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Now showing items 7522-7541 of 41900
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(1995)After conversion of water to H2 gas with zinc for DH ratio determination, hydrogen gas can be absorbed by the zinc during cooling, resulting in H isotope fractionation. Thermal release and subsequent DH ratio determination ...
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(1996)Активность H2O в концентрированных NaCl р-рах измерялась при 600-900°C и 2-15 кбар и при концентрациях NaCl до насыщения по галиту при снижении равновесной дегидратации в бинарной системе синтетических брусит-периклаз. ...
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(2002)We present experimental results constraining water activity in H2O-N2 fluids containing 40–90 mol% water at pressures of 6–13 kbar and temperatures of 680–840 °C. In the experiments, the displacement of the brucite dehydration ...
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(2011)This paper reports new FTIR data on the H2O and CO2 concentrations in glasses of 26 naturally quenched and experimentally partially homogenized melt inclusions in olivine (Fo85–91) phenocrysts from rocks of the Kliuchevskoi ...
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(1996)A total of 145 inclusions, trapped and isolated in Mg-rich olivine phenocrysts (Fo0.87–0.94) from basalts and ultramafic lavas, and representing the most primitive mantle melts known, have been analysed by ion microprobe ...
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(2004)The diffusion of water in dacitic and andesitic melts was investigated at temperatures of 1458 to 1858 K and pressures between 0.5 and 1.5 GPa using the diffusion couple technique. Pairs of nominally dry glasses and hydrous ...
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(2000)H2O diffusion plays a major role in bubble growth and volcanic eruption. We report a comprehensive study of H2O diffusion in rhyolitic melts and glasses. This new study and previous investigations together cover a wide ...
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(2006)The speciation of H2O in float glass (FG) and soda lime silica glass (SLS) was investigated using IR and NMR spectroscopy. Molar absorption coefficients for the near-infrared (NIR) combination bands at 4500 and 5200 cm- ...
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(1997)Coral skeletons contain relatively little organic material and inorganically precipitated carbonate cement, although these quantities are enough to bias geochemical measurements. Preliminary treatment is therefore often ...
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(1987)On a cryogenic investigation solid H2S was successively observed after freezing CO2 in water-poor fluid inclusions in halite of Cambrian Siberian salts. Melting of a H2S solid phase occurs at nearly eutectic temperatures ...
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(2001)The high field strength elements (HFSE) play a critical role in the interpretation of chemical variation within subduction-related magmas by providing an assumed mantle-dominated 'baseline' from which enrichments in many ...
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(1999)Standard partial molal thermodynamic parameters for the aqueous chlorinated-ethylene species, perchloroethylene (PCE), trichloroethylene (TCE), 1,1-dichloroethylene (1,1-DCE), cis-1,2-dichloroethylene (cis-1,2-DCE), ...
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(2001)Extension of Ar-Ar methodology has been used to determine mineralisation ages from mica inclusions and to simultaneously evaluate the noble gas and halogen composition of inclusion fluids within irradiated quartz vein ...
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(1989)The role of volatiles in island-arc magma generation is widely discussed in the geologic literature. Two of the most important volatile mineralizers are fluorine and chlorine, whose principal accumulator minerals in igneous ...
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(2003)We describe the structure of a listric growth fault system from SE Asia, using high-resolution, 3-D seismic data. The fault system shows systematic changes in geometry and kinematics that are sympathetic with along-strike ...
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(1996)The structure of haploandesitic magma was modeled via in situ, high-temperature Raman spectroscopy along the join K2Si4O9-K2(KAl)4O9 from 25 to 1236°C. These glasses and melts consist of Q^4, Q^3, and Q^2 structural units. ...
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(2002)Powder infrared spectra of perovskites across the CaTiO3-SrTiO3 solid solution have been collected at room temperature for the range 20–700 cm−1. Frequency, intensity, and line broadening parameters vary with a pattern ...
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(Федеральное государственное автономное образовательное учреждение высшего образования «Северный (Арктический) федеральный университет им. М.В. Ломоносова», 2018)The paper presents an analysis of the physico-chemical properties of hard-to-recover, high quality oils in the Russian sector of the Arctic. In view of the insufficient knowledge of the properties and conditions occurrence ...
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(PANGAEA, 2010-04-12)Lower jaws (containing the teeth), eyes, and skin samples were collected from harp seals (Pagophilus groenlandicus) in the southeastern Barents Sea for the purpose of comparing age estimates obtained by 3 different methods, ...
Now showing items 7522-7541 of 41900