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Methodological factors influencing inhalation bioaccessibility of metal(loid)s in PM2.5 using simulated lung fluid
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Comparison of clumped isotope signatures of dolomite cements to fluid inclusion thermometry in the temperature range of 73–176 °C
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Hydrogen isotope fractionation in the system brucite-water ± NaCl to elevated temperatures and pressures: Implications for the isotopic property of NaCl fluids under geologic conditions
According to the article, a series of hydrothermal experiments have been conducted to determine equilibrium D/H fractionations between brucite and water as a function of temperature (200-600 °C), pressure (2.1-800 MPa), and dissolved NaCl (0-5 molal or 0-22.6 wt%). Along with our previous study, a total of 39 data points show that pressure and dissolved NaCl both increase the D/H fractionation factor at a given temperature. Theoretical treatment allowed a first direct comparison of experimental and theoretical results of brucite-water D/H fractionation at a zero pressure limit. After correcting the pressure effects on brucite D/H partition function ratios (β-factor), the isotope effects of pressure and dissolved NaCl on the D/H β-factor of water were for the first time rigorously evaluated. There is a good linear relationship between the D/H β-factor of the aqueous NaCl solutions and their densities of at a given temperature. A good, pseudo-linear relationship observed between the density of aqueous NaCl solutions and the maximum intensity of the asymmetric OH vibrational frequency of water in turn suggests that this frequency is a fundamental property that determines the β-factor of water at elevated temperatures and pressures. Our study suggests that the density of aqueous solutions (ρ aq-soln ) could be used as a primary parameter to predict the effects of pressure and NaCl compositions on the β-factor of water under geologic conditions encountered in the crust and upper mantle:Δ10 3 1n β wat /Δρ aq-soln = -0.0111 (±0.0012), where Δ is a difference in the value of 10 3 In β wat or ρ aq-soln , and ρ aq-soln in kg m -3 .
Rare earth element systematics in boiled fluids from basalt-hosted geothermal systems
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Mixing of carbonatitic into saline fluid during panda diamond formation
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Equilibrium calcite-fluid Sr/Ca partition coefficient from marine sediment and pore fluids
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Fluid flow distribution in fractures for a doublet system in Enhanced Geothermal Systems (EGS)
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Flow regime analysis for geologic CO2 sequestration and other subsurface fluid injections
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Propagation of toughness-dominated fluid-driven fractures in reactive porous media
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Conservative and bounded volume-of-fluid advection on unstructured grids
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