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Browsing ELibrary by Title
Now showing items 11930-11949 of 21768
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(1994)A new simple model for sedimentary basin formation, which combines both stretching and phase transitions occurring together in the lithosphere, is proposed, and two important aspects in sedimentary basin formation are ...
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(2002)The thermodynamic theory describing the partitioning of trace elements between crystals and silicate melt implies that partition coefficients should depend on the major-element composition of the melt from two different ...
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(1999)The rate of Si release from dissolving bytownite feldspar in abiotic batch reactors increased as temperatures increased from 5° to 35°C. Metabolically inert subsurface bacteria (bacteria in solution with no organic substrate) ...
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(2001)The effect of microorganisms on Fe precipitation rates at neutral pH in the field was examined. The studied area was a cave having Fe-stalactites composed mainly of ferrihydrite and associated microorganisms. The microorganisms ...
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(2003)The transfer of hillslope water to and through the riparian zone forms a research area of importance in hydrological investigations. Numerical modelling schemes offer a way to visualise and quantify first-order controls ...
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(2000)The H2O2 organic-matter-removal method (Jackson, 1985) used routinely to remove organic matter from sediments in preparation for δD analyses, was found to alter the δD of the smectite standard, H26, up to -8%% and of Gulf ...
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(2003)Alkylphenols in crude oils can be affected by oxidation during storage. A crude oil and an alkylphenol mixture were exposed to light and air for various time periods, resulting in significant alterations of the alkylphenol ...
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(2002)The main goal of this paper is to demonstrate a new rate law describing the combined effect of pH (0.5 to 4.5) and temperature (25°C to 70°C) on kaolinite dissolution rate, under far from equilibrium conditions, as a step ...
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(1995)Experiments measuring kaolinite dissolution rates were carried out using a stirred-flow reactor at temperatures of 25, 50, and 80°C and in the pH range 2 to 4.2. All experiments were conducted under far-from-equilibrium ...
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(1987)Aragonite dissolution in sea water at variable pressure is well described by the equation Rate = kappa'((COâ/sup 2 -/)s - (COâ/sup 2 -/))/sup n/ where (COâ/sup 2 -/)s is the carbonate ion concentration at saturation, ...
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(2000)The crystal–liquid partition coefficients for Sr and Cr, DSr and DCr, have been determined from electron microprobe analyses of plagioclase–liquid and orthopyroxene–liquid pairs produced in melting experiments run at ...
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(2000)The crystal-liquid partition coefficients for Sr and Cr, DSr and DCr, have been determined from electron microprobe analyses of plagioclase-liquid and orthopyroxene-liquid pairs produced in melting experiments run at ...
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(2003)High-pressure and high-temperature experiments have been conducted with a laser-heated diamond-anvil cell (LHDAC) to determine the partition coefficients for Ni and Co up to 42 GPa and around 2500 K. Comparison of the ...
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(2003)The effect of pressure upon hydrogen bonding in synthetic end-member clinochlore, (Mg5Al)(Si3Al)O10(OH)8, has been studied in situ by high-pressure micro-Raman spectroscopy in a moissanite-anvil cell to 26.5 GPa at 300 K. ...
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(2001)Experiments have been conducted with a multi-anvil apparatus on two natural chondrites in four different sample containers. Partition coefficients for Ni and Co between liquid Fe-Ni-S-alloy and liquid silicate (DNiLA/LS ...
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THE EFFECT OF PRESSURE-INDUCED SOLID-SOLID PHASE TRANSITIONS ON DECOMPRESSION MELTING OF THE MANTLE (1995)Pressure-release melting of the earth's mantle is thought to be an isentropic process. The intersection of an isentropic melting path with a solid-state phase transition affecting the residual minerals must result in some ...
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(1996)Property-salinity plots are commonly used in the interpretation of estuarine and coastal dissolved chemical distributions as well as in making estimates of fluxes to the open ocean. Previous work has explored the interpretation ...
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(2001)We investigate the effect of the lateral variation of seismic anisotropy on long-period surface waves, calculating synthetic seismograms for earth models with azimuthal anisotropy whose hexagonal symmetry axes are horizontally ...
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(1995)Numerical modelling indicates that the erosion of uplifted rift flanks at passive margins has a profound effect on offshore stratigraphic patterns. Flexural uplift, due to isostatic rebound in response to erosion, extends ...
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(2003)The partitioning behavior of Ni between olivine and silicate melt in S-bearing systems has been investigated using mid-ocean ridge basalts (MORBs). The Nernst Ni partition coefficient between olivine and silicate melt (DNi) ...
Now showing items 11930-11949 of 21768