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Browsing ELibrary by Title
Now showing items 5520-5539 of 21934
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(1995)It is usually assumed that chemical exchange between mafic enclaves considered as blobs of mafic liquids and their host silicic melt proceeds through static diffusion. However, the chemical boundary layer should keep the ...
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(2000)Oxygen isotope ratios of olivine and clinopyroxene phenocrysts from the Kluchevskoy volcano in Kamchatka have been studied by CO2 and ArF laser techniques. Measured δ18O values of 5.8–7.1‰ for olivine and 6.2–7.5‰ for ...
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(2000)Seismic waves that travel along the surface of subducted slabs provide a means to infer petrology to considerable depth. At high frequencies (0.5-10 Hz) they are particularly sensitive to the presence and state of subducted ...
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(1995)The position of the Pb isotopic compositions of mid-ocean ridge basalts (MORB) to the right of the geochron has long puzzled geochemists. Uranium is more incompatible than Pb during mantle melting, and the mantle source ...
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(2003)Water-vapor sorption isotherms, relative humidity (RH) controlled powder X-ray diffraction (XRD) data, and new and previously published multi-nuclear NMR spectroscopic data for a wide range of layered double hydroxides ...
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(2003)A series of simple hydraulic calculations has been performed to examine some of the questions associated with the reconnection of the Black Sea to the Mediterranean through the Turkish Strait System during the Holocene. ...
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(2002)A hydro-mechanical testing system, which is capable of measuring both the flow rates and the normal and shear displacement of a rock fracture, was built to investigate the hydraulic behaviour of rough tension fractures. ...
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(2003)Most discontinuous gullies overlying the almost tabular sedimentary strata of the Moldavian Plateau, Eastern Romania exhibit gullying by gully head advance and aggradation of the gully basin floor. According to Heede [Z. ...
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(2002)The main research objective consisted in analysing the influence of roughness caused by aquatic vegetation (av), in particular submerged macrophytes, on the overall flow field. These plants are highly flexible and behave ...
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(2003)An analysis of groundwater hydraulic head in the vicinity of a horizontal well in fractured or porous aquifers considering confined, leaky confined, and water-table aquifer boundary conditions is presented. Solutions for ...
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(2003)A joint analysis of the local Kamchatka earthquake catalogue data and hydro-acoustic measurements obtained during the Acoustic Thermometry of Ocean Climate (ATOC) experiment was carried out. The time series of acoustic ...
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(2003)Currently, the presence of free n-alkanes and isoprenoid alkanes in carbonaceous meteorites is usually explained either by microbial contamination during the period between the meteorite fall and collection or by contamination ...
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(1995)Shock waves trigger reactions in solid benzene at 77 K to produce hydrogen, light alkanes from C1 to C3, light alkenes from C2 to C3, acetylene, aromatic hydrocarbons with high-molecular weights ranging from 102 (phenylacetylene) ...
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(1998)Primary (syn-growth) fluid inclusions in synthetic diamonds, produced within the field of their thermodynamic stability in a high-pressure split-sphere apparatus using the temperature gradient method, have been studied by ...
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(2001)Data are presented on the content and composition of aliphatic and polycyclic aromatic hydrocarbons (HCs) in snow, ice core, water, and bottom sediments from the northern Barents Sea, within the FranzVictoria trough. It ...
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(2003)Several ecosystems in the western US are already undergoing nitrogen (N) saturation, a condition where previously N limited ecosystems are no longer N limited. This state of N saturation leads to adverse impacts on terrestrial ...
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(2001)A conceptual model for preliminary assessment of minewater pollution within the risk-based corrective action (RBCA) framework for environmental management is developed. The model aims to assist classification of a site ...
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(2001)Based on the results of the geochemical study of groundwater from the Central ore field (Kuznetsk Alatau) and of the distribution of gold in the latter, the mechanism of mobilization, migration, and concentration of this ...
Now showing items 5520-5539 of 21934