Browsing ELibrary by Subject "olivine"
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Browsing ELibrary by Subject "olivine"
Now showing items 1-12 of 12
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(2001)Analysis of major rift systems suggests that the preexisting structure of the lithosphere is a key parameter in the rifting process. Rift propagation is not random, but tends to follow the trend of the orogenic fabric of ...
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(2003)Electron irradiation experiments were performed using a 30-keV electron beam on single crystals of olivine in a scanning electron microscope (SEM) and in an electron microprobe (EMP). We determined that, under certain ...
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(2003)We have performed partitioning experiments to assess the role of olivine in controlling the behavior of rhenium and the platinum group elements (PGEs) during basalt petrogenesis. Olivines were crystallized from an iron-bearing ...
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(2004)Diffusion couple experiments were carried out with San Carlos olivine (Fo90) and NiFe alloys (Ni100, Ni97Fe3, Ni90Fe10) or other olivine compositions (Fo100, Fo25) in order to determine the dependence on temperature, oxygen ...
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(2004)Barred olivine (BO) chondrule texture with olivine rim was successfully reproduced by cooling experiments under evacuated conditions for an FeO-rich, alkali-free, low liquidus (1215° C), analog chondrule composition. The ...
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(2001)Compositions of ∼2500 spinel–olivine pairs and 400 melt inclusion–spinel pairs have been analysed from 36 igneous suites from oceanic, arc and intraplate tectonic settings. Our data confirm that Cr-spinel mg -number is ...
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(1998)Synchrotron micro-XANES spectroscopy (SmX) is used to examine the amount and distribution of Fe2+ and Fe3+ in five samples of fayalite previously studied by Mossbauer spectroscopy. Rockport fayalite is homogeneous and the ...
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(2004)From a total of 335 olivine crystal grains, crystallographically orientated platelets and, where possible, parallelepipeds were prepared, chemically analysed by electron microprobe, examined under the polarisation microscope, ...
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(2004)Melt inclusions are small portions of liquid trapped by growing crystals during magma evolution. Recent studies of melt inclusions have revealed a large range of unusual major and trace element compositions in phenocrysts ...
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(2004)Single-crystal elastic constants of a natural Fe-rich olivine (Fe 0.94 Mn 0.06) 2 SiO 4 were determined by Brillouin scattering to 12.1 GPa. The aggregate bulk modulus, shear modulus, and their pressure derivatives are K ...
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(2004)The solubility of hydrogen in Mg-Fe olivines as a function of temperature and iron concentration was investigated by hydrothermally annealing single crystals of synthetic forsterite and San Carlos olivine. Experiments were ...
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(2004)Inclusions of quenched silicate liquid in igneous phenocryst phases represent important windows into the pre-eruption chemistry of volcanic rocks. Melt inclusions are subject to a variety of potential modifications after ...
Now showing items 1-12 of 12