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Browsing ELibrary by Title
Now showing items 13238-13257 of 21934
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(1996)
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(1996)The thermodynamics of order-disorder in mineral solid solutions are handled with symmetric formalism, whereby the mineral is treated as a solid solution between an independent set of end-members with which the range of ...
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(1993)A thermodynamic explanation for the phase size effect in mineral systems containing small crystal particles is given using the equilibrium shape of the real crystal concept. The equations obtained are in accordance with ...
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(1995)In the next ten years, a number of studies on the carbonate system are planned as part of the JGOFS/WOCE programs. The carbon dioxide system will be studied by measuring at least two of the controlling parameters; pH, total ...
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(2001)We have conducted acid–base potentiometric titrations and U(VI) sorption experiments using the Gram negative, facultatively anaerobic bacterium Shewanella putrefaciens. Results of reversed titration studies on live, inactive ...
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(2001)A thermoelastic model for calculating the high-pressure and high-temperature properties of isotropic solids is presented by extending the formalism by Thomsen and combining the resulting one with the Vinet model for static ...
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(2003)The simple theory of equation of state recently developed by Kumar is used to investigate the temperature and pressure dependence of elastic moduli of MgO. The results are found to present good agreement with the experimental ...
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(2004)The thermoelastic moduli of rock-forming minerals and their derivatives are estimated using inversion of pressure- and temperature-dependent P and S velocities. The elastic constants obtained by the new method are tested ...
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(1988)A pronounced anticyclonic intrathermocline eddy (ITE) was found in the tropical Atlantic during the institute's Mezopoligon expedition in 1985. The data indicate that such eddies survive at intermediate depths for very ...
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(2004)Thermokarst dynamics and their underlying causes are investigated and reconstructed on the basis of Muzhy weather station records (Western Siberia) of air temperature, precipitation and snow cover, and a tree-ring chronology ...
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(2004)Slab detachment or breakoff is appreciated as an important geological process, as shown by recent tomographic imaging. Using a 2-D upper-mantle model 660-km deep and 2000-km wide, we have investigated with a 2-D finite-difference ...
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(2002)Methods of nonequilibrium thermodynamics and continuum mechanics are used for studying phase transitions of the first order in deformable solids with elastic and viscoelastic rheology. A phase transition of the first order ...
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(2004)The Donbas Foldbelt forms part of a large Devonian rift cross-cutting the southern part of the Eastern European Craton. It comprises a 20-km-thick Devonian and Carboniferous sedimentary succession. Maximum burial occurred ...
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(2002)The Uralides, a linear N-S trending Palaeozoic fold belt, reveals an intact, well-preserved orogen with a deep crustal root within a stable continental interior. In the western fold- and-thrust belt of the southern Uralides, ...
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(2001)An indirect Fourier transformation applied to small-angle X-ray scattering data has been used to determine the thickness and surface properties of two common clay minerals. For an illite system, the particle density ...
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(2002)Two independent methods of crystal-size distribution analysis were compared: the Bertaut-Warren-Averbach XRD technique (MudMaster computer program) and high-resolution transmission electron microscopy (HRTEM). These ...
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(2003)The distributions of illite crystal ('fundamental particle') thickness in <0.2 μm fractions of 13 shale samples (from the Carpathian Foredeep, Poland), obtained using the Bertaut-Warren-Averbach X-ray diffraction method ...
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(2004)In order to assess the potential role of organic sulfur compounds in hydrothermal systems, we use recent advances in theoretical geochemistry to estimate the standard partial molal thermodynamic properties and parameters ...
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(1996)The rate of thiosulfate oxidation to tetrathionate by dissolved molecular oxygen was measured in aqueous suspensions of synthetic sphalerites doped with first row transition metals (Mn, Fe, Co, Ni, Cu). Pure sphalerite and ...
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(1987)There are two hypotheses regarding thiosulfates in the Black Sea: a) that they are an intermediate product of the oxidation of hydrogen sulfide and b) that they are an intermediate product of the reduction of sulfates to ...
Now showing items 13238-13257 of 21934