Browsing Геология России by Subject "WATER"
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Browsing Геология России by Subject "WATER"
Now showing items 1-20 of 51
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(1999)An empirical method is presented that allows the determination of the individual contributions of anions and cations to the effect of dissolved salts on hydrogen isotope fractionation in aqueous systems (isotope salt ...
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(2002)The effect of pressure and temperature on the dihedral angles of aqueous fluid in a pyrope matrix was investigated. Experiments were performed on an H2O-pyrope system in a multianvil apparatus over the pressure and temperature ...
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(2001)Molar absorption coefficients (molar absorptivities) of the near infrared combination bands at 4500 and 5200 cm-1 assigned to OH groups and H2O molecules, respectively, were determined for glasses of dacitic, andesitic and ...
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(1998)A mechanism of diffusion of isotopically tagged water in crystalline quartz by molecular diffusion and network exchange is compared to previous experiments. Three experimental factors are explained by this mechanism. (1) ...
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(2006)The effect of water on heat capacity has been determined for four series of hydrated synthetic aluminosilicate glasses and supercooled liquids close to albite, phonolite, trachyte, and leucogranite compositions. Heat ...
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(1996)Partial melting experiments were conducted on a natural high-alumina basalt from the Higashi-Izu volcanoes (47.4 wt.% SiO2; 8.3 wt.% MgO) with 1 and 2 wt.% total H2O at 0.5 and 1 GPa, 1125-875oC. The partial melts produced ...
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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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(1998)The viscosities of a series of water-bearing peralkaline rhyolitic melts have been experimentally determined. The dry melt compositions are composed of a series of additions of Na2O to a metaluminous base composition. The ...
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(2004)To understand the fundamental chemical processes of fluid-rock interaction during the pulverization of quartz grains in fault zones, quartz grains were crushed within pure water. The crushing experiments were performed ...
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(2001)Use of a simple, disposable apparatus allows the measurement of 2H/1H ratios in small quantities of potentially toxic organic materials without the release of hazardous compounds. The apparatus consists of welded nickel ...
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(Федеральное государственное автономное образовательное учреждение высшего образования «Дальневосточный федеральный университет», 2016)Rock mass at site has usually been in water-rich environments for a long periods. In order to study the effects of water on Granite tunnel rockbursts, natural and water-saturated specimens have been took experiment here. ...
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(Федеральное государственное бюджетное образовательное учреждение высшего образования «Уральский государственный горный университет», 2018)Relevance. Prediction of earthquakes is one of the most difficult actual problems of mankind. The complexity of the forecast is in the fact that, firstly, the processes in earthquake origin are stochastic and do not allow ...
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(2006)The transmittance spectra of Types I and III silica glasses in the 1300 to 5000 cm- 1 region are measured and the absorptivity spectra calculated from data obtained are processed with the dispersion analysis method based ...
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LABORATORY MEASUREMENTS OF ELECTRICAL CONDUCTIVITY OF HYDROUS AND DRY SILICIC MELTS UNDER PRESSURE (2004)An interpretation of the electrical signature of molten rocks within the Earth's interior in terms of nature and temperature conditions of magma requires additional laboratory data on the electrical conductivity of silicate ...
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(2001)Ground-penetrating radar (GPR) is used to both image and quantify porosity variations in a variably welded pyroclastic flow deposit. Characteristic radar signals for nonwelded (constant, high porosity) and welded (porosity ...
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(2000)This paper reviews the investigations that quantify metal-bacteria, organic-bacteria, and bacteria-mineral adsorption reactions. The studies are divided into the two main approaches used to quantify adsorption: bulk ...
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(2002)We apply a geospeedometer previously developed in this lab to investigate cooling rate profiles of rhyolitic samples initially held at 720-750°C and quenched in water, liquid nitrogen, and air. For quench of mm-size samples ...
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(1999)In order to resolve the controversy over how to interpret experimental H2O speciation results using in-situ and quenching techniques, we have carried out an infrared spectroscopic study to determine whether the molecular ...
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(1996)The vesiculation of a peralkaline rhyolite melt (initially containing ~0.14 wt.% H2O) has been investigated at temperatures above the rheological glass transition (Tg≈530 °C) by (a) in situ optical observation of individual ...
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(2003)Model predictions suggest that the saturation state of surface ocean waters with respect to carbonate minerals will decline during the twenty-first century owing to increased invasion of atmospheric CO2. As a result, ...
Now showing items 1-20 of 51