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Browsing ELibrary by Title
Now showing items 2327-2346 of 21934
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(2004)Cordierite samples from pegmatites and metamorphic rocks have been analysed for major [electron microprobe analysis (EMPA)] and trace elements [inductively coupled plasma mass spectrometry (ICP-MS), secondary ion mass ...
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(2003)Paleobotanical characteristics based on studied plant macrofossils and miospores from Jurassic sediments of the Kansk coal basin are discussed. The studied samples characterize the formation stratotypes and borehole sections. ...
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(2003)Recently, Purcell has discussed the influence of gravity on load-induced perturbations of compressible, viscoelastic plane-Earth models, where the contributions arising from initial stress and internal buoyancy have been ...
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(2001)Raman and XANES spectroscopy were carried out on a series of glasses of composition 44CaO-12Al2O3-44SiO2, formed at pressures up to 10 GPa by isobaric quench from a temperature of 2200°C. The most significant changes in ...
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(2003)The structure of coesite has been determined at ten pressures up to a maximum of 8.68 GPa by single-crystal X-ray diffraction. The dominant mechanism of compression is the reduction of four of the five independent Si-O-Si ...
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(2002)Polycrystalline Fe3C (cementite) was compressed in a neon pressure medium to 30.5 GPa at 300 K using diamond-anvil cell techniques. Angular dispersive X-ray diffraction of Fe3C was measured using monochromatic synchrotron ...
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(1989)Since the middle of the 1970's, the Yuzhmorgeologiya Survey had been systematically studying the part of the Northeast Pacific Basin near the equator by the methods of seismoacoustic profiling and echo sounding, combined ...
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(2003)Compressional and shear wave velocities of ringwoodite (gamma-Mg(2)SiO(4)) were measured on a polycrystalline specimen to 12 GPa at room temperature using ultrasonic interferometry techniques. Velocity measurements at ...
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(2002)We performed two-dimensional finite-element numerical modeling of subduction to study the deformation and failure pattern of an overriding plate. This plate has elasto-plastic rheology with strain weakening and contains a ...
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(2002)Compressional wave velocities (VP) at above-solidus temperatures and at 1 GPa were obtained for a granite and amphibolite, which are considered to be major constituents of the continental crust. The temperature variation ...
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(2005)An algorithm for the construction of phase diagram sections is formulated that is well suited for geodynamic problems in which it is necessary to assess the influence of phase transitions on rock properties or the evolution ...
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(2003)In sediments, the diaromatic carotenoid isorenieratene can undergo a wide range of molecular transformations, including cyclisation reactions via a Diels-Alder mechanism resulting in either mono- and diaromatic compounds ...
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(2001)Solute discharge moments (mean and variance) are computed using numerical modeling of flow and advective transport in two-dimensional heterogeneous aquifers and are compared to theoretical results. The solute discharge ...
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(2003)As part of a wider study of the nature and origins of cation order-disorder in micas, a variety of computational techniques have been used to investigate the nature of tetrahedral and octahedral ordering in phengite, ...
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(2001)The nature of Al–Si ordering across the tetrahedral sites in muscovite, K2Al4(Si6Al2O20)(OH)4, was investigated using various computational techniques. Values of the atomic exchange interaction parameters J l were obtained. ...
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(2002)Describes the application of computer-graphics animation techniques to enhance the understanding of mineral crystal growth. Choice of core mineral structure; Effects of differential growth rates on modified crystal habits; ...
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(2004)Based on the analysis of published data, results of experimental investigations, and computer simulation, the constants of ion exchange reactions on clay minerals were determined and the factors affecting these constants ...
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(1996)A previously developed software was used to process earthquakes recorded at different epicentral distances by an IRIS-2 digital seismic system. The following statistical uncertainty estimates of preliminary S-wave onset ...
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(1998)Monte Carlo and molecular dynamics computer simulations are now able to provide detailed information concerning the structure, dynamics, and thermodynamics of pore fluids in 2:1 clays. This article will discuss interparticle ...
Now showing items 2327-2346 of 21934