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Browsing ELibrary by Title
Now showing items 4026-4045 of 21821
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(2003)The solubility of silver sulphide (acanthite/argentite) has been measured in aqueous sulphide solutions between 25 and 400°C at saturated water vapour pressure and 500 bar to determine the stability and stoichiometry of ...
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(1995)A new sodium-selective glass electrode was used to measure the association constants of the sodium-sulfate (NaSO4−) and sodium-borate (NaB(OH)40) ion pairs at temperatures from 50° to 200°C. These data were used to generate, ...
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(1989)The thermal equilibrium for the reaction Fe-staurolite+quartz=almandine+sillimanite+H
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EXPERIMENTAL DETERMINATION OF TRACE ELEMENT PARTITION COEFFICIENTS IN CULTURED BENTHIC FORAMINIFERA (2001)We present the first trace metal partition coefficients obtained from reproducing cultures of deep-sea benthic foraminifera. Paleoceanographically important species, including juvenile Bulimina marginata, Cibicidoides ...
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(1995)In order to more fully establish a basis for quantifying the role of amphibole in trace-element fractionation processes, we have measured pargasite/silicate melt partitioning of a variety of trace elements (Rb, Ba, Nb, Ta, ...
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(2005)This study performed equilibrium experiments in order to evaluate previously proposed formulations of the garnet (Grt)-clinopyroxene (Cpx) thermometer as applied to eclogites. The starting material is fine-grained powder ...
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(1996)Partition coefficients of H2O between β and γ phases of olivine stoichiometry and coexisting ultra mafic melt have been estimated to be > 0.1 +/- 0.04 (1σ) and 0.04, respectively; based on experiments at 15-16.5 GPa, ...
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(2005)Montmorillonite was equilibrated with high normality Cl - solutions to assess the possible presence of MeCl + ion pairs in smectite interlayers which is suggested by chemical modeling of cation exchange experimental studies. ...
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(2004)Chemical and stable carbon isotopic modifications during the freezing of artificial seawater were measured in four 4 m3 tank incubations. Three of the four incubations were inoculated with a nonaxenic Antarctic diatom ...
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(1993)We present experimental results on the stability of carbonates up to 50 GPa and at high temperatures (1500–2500 K). The experiments were conducted in a laser-heated diamond anvil cell and the run products were characterized ...
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(2002)The solubilities of Ar and Xe in Fe-free synthetic haplogranitic and tholeiitic melts were experimentally determined in the pressure range of 1-11 GPa and at temperatures between 1500 and 2000°C. Experiments were performed ...
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(2003)We have investigated the partitioning of F, Cl, Br, and I between coexisting silicate and sulfide liquids at 0.9 to 1.8 GPa pressure and temperatures between 1150degrees and 1450degreesC, and the partitioning of Cl between ...
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(2002)Fission track analysis has seen a major expansion in application to general geological problems reflecting its advances in understanding the temperature dependence of track annealing and track length distributions. However, ...
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(2003)The Poincare flow (also known as the tilt-over mode) in a precessing cavity filled with water is investigated experimentally. Assuming that the flow is mainly a solid-body rotation, we have used three independent techniques ...
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(2002)We present an experimental study of synthetic peraluminous granite doped with H2O, B, P, and F, which confirms that aluminosilicate melt, hydrous fluid, and hydrosaline melt (high-temperature brine) can stably coexist at ...
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EXPERIMENTAL EVIDENCE OF TRANSFORMATION PLASTICITY IN SILICATES: MINIMUM OF CREEP STRENGTH IN QUARTZ (2003)Mechanical weakening due to solid state transformation of mineral phases has long been proposed to be a significant mechanism for localization of deformation in the Earth's lithosphere and the mantle transition zone. ...
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(2003)To simulate metasomatism at convergent plate boundaries, the process of phengite dehydration, followed by reactions between the expelled fluid and a model mantle material consisting of forsterite + enstatite, was investigated ...
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(2001)We experimentally investigate the effect of crystals on the fragmentation behavior of a three-phase (melt+gas+crystals) system under rapid decompression. Starting materials are cylinders of hydrated haplogranite melts ...
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(2004)The quartz-water-oil-gas system has been experimentally studied with the objective of investigating the trapping of petroleum and aqueous inclusions in quartz at different water/oil (W/O) ratios (0/100, 5/95, 10/90, 20/80, ...
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(2003)We present the results of a series of hydrothermal experiments on grains from two partially metamict zircon samples from Sri Lanka in the temperature range 350 to 650 °C and with different solutions (2 M AlCl3, 2 M CaCl2, ...
Now showing items 4026-4045 of 21821