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Browsing ELibrary by Title
Now showing items 3875-3894 of 21253
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(2002)This paper presents new data from palaeomagnetic investigations on the Upper Palaeozoic and Mesozoic geological units from the Siberian platform and the Mongol–Okhotsk suture zone. Within the southern portion of the ...
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(1988)Little is known about the evolution of the olivine fabric pattern in naturally deformed ultramafic rocks. Moreover, it is especially important to ascertain the trends of variation of the olivine fabric because peridotite ...
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(2001)The paper reviews and integrates new results on the evolution of the Paleo-Asian Ocean and its related geodynamics and geology of Altai-Sayan Region (ASR) in Central Asia. A revised terrane classification based on ...
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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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(1989)An important factor both in geodynamic modeling of the development of sedimentary basins and in investigating their oil and gas potentials is the analysis of their thermal environment as a function of time. There have been ...
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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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(1992)Anhydrous and amphibole-bearing peridotite xenoliths occur in roughly equal quantitites in the Bartoy volcanic field about 100 km south of the southern tip of Lake Baikal in Siberia (Russia). Whole-rock samples and pure ...
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(1988)We conducted a special study of tholeiite volcanism of the eastern Pacific, using multivariate statistical methods. It was based on our own and published analyses of samples obtained in deep-sea dredging and drilling in ...
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(1999)The Uzon caldera is a genetically complex structure, which was formed during several episodes of tectono-magmatic activity. It is made up of basalts, basaltic andesites, and dacites, the products of the normal evolution ...
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(2002)The evolutionary history and phylogenetic relationships of eight Early Triassic ammonoid genera, Xenoceltites, Bajarunia, Nordophiceras, Pseudosvalbardiceras, Boreoceras, Praesibirites, Parasibirites, and Sibirites, are ...
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(2004)Processes lasting for milliseconds to some ten thousand years are described by a viscoelastic model of the Earth that has been basically developed in the first half of the 20th century. To describe longer processes, lasting ...
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(2003)Fossil bivalves bearing oblique ribs first appeared in the Mid Ordovician but their diversity remained low during the Palaeozoic. The diversity soon increased after the Early Triassic, peaking in the Early Cretaceous. The ...
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(1996)The Eocene evolution of the diatom flora of oceanic and epicontinental sea basins is discussed within the context of some abiotic factors. It was found that from the beginning of the Eocene to the end of the Lutetian, the ...
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(1995)A procedure for quantifying thermal histories from apatite fission-track data is presented. Given an appropriate annealing algorithm, or forward model, the problem is to determine a best-fit thermal history and quantify ...
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(2001)Using higher-order ray theory, we derived exact elastodynamic Green functions for three simple types of homogeneous anisotropy. The first type displays an orthorhombic symmetry, the other two types display transverse ...
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(2001)Process of hydraulic breakage of rock with the use of viscous fluid has been considered. Mathematical model of the process has been developed with the use of differential equations. Various factors influencing the conditions ...
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(2002)Extended X-ray absorption fine-structure (EXAFS) spectroscopy is used to characterize the local coordination of selected rare-earth elements (Nd3+, Sm3+, Dy3+, Yb3+) coprecipitated with calcite in minor concentrations from ...
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(2003)A minimal horizontally homogeneous simulation model of the atmosphere allowing calculation of the Earth's radiative budget components is proposed in this paper. The atmosphere is modeled as a set of horizontal layers with ...
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(1995)The Siberian Traps represent the largest known Phanerozoic manifestation of continental flood volcanism. The general agreement is now that the volcanism was of short duration (# 1 m.y.) and was synchronous with the ...
Now showing items 3875-3894 of 21253