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Browsing ELibrary by Title
Now showing items 5723-5742 of 21768
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(1998)In-situ isotopic ratio analyses of Os for iridosmine samples have been made by a laser ablation–multiple collector–inductively coupled plasma mass spectrometer (LA–MC–ICPMS). A frequency-quadrupled Nd-YAG UV laser (266 nm) ...
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(2000)Changes in frequency and linewidth of the 206 and 464 cm−1 A1 Raman modes of quartz were determined over temperatures from 23 to 800 °C and simultaneously at pressures ranging between 0.1 MPa and 2.1 GPa using a hydrothermal ...
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(2001)The rate of Cryptosporidium parvum inactivation decreased with decreasing temperature (1-20°C) for ozone and for monochloramine applied alone as well as after pre-treatment with ozone. Synergy was observed at all temperatures ...
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(1999)The low-temperature thermal history of Paleozoic and Precambrian shales and slates was studied in detail along a NW-SE transect between Ufa and Beloretzk in the western fold-and-thrust belt of the southern Urals, Russia. ...
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(1996)Transitional VGP paths recorded in sediments cluster into two antipodal preferred longitude bands that tend to lie 90° away from their site longitudes, the latter also being clustered. VGP paths obtained from lava flow ...
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INCLUSIONS OF POTASSIC PHASES, COESITE AND OMPHACITE IN A COATED DIAMOND CRYSTAL FROM THE MIR PIPE (1990)The authors report a continuation of the study of zonally distributed inclusions in an octahedral diamond crystal with a yellow coating in which two syngenetic sanidine inclusions had previously been found. The fact that ...
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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 ...
Now showing items 5723-5742 of 21768