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Now showing items 6042-6061 of 42285
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(1999)A series of shock-recovery experiments were carried out on the Murchison CM carbonaceous chondrite by using a single-stage propellant gun. The Murchison samples were shocked in nine experiments at peak pressures from 4 to ...
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(2002)Partition coefficients (DBemineral/melt) for beryllium between hydrous granitic melt and alkali feldspars, plagioclase feldspars, quartz, dark mica, and white mica were determined by experiment at 200 MPa H2O as a function ...
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(1995)The purpose of this work is to determine both the gas and oil potential of Type II and Type III organic matter in open and closed systems. As it is not possible to measure directly the gas generated at various depths from ...
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EXPERIMENTAL SIMULATION OF SANDSTONE INTERACTION WITH NA-BEARING ALKALIC SOLUTIONS IN A FLOW REGIME (2004)An improved filtration set-up has been designed for the experimental simulation of solution-rock interaction in a flow regime within a wide range of temperature (20-300°C), pressure (1-100 MPa), and solution pH (2-14). The ...
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EXPERIMENTAL SIMULATIONS OF GAS-DRIVEN ERUPTIONS: KINETICS OF BUBBLE GROWTH AND EFFECT OF GEOMETRY (1998)Simulated gas-driven eruptions using CO2-water-polymer systems are reported. Eruptions are initiated by rapidly decompressing CO2-saturated water containing up to 1.0 wt.% CO2. Both cylindrical test cells and a flask test ...
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(2002)Fundamental controls on the occurrence and distribution of clay minerals in sedimentary rocks are determined by the application of experimental data relating to their thermodynamic stabilities and the kinetics of clay ...
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(1997)The comprehensive understanding of halite dissolution facilitates assessment of long-term radiogenic waste storage strategies, quantitative description of evaporite deposit formation and optimization of industrial processes. ...
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(1997)The dissolution rates of compressed halite powders were measured using rotating disk techniques at constant halite saturation states and in the presence of trace concentrations of aqueous F-, Br-, and I-. All experiments ...
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(1999)Oxygen and hydrogen isotope fractionation factors between brucite and water were experimentally determined by chemical synthesis techniques at low temperatures of 15° to 120°C. MgCl2, Mg3N2, and MgO were used as reactants, ...
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(2005)In light of recent studies that show oxygen isotope fractionation in carbonate minerals to be a function of HCO3− and CO32− concentrations, the oxygen isotope fractionation and exchange between water and components of the ...
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(1997)The interactions between each of the metal ions copper(II), cadmium(II), and lead(II) in aqueous solution and the surfaces of the minerals muscovite, biotite, and perthitic feldspar have been studied using batch sorption ...
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(1995)In the 16 years since the Sedona Conference on the behaviour of trace elements in silicate systems, numerous studies providing new data have filled many of the gaps in knowledge of trace-element partitioning evident at ...
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(2004)Gas hydrates grown at gas-ice interfaces were examined by electron microscopy and found to have a sub-micrometer porous structure. In situ observations of the formation of porous CH4- and CO2-hydrates from deuterated ice ...
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(2001)The speci®c aim of this paper is to ®nd an experimental methodology which could measure crack density in rock and its in¯uence on the behaviour of the rock material. The results of both experimental and numerical simulations ...
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(2001)The mobility of lanthanides (Lns) accompanying interactions of powdered andesitic rocks with acidic hot spring water and acidic hot spring water vapor/steam was studied in the experiments set up in the field. At the early ...
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(1995)The kinetics and thermodynamics of the coprecipitation of U(VI) with Fe(III) oxyhydroxides have been studied under controlled laboratory conditions, by means of chemical solution and spectroscopic techniques. The monitoring ...
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(1995)The solubility of gibbsite was measured at 35 and 80°C, and the solubility of portlandite was measured at 25, 35, and 80°C, each as a function of pH and malonate concentration. The gibbsite solubility data can be satisfactorily ...
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(2002)The solubility of the albite-paragonite-quartz mineral assemblage was measured as a function of NaCl and fluorine concentration at 400°C, 500 bars and at 450°C, 500 and 1000 bars. Decreasing Al concentrations with increasing ...
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(2002)Solubility of boehmite (from 90 to 300 °C) and gibbsite (at 44.5 °C) was measured as a function of NaF concentration in alkaline NH4OH-NH4Cl-(NaCl) solutions at saturated vapor pressure. The marked increase of boehmite and ...
Now showing items 6042-6061 of 42285