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Now showing items 16823-16842 of 39126
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(2000)Multi-anvil experiments have been conducted in the MgO-SiO2-H2O system at pressures of 15-24 GPa and temperatures of 1200-1600°C to investigate the partitioning of water between mantle phases. The water contents were ...
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(2003)New constraints on the thermodynamic equation of state of water and the predicted water fugacity dependence of OH-solubility at elevated P-T conditions along with its influence on dislocation dynamics in olivine are reviewed. ...
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(1986)We have measured the water solubility between 1 atmosphere and 5 kilobars for a calcium aluminosilicate melt of molar composition CaO 0.28, Al2O3 0.06, SiO2 0.66 (An9Wo38Qz53). The water contents were measured via ...
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(1987)We have compiled water solubility data for a wide range of natural and synthetic aluminosilicate melts in a search for correlations between melt composition and solubility. The published data reveal some interesting ...
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(1992)The compositional dependence of H2O solubility was investigated at 2 kbar and 800°C in haplogranite melts (system SiO2---1bNaAlSi3O8---1bKAlSi3O8 or Qz---1bAb---1bOr). The sixteen investigated compositions contained 25, ...
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(2003)The solubility of water in melts of the haplobasaltic system (NaAlSi3O8-CaAl2Si2O8-CaMgSi2O6, Ab-An-Di) was investigated at pressures of 50, 200 and 500 MPa and at temperatures between 1200degreesC and 1420degreesC using ...
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(1999)The water solubility in haplogranitic melts (normative composition Ab39Or32Qz29) coexisting with H2O-H2 fluids at 800 and 950 °C and 1, 2 and 3 kbar vapour pressure has been determined using IR spectroscopy. The experiments ...
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(2003)The water storage capacity of the major constituent of the lower mantle, Mg-perovskite, is a matter of debate. Here we report water solubility of Mg-perovskites with different compositions observed in peridotite and MORB ...
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(2003)New 27Al NMR data are presented in order to clarify the discrepancies in the interpretation of the previous 27Al Magic Angle Spinning (MAS) spectra from hydrous aluminosilicate glasses. The 27Al MAS data have been collected ...
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(2001)Transient water table variation in an unconfined horizontal aquifer, lying between two canals located at different elevations above the impermeable barrier and receiving time varying recharge, is predicted by obtaining an ...
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(2002)Soil saturation is known to be of crucial importance to denitrification and other nitrogen cycling processes within the riparian zone. Since denitrification potential generally increases towards the soil surface, water ...
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(PANGAEA, 2018-04-10)Conductivity-Temperature-Depth (CTD) profiles measured along cross-river transects in the inner Lena Delta. Data was measured using a CTD 60M multiparameter probe (Sea & Sun Technology GmbH, Germany).
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(PANGAEA, 2016-07-11)
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(1998)Relative changes in the level of Lake Baikal, amounting to hundreds of meters in Quaternary time, are well documented. Data presented here show that tectonic displacements of the lake outlet or former shoreline features ...
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(2010)The seismic waves excited by the Mw 7.6 Olyutorskii earthquake that occurred on April 20, 2006 in the Koryak Upland gave rise to water-level changes in five wells situated in continental areas of Kamchatka at hypocentral ...
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(2001)The rare earth element (REE) composition of an acidic spring discharging at pH 2.7 was studied in relation to the REE composition of selected extracts of the coal-bearing strata hydrologically above the discharge. The low ...
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(2004)Based on specific features of the geological structure and hydrogeological conditions of the Mezen Syneclise, the trend and quantitative estimates of compositional changes of groundwaters in Vendian sandy–clayey rocks in ...
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(2003)In this paper an attempt is made to present a distributed physiographic conceptual model that uses the principles of flow continuity and momentum. For this purpose, the watershed under study is divided into subwatersheds ...
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(EDP Sciences, 2019)Geochemical conditions of the formation of various minerals were studied within the oligotrophic pine-shrub and sphagnum peat bog. It was shown that at least two complex barriers function within the peat deposit. These ...
Now showing items 16823-16842 of 39126