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Browsing ELibrary by Title
Now showing items 12326-12345 of 21936
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(2003)The influence of dissolved organic matter on the complex mechanism of calcite crystal growth from seawater was evaluated by a set of experiments at different humic acid concentrations (i.e. [HA]=50, 500, 1000 μg/kg) in ...
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(2005)Large-scale molecular simulation of proton accumulations were carried out on (i) (110) and (021) slabs immersed in aqueous solution and (ii) a series of model goethite nanoparticles of dimension 2 to 8 nm with systematically ...
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(2003)Surface coatings are very common on mineral grains in soils but most laboratory dissolution experiments are carried out on pristine, uncoated mineral grains. An experiment designed to unambiguously isolate the effect of ...
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(2003)Turbidite slope channels are analogous to fluvial channels in that they tend towards graded equilibrium profiles. The gap between the equilibrium profile and the actual sediment surface defines the accommodation, and it ...
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(2004)The influence of geodynamic factors on the postsedimentary lithogenesis of terrigenous sequences during the replacement of the passive continental-margin regime to the active regime is considered with the Toarcian–Aalenian ...
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(1997)Solidus temperatures of quartz–alkali feldspar assemblages in the haplogranite system (Qz-Ab-Or) and subsystems in the presence of H2O-H2 fluids have been determined at 1, 2, 5 and 8 kbar vapour pressure to constrain the ...
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(2002)The influence of vorticity and rheology of matrix material on the development of shape-preferred orientation (SPO) of populations of rigid objects was experimentally studied. Experiments in plane strain monoclinic flow ...
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(2002)Analysis of the near-infrared (NIR) spectral bands of phyllosilicates, together with the mid-infrared bands, enables testing and confirmation of band assignments for the structural OH vibrations. Spectral analyses of ...
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(2005)Metastable coesite is an important pressure indicator for ultrahigh-pressure rocks. However, in many cases coesite does not survive exhumation, but reacts back to quartz. Although it was shown experimentally that incorporation ...
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(1999)Both seismological observations and mineral physics experiments suggest that old and cold subducting slabs might contain a wedge of metastable olivine (`MO'). Dynamically consistent models of subducting slabs, in which the ...
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THE INFLUENCE OF PARTICLE COMPOSITION AND PARTICLE FLUX ON SCAVENGING OF TH, PA AND BE IN THE OCEAN (2002)We have examined the relative affinity of Th, Pa and Be for sorption from seawater onto particles of variable composition (opal, carbonate, lithogenic particles and organic carbon). Nuclide concentrations in particles ...
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(2005)Pb(II) sorption experiments with calcite powders were conducted in suspensions equilibrated at atmospheric PCO2(g) and ambient temperature at pH 7.3, 8.2 and 9.4. Pb fractional sorption was low at pH 7.3 and 9.4 relative ...
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(1996)Although the rare earth elements (REEs) are thought to participate in essentially all of the processes that influence metal distributions in seawater, quantitative descriptions of oceanic rare earth element (REE) distributions ...
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(2004)We model the thermal evolution of the core and mantle using a parametrized convection scheme, and calculate the entropy available to drive the geodynamo as a function of time. The cooling of the core is controlled by the ...
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(2003)The effect of pressure and composition on the viscosity of both anhydrous and hydrous andesitic melts was studied in the viscosity range of 108 to 1011.5 Pa . s using parallel plate viscometry. The pressure dependence of ...
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(2002)Overland flow is often only a few millimetres deep. Consequently, the potential for raindrop impact to affect flow hydraulics and sediment transport is high. Furthermore, the relative importance of rainfall impact is highest ...
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(2002)Results of high resolution seismic tomography showing subducting slabs deflected in the transition zone and thickened in the lower mantle seem to call for slab material weaker than inferred from mineral physics deformation ...
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(1997)Liquid metal-liquid silicate partitioning of Fe, Ni, Co, P, Ge, W and Mo among a carbon-saturated metal and a variety of silicate melts (magnesian-tholeiitic-siliceous-aluminous-aluminosiliceous basalts) depends modestly ...
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(2003)Although the problem of storm movement affecting flows (shape of the hydrograph and peak discharges) has been recognised for a long time, most overland flow and water erosion studies do not take into account the effect on ...
Now showing items 12326-12345 of 21936