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Browsing ELibrary by Title
Now showing items 8310-8329 of 21936
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(2001)The present investigation measures the fractal dimensions of the fracture surfaces of the gabbro specimens fractured at various loading rates covering static and dynamic loading, and explores the relationship between the ...
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(2002)When performing Surface Nuclear Magnetic Resonance (SNMR) measurements in some regions of Russia where quite conductive layers are encountered, it has been observed that erroneous interpretations were sometimes made with ...
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ON THE ADVECTION OF SHARP MATERIAL INTERFACES IN GEODYNAMIC PROBLEMS: ENTRAINMENT OF THE D'' LAYER (2001)The D'' layer is a dense and chemically distinct layer at the base of the convecting mantle. Numerical modeling of the entrainment of this layer by mantle convection requires the solution of the advective transport equation ...
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ON THE AGE AND EXTENT OF THE MAXIMUM LATE PLEISTOCENE ICE ADVANCE ALONG THE BALTIC-CASPIAN WATERSHED (2004)In northwestern European Russia glacial limits are determined using both geomorphological and stratigraphical criteria. Until the late 1940s there was general agreement that a single Valdaian glaciation had followed the ...
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(1990)Our study of bryozoans has enabled us to date the Cretaceous-Paleogene boundary deposits more reliably. Of particularly great interest are the bryozoans from two sections far apart, where they occur in mass quantity: in ...
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(1990)The gneisses, granite-gneisses and migmatites on the shore of Kandalksha Bay, in the northwestern White Sea area, are traditionally assigned to the very old Saami complex of the Baltic shield. This article will discuss the ...
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(2004)The succession of ammonite assemblages in the central regions of the Russian Platform from the Virgatites virgatus Zone (Middle Volgian Substage) to the Surites tzikwinianus Zone (Ryazanian Stage) is discussed. The analysis ...
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(2002)Laminar entrainment of starting plumes with compositional buoyancy has been explored in a series of laboratory experiments. Two types of starting plume have been identified within the range of viscosity ratio εas of 10.4-856 ...
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(2002)The boron concentration in relictant hydrothermal ore-forming fluids captured in the mineral fluid inclusions from various hydrothermal deposits (gold, gold-platinum, tin, and some others) was studied. The fluid inclusions, ...
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(2003)A model that accounts for contributions to the total surface area (SA) by different size fractions of the soil is considered from a theoretical point of view. Calculations, based on continuous particle sizes and forms, ...
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(1999)The decomposition of the polynuclear Keggin Al13 species (Al13O4(OH)24(H2O)127+ or Al13) has been examined as a function of pH (2.06 =< pH =< 3.50), ionic strength (I = 0.1 and 1.0) and temperature (10°C =< T =< 65°C) using ...
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(2002)The state of the classification of benthic secreting Foraminifera is reviewed. The classification, which ranks the Foraminifera as a class, is modified using the criteria of Fursenko's systematics (morphological, ontogenetic, ...
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(2000)Cluster analysis has the potential to quantify the size and characteristics of groups or clusters of grains and crystals within a rock texture. We present two techniques: (1) the complete linkage hierarchical cluster ...
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(2001)A technique to generate integrated large-scale environmental maps of territories is put forward. It is based on analysis of the correlation between the ability of the natural environment to sustain the pressure of economic ...
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(1998)The available data on compositional zoning in grossular-andradite (grandite) garnets occurring at different scales, mainly due to the variations of their Fe3+/Al ratios, and the hypotheses on the origin of this zoning are ...
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(1990)Study of regions of the lateritic weathering of carbonatites shows that among the supergene products developed in them, rocks differing essentially in composition can be distinguished, and that these correspond to fundamentally ...
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(2002)The data available on the crustal structure of the Balygychan-Sugoi Trough and the mineralogy and geochemistry of the Mesozoic and Cenozoic gabbro, acid volcanics, and post-magmatic minerals of the Dukat Au-Ag ore field, ...
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(2001)The compositional characteristics of mantle xenoliths of the grospydite and coesite depth subfacies from the Internatsional'naya, Aikhal, Udachnaya-West, Udachnaya-East, Yubileinaya, Mir, Zarnitsa, Komsomol'skaya, Sytykanskaya, ...
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(2002)In this paper we present an analytical formulation of the derived distribution of peak flood and maximum annual peak flood, starting from a simplified description of rainfall and surface runoff processes, and we show how ...
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(1997)The main difficulty in using the Coulomb-Mohr theory for estimating shear as a mode of failure is that this theory does not take into account the tilt or rotation of the shear surface at a given strain, which have to be ...
Now showing items 8310-8329 of 21936