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Browsing ELibrary by Title
Now showing items 2751-2770 of 22924
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(2003)A Landau potential with linear-quadratic coupling has been developed to describe interactions between a non-convergent order parameter, QOD, for Fe/Mg ordering, and the order parameter, QD, for the C2/c-P21/c phase transition ...
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(2005)Advances in field observations and experimental petrology on anatectic products have motivated us to investigate the geochemical consequences of accessory mineral dissolution and nonmodal partial melting processes. ...
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(2001)The coupling of viscosity and diffusivity during explosive volcanic degassing is investigated using a numerical model of bubble growth in rhyolitic melts. The model allows melt viscosity and water diffusivity to vary ...
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(2001)The applicability of size-exclusion chromatography (SEC) coupled online with a high resolution ICP-MS (HR-ICP-MS) to investigate the speciation of the platinum-group elements (PGE), Rh, Pd and Pt, was evaluated. Experiments ...
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(2003)We present an extension to the coupling scheme of the spectral element method (SEM) with a normal-mode solution in spherical geometry. This extension allows us to consider a thin spherical shell of spectral elements between ...
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(1999)Chrome-pyrope garnet is a minor but widespread phase in ultramafic rocks of the continental lithosphere; it complex chemistry preserves a record of events related to fluid movements in the mantle, including melt extraction ...
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(2002)Garnet-mica schists from the Scottish Highlands provide new insight into an important mechanism of phyllosilicate growth, termed 'crack-fill porphyroblastesis'. It is shown that grain boundary dilatancy, microcracking and ...
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(1999)It is well accepted and documented that faulting is produced by the cyclic behaviour of a stress field. Some extension fractures, such as veins characterised by the crack-seal mechanism, have also been presumed to result ...
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(2001)Non-conventional diamond anvil cell (DAC) pyrolysis techniques have been developed to monitor in situ the cracking of oils and hydrocarbon compounds using fluorescence spectroscopy (FS). The experiments were conducted under ...
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(2006)The Moon is exceptional and important because it is the only planetary body besides the Earth for which we have both a detailed stratigraphic history and datable rock samples that can be related to specific geomorphologic ...
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(2003)The Earth's continents are cored by Archean cratons underlain by seismically fast mantle roots descending to depths of 200 + km that appear to be both more refractory and colder than the surrounding asthenospheric mantle. ...
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(2004)Paleoclimate studies of continental environments have been hampered by the lack of an independent paleotemperature proxy. A novel sea-surface temperature proxy has been proposed for marine systems based on membrane lipids ...
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(2003)The Koolen metamorphic dome of Chukotka Peninsula has been interpreted as a mid-Cretaceous extensional core complex. On the NW flank of the dome, three lithotectonic units are exposed: (1) High-Grade unit, composed of ...
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(2000)The present paper summarizes the results of the investigations carried out in East Russia within the framework of the International Program of Geological Correlation (350) supported by UNESCO entitled "Cretaceous Environmental ...
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(1998)The character and intensity of Cretaceous events in continental margins are genetically linked with the rate of oceanic crust accretion and intensity of endogenic (plume) activity of the Earth. This is most evidently proved ...
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(2002)These last 10 years, numerical models of mantle convection have emphasized the role of the 670 km endothermic phase change in generating avalanches that trigger catastrophic mass transfers between upper and lower mantle. ...
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(2002)The upper amphibolite facies Koolen gneiss dome was subjected to 600–800 MPa pressures and >700 °C temperatures at deep structural levels, and 400–500 MPa and ∼600 °C temperatures at shallow levels during peak metamorphism ...
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(2003)The Cretaceous stratigraphy and main palaeogeographic features of the North-Eastern Peri-Tethys are briefly summarised on the base of new data. The study is mainly focused on the time-slices that were chosen for the recently ...
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(2001)В юго-восточной части Корейского полуострова вдоль зон левых сдвигов Конджу-Ымсонг и Кванджу-Ёндонг располагается серия эпиконтинентальных бассейнов готерив-альбского возраста, которые, судя по их геометрии и особенностям ...
Now showing items 2751-2770 of 22924