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Browsing ELibrary by Title
Now showing items 9525-9544 of 21934
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(1987)Data accumulated in recent years make it possible to compare two components of processes at depth, namely thermal expansion and lithostatic compression, or, strictly speaking, thermal and pressure-induced deformations or ...
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(2000)Caldera-forming eruptions of silicic magmas result from a complex coupling of the mechanics and fluid dynamics of the associated magma chamber. Field studies of caldera-forming eruption products suggest that great pressure ...
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(2001)In order to reduce forces in units subjected to shock loads, the damping devices absorbing the energy are applied. Characteristics of deformation wave propagation in the devices are considered. The wave is excited in ...
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(2000)Pressure solution is an important process in sedimentary basins, and its behaviour depends mainly on the sediment rheology and temperature distribution. The compaction relation of pressure solution is typically assumed to ...
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(2004)The electrical behaviour of marble samples from Penteli Mountain was studied while they were subjected to uniaxial stress. The application of consecutive impulsive variations of uniaxial stress to thirty connatural samples ...
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(2003)In most mantle convection studies with variable thermal expansivity only the pressure dependence is considered. Here we investigate the effect of temperature- and/or pressure-dependent thermal expansivity α on the distribution ...
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(2004)Effects of external stress and pore pressure variations on the seismic signature of fractured rocks remain of interest to geoscientists and practicing geophysicists. Commonly, the effects are modeled theoretically, assuming ...
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(2004)A polycrystalline sample of natural laumontite (Pleasant Valley, Connecticut) was studied up to 6.8 (1) GPa at room temperature using monochromatic synchrotron X-ray powder diffraction and a diamond-anvil cell. A methanol: ...
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(1996)Our recently developed interaction potential (Belonoshko and Dubrovinsky, 1995) was slightly corrected to reproduce experimental Raman frequencies at 1 bar and 300 K. Molecular and lattice dynamics study with the corrected ...
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(2003)The crystal structure of a synthetic Rb analog of tetra-ferri-annite (Rb-TFA) 1M with the composition Rb0.99Fe2+3.03(Fe3+ 1.04 Si2.96)O10.0(OH)2.0 was determined by the single-crystal X-ray diffraction method. The structure ...
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(2001)The thermoelastic parameters of natural andradite and grossular have been investigated by high-pressure and -temperature synchrotron X-ray powder diffraction, at ESRF, on the ID30 beamline. The P–V–T data have been fitted ...
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PRESSURE-VOLUME-TEMPERATURE EQUATIONS OF STATE: A COMPARATIVE STUDY BASED ON NUMERICAL SIMULATIONS (2002)The P-V-T equation of state (EoS) models of Birch-Murnaghan, Vinet and Poirier-Tarantola have been compared with one another and discussed in the light of their ability to reproduce thermoelastic functions and parameters ...
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(1995)A primary carbonate phase with Ca/(Ca+Mg) in the range 0.85–0.95 has been identified in a metasomatized, depleted harzburgite nodule from Montana Clara Island, Canary Islands; textural relations show that this carbonate ...
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(1984)Most abyssal basalt can be divided into two groups based on major and minor element compositions of the glassy rinds of pillow lavas. Crystal differentiation models cannot relate one group to the other. Instead, depth of ...
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(1988)The mineralogical-geochemical properties of the rocks, together with their lithology, can be used to reconstruct the original color of the rocks of the Udokan series. Originally red complexes corresponding to certain of ...
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(1990)The Black Sea is a present-day analog of a typical past situation that promoted the development of sedimentary deposits rich in organics, including oil shales and the parent rocks of oil. In many cases the organic matter ...
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(1988)In aluminous gneiss of the Loukhi formation near the top of a small hill, a bed of garnet-zoisite gneiss was detected similar to rocks earlier reported in the same upper formation by N.G. Sudovikov. This garnet-zoisite ...
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(2001)The genesis of carbon-rich rocks (shungite rocks) and accompanying phtanites (lydites) from the Early Proterozoic (2,1-2,0 Ga) of the Transonega Formation in Karelia (Eastern Fennoscandian Shield) is discussed. Some features ...
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(1998)The Lesnaya Varaka ultramafic alkaline complex in the northeastern Fennoscandian Shield (Kola Peninsula, NW Russia) is a concentrically-zoned intrusion with a dominantly dunitic core (Fo85-92) surrounded by clinopyroxenites. ...
Now showing items 9525-9544 of 21934