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Browsing ELibrary by Title
Now showing items 3631-3650 of 21879
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(2003)Depth-distance dependent bias in body-wave magnitude is investigated using the International Seismological Centre (ISC) dataset from 1978 to 1993. Large deviations in M(b) determination at varying epicentral distances using ...
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(1997)A collection of ground-motion recordings of small to moderate (Ms <= 6.2) earthquakes has been obtained in the epicentral area of the Racha earthquake, 29 April 1991 (Ms = 7.1), which occurred in the southern slope of the ...
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(2002)The Adam-Gibbs equations describing relaxation in silicate melts are applied to diffusion of trace components of multicomponent liquids. The Adam-Gibbs theory is used as a starting point to derive an explicit relation ...
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(2003)One of the most commonly used methods of estimating the size of shallow earthquakes is the surface-wave magnitude scale, $M s $. It has been known since the inception of the scale that the $M s $ of a seismic disturbance ...
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(2002)We analyze seismic and acoustic data from a series of controlled truck bomb explosions to develop scaling laws and functional relations between charge size and various waveform properties. The explosions had yields of 3-12 ...
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(1995)Currently available models to simulate naturally occurring mineral–melt equilibria use mineral components limited to tholeiitic basalt compositions and thus they cannot be used for alkali-rick basalts and basanites. To ...
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(1996)Results of joint research on macrofauna and conodonts are presented in the paper. Based on new data, the relationship between conodont and regional zones was established for the first time, and boundaries between the stages ...
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(2003)One of the main decisions to be made in operational hydrology is to estimate design floods for safety purposes. These floods are generally much rare events that have already been systematically recorded and consequently ...
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(2002)Most unroofing mechanisms invoked for the exhumation of blueschist-plus-eclogite terranes, including corner-flow and extensional collapse of the orogenic wedge, predict steep unroofing paths for the deeply-buried rocks and ...
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(2002)Episodes of endemism during Sinemurian-Pliensbachian times are described from synthetic data (publications and unpublished collections) about ammonite faunas of the western reaches of the Tethys. The Lusitanian, Sub-Betic ...
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(1989)Our experimental simulation of the dehydration of silicic water-bearing melts, together in petrographic and physicochemical analysis of the natural features of silicic volcanic activity, confirms that silicic glasses of ...
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(1998)By the example of the Siberian and West Kalba (Kazakhstan) gold-ore fields, the peculiarities of geochemical-anomaly manifestation in ore fields formed in various folded structures of the Earth's crust are considered. These ...
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(2001)A theoretical model is proposed for diamond formation in the crust of the Ukrainian Shield. The temperatures required for the formation of diamonds are sustained by overheated magmatic material of mantle diapirs (identified ...
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(2003)The two-phase theory for compaction and damage proposed by Bercovici et al. (2001a, J. Geophys. Res., 106, 8887-8906) employs a nonequilibrium relation between interfacial surface energy, pressure and viscous deformation, ...
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(2002)The thermochemistry of anhydrous sulfates (anglesite, anhydrite, arcanite, barite, celestine) was investigated by high-temperature oxide melt calorimetry and differential scanning calorimetry. Complete retention and uniform ...
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(1999)The enthalpy of formation of kaolin polymorphs at 298 K has been determined by dropsolution calorimetry into molten lead borate at 975 K. Corrections have been made for impurities in the samples. The standard enthalpy of ...
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(1997)Transposed temperature drop calorimetry at 977 K was used to study the energetics of natural manganese dioxides (pyrolusite and ramsdellite) and oxyhydroxides (manganite and groutite). The structures of these minerals are ...
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(2002)The energetics of multicomponent diffusion in molten CaO-Al2O3-SiO2 (CAS) were examined experimentally at 1440 to 1650°C and 0.5 to 2 GPa. Two melt compositions were investigated: a haplodacitic melt (25 wt.% CaO, 15% ...
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(2002)Global energy balances provide a useful framework for assessing the operation of numerical geodynamo models. We apply a spectral decomposition to the magnetic and kinetic energy equations to assess how the magnetic field ...
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(1998)The energetics of a set of synthetic iron oxides and oxyhydroxides were determined by transposed temperature drop calorimetry and high temperature solution calorimetry using sodium molybdate as a solvent at 979 K. The ...
Now showing items 3631-3650 of 21879