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Browsing ELibrary by Title
Now showing items 9565-9584 of 21821
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(2001)Approximate formulae for PP reflection/transmission (R/T) displacement coefficients for weak contrast interfaces separating weakly anisotropic media of an arbitrary symmetry are presented. The coefficients have a form of ...
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(2006)По целому самцу хорошей сохранности из юрского местонахождения Даохугоу (Северо-Восточный Китай) описан новый вид Proptychopterina opinata sp. nov. Обсуждается распространение Proptychop-terina, приводятся уточненный диагноз ...
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(2001)Opportunities for development of deposits of polymetallic ores of Ozernyj ore field have been considered. The ore contains many elements including zinc and lead. Review of technological schemes for processing the ores has ...
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(2004)Based on own laboratory experience and a literature review, techniques for processing of different sedimentary lithologies and microscopical investigation in Neoproterozoic-Cambrian sequences are described. Emphasis is ...
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(2003)We are in the process of developing a small portable absolute gravimeter that employs a cam-based dropping mechanism. The resulting high data rate (100 drops in 30 s) serves to compensate for the short (2 cm) dropping ...
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(2001)Generation of electric energy at various power stations including those operating on pulverized coal has been considered. It has been shown that generation of electric energy with the use of the pulverized coal is the most ...
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(2001)The notion of the term "advance time" for tsunami warnings is examined, as is the potential of the existing Kamchatkan service of fast tsunami warning for conveying alarm messages to sites of human settlement on the Pacific ...
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(2002)Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield (Russia) were brought to the surface in Devonian lamprophyre diatremes. To establish the relationships between ...
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(2004)The southern East Uralian Zone consists of granite-gneiss complexes that are embedded in geological units with typical oceanic characteristics. These gneisses have been interpreted as parts of a microcontinent that collided ...
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(1995)The concentration of H+ which reacts with an adularia surface, [H+s], was measured with acid-base titrations of adularia powder-water suspensions. Due to the complexity of feldspar surface reactions, it was necessary to ...
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(2004)Bacterial surface adsorption can control metal distributions in some natural systems, yet it is unclear whether natural bacterial consortia differ in their adsorption behaviors. In this study, we conduct potentiometric ...
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(2000)An experimental investigation of proton binding to a humic acid, and of the co-adsorption of humic acid and Pb(II) to the corundum surface was conducted in 0.01 M NaNO3. We attempt to model the acid-base properties of the ...
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(1993)A proton microprobe was used to measure partition coefficients for Rb, Sr, Ba, Y, Zr, Nb and Ta between experimentally produced amphiboles and hydrous basaltic melts. A limited amount of data was also obtained for the ...
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(2001)Partition coefficients (D) for Ni, Cu, and platinum-group elements (PGE) between monosulphide solid solution (mss) and Fe-sulphide liquid (liq) have been determined experimentally using an electron microprobe (EMP) to ...
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PROTON-BINDING STUDY OF STANDARD AND REFERENCE FULVIC ACIDS, HUMIC ACIDS, AND NATURAL ORGANIC MATTER (2003)The acid-base properties of 14 standard and reference materials from the International Humic Substances Society (IHSS) were investigated by potentiometric titration. Titrations were conducted in 0.1 M NaCl under a nitrogen ...
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(2005)Impure reworked evaporitic sandstones, preserved on Meridiani Planum, Mars, are mixtures of roughly equal amounts of altered siliciclastic debris, of basaltic provenance (40 ± 10% by mass), and chemical constituents, ...
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(1998)The Lilljeborgfjellet Conglomerate Formation composes the lower part of the alluvial Siktefjellet Group of northwestern Spitsbergen's Old Red Sandstone succession. Siktefjellet strata are of late Silurian or early Devonian ...
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(2004)The provenance and tectonic setting of the sediments and rare cobbles from the accretionary wedge on Karaginski Island were examined. This study provides a picture of the nature of the NE Asian paleomargin in the middle ...
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(1999)Rb–Sr isotopic systematics of 111 samples of sediments in nine cores from the north Pacific of Quaternary and Pliocene ages have been investigated. They provide information on the provenance, the process of particle transport ...
Now showing items 9565-9584 of 21821