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Browsing ELibrary by Title
Now showing items 5756-5775 of 21821
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(2003)The primary magmatic origin of the majority of granitic pegmatites is beyond question. The PT parameters of the magmatic stage are best known for rock crystal and topaz–beryl (with sub-rare-metals) pegmatites [1, 2]. They ...
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INCLUSIVE CHEMICAL CHARACTERIZATION OF TOURMALINE: MöSSBAUER STUDY OF FE VALENCE AND SITE OCCUPANCY (1998)We report here the results of a series of inclusive chemical characterizations, including all elements except oxygen, for a suite of 54 tourmaline samples. A combination of analytical techniques was used to analyze for ...
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(2001)We present first trace element analyses of the fluid produced during breakdown of antigorite serpentine, a major dehydration reaction occurring at depth within subducting oceanic plates. Microinclusions filled with crystals+ ...
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(1998)Incongruent evaporation experiments on troilite (FeS) were carried out under H2-rich conditions at total pressure 1.0-10-6 atm (800-970°C) to elucidate the kinetics of incongruent evaporation of troilite in the primordial ...
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(1998)Incongruent evaporation experiments on troilite (FeS) were carried out under H2-rich conditions at total pressure 1.0-10-6 atm (800-970°C) to elucidate the kinetics of incongruent evaporation of troilite in the primordial ...
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(1997)The effect of the random spatial distribution of earthquake-generating faults on the estimation of the failure concentration parameter is investigated. It is shown that on the assumption of a fractal distribution of faults ...
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(2004)The crystal structure of glagolevite, Na(Mg,Al)6[Si3AlO10](OH,O)8, a new mineral from the Kovdor alkaline massif, Kola peninsula, Russia, has been solved and refined toR1 = 0.117, calculated from 1503 unique observed ...
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(2002)The stability to thermal oxidation of soil humic extracts saturated with H, Na, Ca, or Al, was followed after treatment with relatively polar organic compounds, such as methanol, formic acid, and acetic acid. While thermal ...
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(1999)Complex geophysical monitoring (seismological, tectonomagnetic, extensometric, and GPS observations) and numerical modeling were used to study the development of a seismotectonic process on the southwestern flank of the ...
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(2001)As part of an effort to try to halt the decline in onshore oil production and accelerate production from onshore fields in Azerbaijan, a World Bank-sponsored study of four fields was carried out: the Bibi-Eybat, Kala, ...
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(2003)As an uncertain reasoning model, the general C-F model was originally developed for processing the uncertainties of rule-based knowledge in the field of artificial intelligence. In this model, certainty factors and combined ...
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(1995)The geochemistry of In and Sn are poorly understood, in part, because of difficulties in obtaining accurate concentrations for these elements in geological materials. Furthermore, In/Sn ratios in sulfides could be sufficiently ...
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(2000)X-ray absorption fine structure (EXAFS) measurements on indium(III) nitrate and perchlorate solutions from 25°C to 250°C at the saturated vapour pressure indicate that the In3+–oxygen (water) distance remains constant at ...
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INDIVIDUAL AND COMPETITIVE ADSORPTION OF PHOSPHATE AND ARSENATE ON GOETHITE IN ARTIFICIAL SEAWATER (2003)Phosphate and arsenate adsorption on goethite was studied in single batch experiments at 25 °C upon the addition of Ca2+, Mg2+ and SO42- to a 0.7 M NaCl solution at their respective seawater concentrations. Phosphate ...
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(2002)This paper proposes a new method to characterize individual oil-bearing fluid inclusions. It uses both the homogenisation temperatures measured by microthermometry, and the degree of gas bubble filling measured by confocal ...
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(2004)Induced polarization (IP) measurements were obtained on unsaturated, unconsolidated sediments during (1) evaporative drying and (2) pressure drainage followed by subsequent imbibition (water reentry). Porous ceramic discs ...
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(2002)We review current research on minerals using inelastic neutron scattering and lattice dynamics calculations. Inelastic neutron scattering studies in combination with first principles and atomistic calculations provide a ...
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(2002)Selected Tertiary coals from the Zeya–Buryea Basin, Far Eastern Russia, were investigated for aspects of their coal type, rank, depositional environment and post-depositional history. The coals have been examined in outcrop ...
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(1997)It has been proposed that trace-element concentration ratios of basalts can be used like isotopic ratios to map the trace-element characteristics of mantle magma sources. We evaluate the assumptions and requirements of ...
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(1997)We have attempted to infer details of the viscosity structure in the top 1000 km of the mantle from the geoid and tomographic structure beneath the oceans. In order to eliminate the gravity signal from problematic masses ...
Now showing items 5756-5775 of 21821