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Browsing ELibrary by Title
Now showing items 2734-2753 of 22005
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(2001)The shape, pattern and crystallographic orientation of grain boundaries represent important characteristics of crystalline material and contain information about its deformation and annealing history. The present study ...
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(2004)We compare the frictional strengths of 17 sheet structure mineral powders, measured under dry and water-saturated conditions, to identify the factors that cause many of them to be relatively weak. The dry coefficient of ...
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(2002)Studies of the microstructure, crystallographic orientation, chemical composition and three-dimensional shape of sigmoidal garnet reveal a number of features that can be used to discuss its origin, and in particular to ...
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(2004)A crystalline form of hydrated calcium phosphate, brushite (CaHPO(4)(.)2H(2)O), has been studied by means of total energy First Principles calculations based on the Density Functional Theory (DFT) approximation. The ...
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(2005)Evaluation of the long-term health risks of uranium contamination in soils, sediments, and groundwater requires a fundamental understanding of the various processes affecting subsurface transport of uranium, including ...
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(2005)The isotopic composition of dissolved Cu and solid Cu-rich minerals [δ65Cu (‰) = (65Cu/63Cusample/65Cu/63Custd) - 1)*1000] were monitored in batch oxidative dissolution experiments with and without Thiobacillus ferrooxidans. ...
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(2005)40Аг/39Аг датированием установлено, что формированию крупного Cu-Mo-порфирового месторождения Эрдэнэтуин-Обо, связанного со становлением эрдэнэтского рудоносного порфирового комплекса, предшествовало развитие в районе ...
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(2001)The HS2-NUVEL1 model being used for current plate velocities relative to hotspots is shown to be generally inconsistent with the observed hotspot data sampled from non-Pacific regions. Instead, we determine the T22A model, ...
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(2001)The nomenclature of phyllosilicates is discussed in relation to structural variations of layers and interlayers. Some discrepancies in the nomenclature which arose due to historical reasons and different viewpoints may be ...
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(2004)A review of the early history of the Cuyania terrane and the numerous pioneering works of the past century provides the present robust framework of evidence supporting a derivation from Laurentia, travel towards Gondwana ...
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(2001)A periodic vertical movement of the groundwater table results in a subsequent cyclic response of the water content and pressure profiles in the vadose zone. The sequence of periodic wetting and drying processes can be ...
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(1996)A study was made of cyclic sequences (cyclites) in light grey Upper Cretaceous limestones in the Crimean mountains. Cyclic sequences of various types and thicknesses were recognized. The nature of the sequences made it ...
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(2003)The KaraBogazGol (KBG) water level oscillations were reconstructed in the last 200 years using the geochemical evolution of the uppermost meter of its sedimentary infill. High-resolution studies of the mineralogical ...
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(1988)For the first time for eastern Yakutia, encompassing the Mesozoides of the Verkhoyansk clastic complex in the Baraya anticlinorium (BA), the Sartang synclinorium (SS) and the South Verkhoyansk synclinorium (SVS), the ...
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(2003)The cyclic growth of Heliolitoidea corals is expressed in periodic changes in their morphometric characteristics at the transition from the light zone to the dark zone of the cycle. Genera and higher taxa experience ...
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(2003)Combination of sedimentological and cyclostratigraphic methods is used to depict for the first time the relative sea-level fluctuations characterizing a series of sections of Upper Paleozoic terrigenous deposits in the ...
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(2004)D'Orbigny is the sixth and by far the largest angrite known. Its bulk chemical and mineral chemical compositions, rare gas abundances and oxygen and rare gas isotope compositions fit the compositional ranges known from ...
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(2004)Models of development of lattice preferred orientation (LPO) of crystals aggregates in convective flow are necessary to interpret the anisotropic seismic signature of the Earth's upper mantle. For that purpose we previously ...
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(1995)We report measurements of the equilibrium D/H fractionation factor (α) between methane and hydrogen in the temperature range 200-500°C. Isotopic equilibrium was achieved by recycling the gases over a Ni-Thoria catalyst, ...
Now showing items 2734-2753 of 22005