Browsing by Author "Wang J."
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Browsing by Author "Wang J."
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Wang J.; Rustad J.R. (2006)Using a simple ionic model with polarizable oxygen ions and dissociating water molecules, we have calculated the energetics governing the distribution of Fe(II)/Fe(III) ions at the reduced (2 ? 1) surface of ?-Fe2O3 ...
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Wang J.; Davis A.M.; Clayton R.N.; Mayeda T.K.; Hashimoto A. (2001)A synthetic material with solar elemental proportions of iron, magnesium, silicon, titanium, calcium, and aluminum oxides and doped with rare earth elements was evaporated in a vacuum furnace at 1800 and 2000°C for different ...
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De S.; Heaney P.J.; Vicenzi E.P.; Wang J. (2001)Carbonado, a polycrystalline variety of diamond, is characterized by unusual carbon isotope compositions with bulk δ13C values clustered tightly between −23 and −30‰ (relative to PDB). These values are significantly lighter ...
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Wang J.; Davis A.M.; Clayton R.N.; Hashimoto A. (1999)Single crystals of forsterite were evaporated in a vacuum furnace at temperatures of 1500-1800°C to study evaporation kinetics, magnesium isotopic fractionation, and magnesium diffusion in forsterite. The evaporation of ...
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Yu Y.; Hewins R.H.; Alexander C.M.O.; Wang J. (2003)The behavior of Na and K during evaporation from chondrule composition melts was studied using a vacuum furnace. Though Na is the less volatile of the two as an element, it is lost more rapidly than K from silicate melts. ...
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Ye Zh.R.; Wang J. (2002)The global heat flow is the surface representation of thermal processes within the earth's mantle. The long-wavelength pattern of observed heat flow closely resembles the plate tectonics and its most prominent feature is ...
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Wang J.; Kalinichev A.G.; Kirkpatrick R.J.; Amonette J.E. (2003)Comparison of the observed far-infrared (FIR) spectrum of Cl−-containing hydrotalcite, [Mg3Al(OH)8]Cl·3H2O, to a power spectrum calculated using molecular dynamics (MD) computer simulation, provides a greatly increased ...
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Hauri E.H.; Wang J.; Pearson D.G.; Bulanova G.P. (2002)This paper describes in situ analysis methods for determination of nitrogen abundance, δ13C, and δ15N in diamond by secondary ion mass spectrometry (SIMS). The simple chemical composition of diamond results in the absence ...
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Wang J.; Kalinichev A.G.; Kirkpatrick R.J. (2004)Molecular dynamics (MD) modeling of the 10-Å phase, Mg3Si4O10(OH)2·xH2O, with x=2/3, 1.0 and 2.0 shows complex structural changes with pressure, temperature and water content and provides new insight into the structures ...
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Wang J.; Kalinichev A.G.; Kirkpatrick R.J. (2004)Molecular dynamics,(MD) computer,simulations of liquid water held in one-dimensional nano- confinement by two parallel, electrostatically neutral but hydrophilic surfaces of brucite, Mg(OH) 2, provide greatly increased, ...
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Hauri E.; Wang J.; Dixon J.E.; King P.L.; Mandeville C.; Newman S. (2002)This paper describes microanalysis techniques using secondary ion mass spectrometry (SIMS) to measure the abundances and isotopic compositions of hydrogen, carbon, fluorine, sulfur and chlorine in volcanic glasses. SIMS ...
Now showing items 1-11 of 11