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Now showing items 12038-12057 of 39126
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(1997)Variations in Raman spectra of phase E were investigated up to 340 kbar at room temperature and in the range 83-870 K at atmospheric pressure. Phase E appears to remain intact up to at least 870 K. However, the OH Raman ...
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(1998)One-molal solutions of potassium carbonate and potassium bicarbonate were investigated by Raman spectroscopy from 22° to 550°C and from 1000 to 2000 bar. Experiments were performed in a special hydrothermal pressure vessel ...
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(2004)Mixtures of CO2-NaCl-H2O contained in synthetic fluid inclusions are studied by laser Raman spectroscopy at high temperatures. With increasing temperature, the band splitting (X) of υ1-2υ2 diad of spectrum of CO2 presents ...
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(2002)The zeolite bikitaite, Li2[Al2Si4O12]·2H2O, has structural channels containing infinite chains of H2O molecules running parallel to [010]. One hydrogen atom of an H2O molecule is weakly hydrogen bonded to an O atom of a ...
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(2001)Raman spectra of hydrous beta-Mg2SiO4 (1.65wt% H2O) have been measured in a diamond-anvil cell with helium as a pressure-transmitting medium at room temperature to 50GPa. We observe three OH-stretching modes, a doublet ...
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(2002)Raman spectra of a single-crystal fragment of hydrous γ-Mg2SiO4, synthesized in a multianvil press, have been measured in a diamond-anvil cell with helium as pressure-transmitting medium to 56.5 GPa at room temperature. ...
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(2003)Raman spectroscopy of calcium ferrite type MgAl2O4 and CaAl2O4 and heat capacity measurement of CaAl2O4 calcium ferrite were performed. The heat-capacity of CaAl2O4 calcium ferrite measured by a differential scanning ...
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(2004)Raman spectroscopy has been applied to the study of basic Cu sulfates including antlerite, brochiantite, posnjakite, langite, and wroewolfeite and selected complex Cu sulfate minerals. Published X-ray diffraction data were ...
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(2002)Raman spectra of Fe2O3 were measured to 62 GPa in a diamond anvil cell. All group theoretically predicted Raman-active phonon modes were detected to 54 Gpa. In addition, some high-pressure spectra show and IR-active Eu ...
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(1998)Previous work on gold chloride and hydroxide speciation in fluids has shown differences in opinion as to the relative importance of gold (I) and gold (III) species, as well as for the Raman peak assignments for the various ...
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(2000)The high-pressure behaviour (up to 30 kbar) of dehydrated analcime, Na[AlSi 2 O 6 ), has been studied in detail using polarized microscopy and Raman micro-spectroscopy. Samples were compressed using a diamond anvil cell ...
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(1990)The best sources of information on the range over which mass transfer occurs in the course of metamorphism are data from the zones of contact (interface zones) between rocks that differ strongly in composition, but contain ...
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(PANGAEA, 2016-04-05)Rapid adaptation to novel biotic interactions and abiotic factors in introduced ranges can be critical to invasion success of both exotic terrestrial and aquatic plants. Seaweeds are extremely successful biological invaders ...
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(2013)We present the results of time-dependent local earthquake tomography for the Kluchevskoy group of volcanoes in Kamchatka, Russia. We consider the time period from 1999 to 2009, which covers several stages of activity of ...
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(2000)We present a method for the rapid determination of Os isotopic compositions and platinum group element (PGE) concentrations using ICP-MS on the same sample split. The method makes use of transfer of volatile OsO4 by an Ar ...
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(2003)The Siberian flood-volcanic event is the most voluminous and explosive, continental, volcanic event known in the Phanerozoic record. U–Pb perovskite and zircon ages were obtained for lavas of the lowermost unit (251.7±0.4 ...
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(2003)Based on high PT experiments, the present work demonstrates the possibility of formation of monomineral diamondite-type polycrystalline intergrowths in modeling carbonate-carbon and carbonate-silicate-carbon melts at their ...
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(2004)To better constrain the ongoing rates of deformation in northern Tibet, the ages of fluvial and glacial geomorphic markers left-laterally displaced by the Altyn Tagh Fault have been determined by radiocarbon and 10Be-26Al ...
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(PANGAEA, 1882-09-02)This work describes the Dutch participation to the first International Polar Year, 1882-1883. The main objective of the expedition was to take meteorological and other scientific observations and assess the navigability ...
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(1997)Rare earth and yttrium phosphate solubility products range over more than 1 order of magnitude. Minimum solubilities are observed for light rare earths between Ce and Sm. For the elements Ce, Pr, Nd, and Sm solubility ...
Now showing items 12038-12057 of 39126