complex. The depth of its top edge, its thickness and its dip range, respectively, from 40 to over 250 km, from 35 to 160 km and from zero to 30°. We should ...
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(2003)Based on the record part of seismic oscillation records of deep-focus earthquakes registered by the global network, traveltime curves were constructed for refracted and reflected short-period seismic P waves propagating ...
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(1999)Satellite radar interferometry allows calculation of the ice-surface velocity distribution throughout the largest ice cap in the Eurasian Arctic: Austfonna in eastern Svalbard. Data on ice-cap velocity structure show strong ...
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(1996)A one-dimensional BK mass-spring model (Burridge and Knopoff, 1967) in the presence of velocity-weakening friction (in a linear form) is applied to dynamically simulate earthquakes. For theoretical analyses, a uniform ...
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(2001)A new family, a new genus, and two new species of Metazoan (class Vendiamorpha, phylum Proarticulata) are described from the Upper Vendian of the Arkhangelsk Region. The body of the animal was composed of alternating ...
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(2001)A new family, a new genus, and two new species of Metazoan (class Vendiamorpha, phylum Proarticulata) are described from the Upper Vendian of the Arkhangelsk Region. The body of the animal was composed of alternating ...
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(2002)Vendian, chiefly clastic sedimentation on the southwest of the Siberian craton is discussed under the tenet of a foreland basin that came into being in the Vendian epoch at the margin of the Siberian continent (craton) due ...
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(1989)Microfossils in the cherts of Precambrian carbonate deposits in young folded regions are found considerably more rarely than in old craton regions, like the Siberian craton and its Precambrian folded rim. Such finds are ...
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(1986)The Vendian in a stratotype area in the western part of the East European Platform includes three regional stratigraphic subdivisions: the Vilchanian, Volynian and Valdaian series, which clearly differ in structure and ...
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(1987)In the Eastern European region Vendian strata are divisible into two complexes: the lower one, only locally developed, is composed of alternating tillites, volcanics, sandy–clay rocks and dolomites; and the upper one, of ...
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(2004)Two geochemical types of volcanic ash are recognized in the Redkino Horizon of the East European Platform based on the systematics of trace elements. The first type developed in the northeastern area of the platform is ...
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(1999)Comparisons of I-Xe and Pb-Pb relative ages are made for phosphate and feldspar separates from 12 different meteorites. In all cases where I-Xe ages can be measured in phosphate, I-Xe and Pb-Pb chronometers agree within ...
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(2004)The dynamics of cosmogenic 10Be contents in the BDP-96-1 (100 to 200 m) and BDP-98-2 (200 to 600 m) cores was used to test published magnetostratigraphic scales for the Miocene section and to time the core base. Only one ...
Now showing items 13480-13499 of 20247