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Browsing ELibrary by Title
Now showing items 11126-11145 of 21821
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(2003)Different forms of structural and chemical heterogeneity are considered including mixed-layer minerals, disordered layer structures containing rotational and translational stacking faults, interstratification of ...
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(2004)The oldest volcanic glass in the uniquely fresh siliceous high-Mg (boninite-like) lavas of the Vetrenyi Poyas complex with an age of about 2.41 Ga from the Vetrenyi Poyas rift structure in Karelia was studied for the first ...
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(2003)The mobility and toxicity of Cr within surface and subsurface environments is diminished by the reduction of Cr(VI) to Cr(III). The reduction of hexavalent chromium can proceed via chemical or biological means. Coupled ...
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(2001)We present the results of large-scale computer simulations in which we investigate the static and dynamic properties of sodium disilicate and sodium trisilicate melts. We study in detail the static properties of these ...
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(1998)The finding of microdiamond and coesite in the high-pressure metamorphic rocks of the Kokchetav massif (Caledonides of Central Asia, Northern Kazakhstan) evidence that the crustal rocks were transformed at great depth (more ...
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(2003)The diamond obtained from the Novo-Urei meteorite by acid leaching was examined using a combination of X-ray diffractometry (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The ...
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(1988)Many authors have substantiated the synchronous expansion or contraction of sea basins in different parts of the world. On the other hand, it is well known that transgressions and regressions were contemporaneous in isolated ...
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STRUCTURAL AND PETROLOGICAL EVOLUTION OF THE BORON-IRON TAYOZHNOYE DEPOSIT (CENTRAL ALDAN, RUSSIA) (2002)The contact-metasomatic boron-iron Tayozhnoye deposit located in the central part of the Aldan Shield is unique compared to other skarn deposits with enormous reserves of high-quality ores of iron and accompanying components ...
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(2004)SnO2 nanoparticles were prepared by hydrolysis in aqueous medium and stabilized by montmorillonite or hectorite. The tin content of SnO2/clay nanocomposites varied between 15 and 50 wt.%. Intercalation of tin dioxide ...
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(2001)Using single-crystal X-ray diffraction from a diamond anvil cell, the compressibility of a synthetic fluorapatite was determined up to about 7 GPa. The compression pattern was anisotropic, with greater change along a than ...
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(2001)High-pressure Raman investigations were carried out on a synthetic fluorapatite up to about 7 GPa to analyse the behaviour of the phosphate group's internal modes and of its lattice modes. The Raman frequencies of all modes ...
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(1995)The anionic structure of aluminosilicate melts has been determined along the join Li2Si2O5-Li2(LiAl)2O5 (LS2-LA2) with microRaman spectroscopy in the temperature range 25°-1460°C. Those data are compared with the structural ...
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(2004)The influence on the structure of Fe2+ → Mg substitution was studied in synthetic single crystals belonging to the MgCr2O4–FeCr2O4 series produced by flux growth at 900–1200 °C in controlled atmosphere. Samples were analyzed ...
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(2005)Natural Mn-oxide nanoparticles and grain coatings are ubiquitous in the environment and profoundly impact the water quality and quality of sediments through their ability to degrade and sequester contaminants. These oxides, ...
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(2002)Single crystals of C-Na2Si2O5 have been synthesized from the hydrothermal recrystallization of a glass. The title compound is monoclinic, space group P2(1)/c with Z = 8 and unit-cell parameters a = 4.8521 (4)Angstrom, b = ...
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(2001)Various one- and two-dimensional high-resolution solid-state NMR techniques have been applied to hydrous silicate and aluminosilicate glasses: simple acquisition, cross-polarization (CP-MAS), heteronuclear correlation ...
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(2003)A continuous high-resolution magnetotelluric (MT) profile 5.4 km long reveals a 1-to 2-km-thick section of Neogene strata thrust beneath a crystalline range front along a gently dipping décollement in the Kyrgyz Tien Shan, ...
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STRUCTURAL CONSTRAINTS OF FERRIC (HYDR)OXIDES ON DISSIMILATORY IRON REDUCTION AND THE FATE OF FE(II) (2004)Due to the strong reducing capacity of ferrous Fe, the fate of Fe(II) following dissimilatory iron reduction will have a profound bearing on biogeochemical cycles. We have previously observed the rapid and near complete ...
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(2002)The location and water chemistry in lakes and springs in the Olkhon region are structurally controlled by Cenozoic faults of two types: i) inherited NE faults that follow the Early Paleozoic syncollisional (late stage) ...
Now showing items 11126-11145 of 21821