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Browsing by Title
Now showing items 15505-15524 of 39126
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(2004)Numerical studies of the geodynamo have taken different views on the importance of inertial effects. Some have neglected inertia, while others have boosted its strength, in much the same way as they have had to take an ...
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(2001)A series of experiments is described in which layered specimens were shortened parallel to the layering. The specimens comprise two salt (NaCl) layers sandwiched between three layers of salt-mica synthetic schist. All ...
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(1998)Electron microscopic observations of alkali feldspars from soils show that intragranular microtextures, such as exsolution lamellae, and microstructures, primarily dislocations, are both highly significant determinants of ...
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(2004)Experiment is central to scienti¢c methodology. Within science in general, experiments are used for four primary purposes, i.e. as a tool to explore novel phenomena and to provide systematic observations of processes, to ...
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(2002)In many mine soils, lignite carbon is present as a potential carbon source for micro-organisms. Although the establishment of an active microbial community in reclaimed mine soils was recognised to be of great importance ...
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(2001)It has long been recognized that mare basalts on the Moon are preferentially located both on the Earth-facing hemisphere and within large impact basins. A popular model that accounts for this observation assumes that these ...
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(2002)Sorption of a series of toluene-solvated porphyrins with differing structural characteristics and metallic centers [i.e. free-base, Cu(II), Ni(II) and VO(II)] onto Na-montmorillonite was measured to determine how this clay ...
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(PANGAEA, 1983-01-21)The life cycle of infusorians belonging to genus Colpoda, dormant cysts of which were found on planktic crustaceans of the Black Sea coastal waters, is described. Population strength of Colpoda is maximum in autumn. The ...
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(2004)Recent measurements of slip profiles on normal faults have found that they are usually triangular in shape. This has been explained to be a consequence of on-fault processes such as slip-dependent friction. However, the ...
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(1990)We present a simple model of3He and4He transport in the mantle using the appropriate rates of mass and species transfer and4He production. Previous workers have shown the presence of excess3He in hotspots such as Hawaii ...
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(2006)A detailed geochemical and microbiological study of a ?2 m sediment core from the inactive Alvin mounds within the TAG hydrothermal field was conducted to examine, for the first time, the role of prokaryotes in subsurface ...
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(1996)We present a quantitative model for in situ crystallization within a solidification zone (or boundary layer) based on the trace and major element compositions of plutonic igneous rocks and related geochemical data. We ...
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THE ROLE OF RIFTING IN THE EVOLUTION OF THE CONTINENTAL MARGIN OF EASTERN ASIA: GEOPHYSICAL EVIDENCE (1992)The role of rift processes is analysed in the structural evolution of the continental margins of Eastern Asia including the Indo-China Peninsula and North China plain. Paleoreconstructions were made for the Indo-China ...
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(2003)The role of secondary minerals in controlling the migration of As, Cu, Zn, Pb and Cd has been investigated in piles of high-sulfide waste at the Berikul Au mine, Kemerovo region, Russia. These wastes contain 40–45 wt.% ...
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(1997)The role of viscous heating in mantle flows has been studied within the framework of a steady-state, two-dimensional cartesian model with a composite non-Newtonian and Newtonian rheology. There is temperature-dependence ...
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(2001)Sodium silicate melts of the composition Na2O · RSiO2 (R = 3, 4) with varying water contents were studied by 1H and 23Na NMR. It was found that Na+ occurs in sodium silicate melt in two coordinations: (1) covalently bonded ...
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(2001)The central area of the Russian Plain received substantial amounts Cs-137 fallout as a result of the Chernobyl accident in 1986, with inventories exceeding 40 kBq m−2 in many of the areas close to Chernobyl. Concern over ...
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(2003)The attributes of about 13,600 hard-rock water wells were arranged in three profiles parallel to gradients of typical regional factors. These factors are thought to be of importance to groundwater yield from wells in the ...
Now showing items 15505-15524 of 39126