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Browsing ELibrary by Title
Now showing items 7661-7680 of 22924
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(2003)Microspherules of aluminosilicate glass are found and studied in ores of the Nezhdaninskoe and Kellyam (Yakutia), Democrat (Alaska), and Kokpatas (Uzbekistan) gold-quartz and gold-quartz-sulfide deposits. They show a great ...
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(2004)Mineral microspherules widespread in the gold-quartz ores of the Kellyam deposit, Yakutia, were analyzed on a microprobe; the morphology of their surface and the inner structures of microspherules composed of ore minerals ...
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(2003)Compressional waves velocity VP was measured during long-term experiments in a high-pressure vessel (in the range [10-75] MPa for confining and pore pressures). Experiments were carried out on a granite specimen prepared ...
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(2004)The effects of brine on recrystallization in halite are well known. However, properties of brine such as morphology, connectivity, diffusivity and the resulting influences on deformation mechanisms are still a matter of ...
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MICROSTRUCTURAL EVOLUTION AND RHEOLOGICAL BEHAVIOUR OF MARBLES DEFORMED AT DIFFERENT CRUSTAL LEVELS (2002)Microstructures from naturally deformed marbles were investigated from a nappe pile with inverted Barrovian metamorphic zones. Detailed microstructural and textural work combined with existing PT data allows us to correlate ...
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(2002)Syntectonic antitaxial and ataxial fibrous veins were investigated using SEM, microprobe, cathodoluminescence (CL) and optical microscopy. In antitaxial calcite veins, fibres and surrounding selvage grew simultaneously, ...
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(2004)The contributions that Rob Hargraves made to paleomagnetism spanned not only great distances (from the Earth to Mars) but a vast expanse in time. His interests in the magnetic character of the Archean Earth led him to ...
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(2004)Emplacement of the southern Urals accretionary complex onto the East European Craton involved off-scraping of shallow marine limestones from the continental margin and their underplating to the base of the accretionary ...
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MICROSTRUCTURE AND MAGNETISM IN THE ILMENITE-HEMATITE SOLID SOLUTION: A MONTE CARLO SIMULATION STUDY (2006)The energetics of magnetic and cation ordering have been modeled using an atomistic approach based on empirical exchange interaction parameters. The model has been applied to the study of magnetic and cation ordering in ...
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(2004)The microstructure of monazite was studied using scanning electron microscopy (SEM), electron microprobe analysis (EMP), X-ray diffraction patterns (XRD), and transmission electron microscopy (TEM). Four well-characterized ...
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(2001)Olivine (Fa 8.2%) from a mantle nodule in kimberlite (Udachnaya pipe, Yakutia) was heated in air at 700°C for 9 h and then examined by optical spectroscopy (IR and UV spectroscopy), electron microprobe analysis (EMPA), and ...
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(2001)Olivine (Fa 8.2%) from a mantle nodule in kimberlite (Udachnaya pipe, Yakutia) was heated in air at 700°C for 9 h and then examined by optical spectroscopy (IR and UV spectroscopy), electron microprobe analysis (EMPA), and ...
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(2001)An olivine grain (Fa 8.2%) from a mantle nodule in kimberlite (Udachnaya pipe, Yakutia) was annealed in air for 9 h at 700 degreesC and studied by EMPA, FTIR, UV spectrometry, and TEM using HRTEM, SAED, CBED, AEM, and EELS. ...
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(2006)A series of organoclays with monolayers, bilayers, pseudotrilayers, paraffin monolayers and paraffin bilayers were prepared from montmorillonite by ion exchange with hexadecyltrimethylammonium bromide (HDTMAB). The HDTMAB ...
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(2003)Hydrophysical behaviour of a backfill material produced as a mixture of montmorillonite-rich clays (fine-grained fraction) and ballast material (coarse-grained fraction) is studied. Two different genetic types of clays are ...
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(1995)The relationship between the microtexture and dissolution behaviour of fresh, HF acid-etched and naturally weathered alkali feldspar phenocrysts from the Lower Devonian Shap granite has been investigated by SEM and TEM. A ...
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(2003)A single-crystal X-ray investigation was performed on crystals of P21/c natural pigeonite with varying Ca and Fe* ( = Fe2+ + Mn2+) contents, in order to verify the effect of microtextural disorder on structure refinements ...
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(1995)In many geologic environments, dominantly aqueous solutions contain low concentrations of CO2. At ambient temperature, the typical phase assemblage in fluid inclusions which trap these solutions, consists of a CO2-rich ...
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(2000)Faulting that results in surface ruptures through bedrock can be particularly difficult to date. For example, stratigraphic control on the age of faulting, based on the age of the bedrock, often leaves unacceptably large ...
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(2002)A record of climatic change has been reconstructed for the past 7110 calibrated calendar (cal) years for Lake Telmen, Mongolia, based upon sedimentologic and geomorphic evidence from the lake–watershed system. Lake Telmen ...
Now showing items 7661-7680 of 22924