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Browsing ELibrary by Title
Now showing items 2778-2797 of 21934
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(2003)This study presents carbon and oxygen stable isotope data obtained from high-resolution sampling (<500 μm) of the brachiopod terebratalia transversa from san juan islands (washington state, usa). aim this study is to unravel ...
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(2002)X-ray microprobes are among the most important new analytical techniques to emerge from third generation synchrotron facilities. Here we show how X-ray fluorescence, diffraction, and absorption can be used in parallel to ...
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(2003)Within a geological massif in a stable geodynamical situation contacts on the grain boundaries in polycrystalline rocks at great depths are continuous and firm. The stress release of those rocks during drilling and excavation ...
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(1997)Isotopically labeled n-hexadecane doped at the percent level in three crude oils is used to determine the intrinsic decomposition kinetics and mechanism of n-alkanes in petroleum. Adjacent 13C labels at the end of the ...
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(1995)Rates and pathways of decomposition of three aliphatic amines (monomethyl, dimethyl, and trimethyl amine) and three amino acids (alanine, glutamic acid, and lysine) were investigated in anoxic salt marsh sediments dominated ...
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(1997)This paper thoroughly describes the decomposition procedure, using the example of DE- COMPXR (Lanson 1990). The steps of the decomposition procedure are: 1) preliminary data processing; 2) decomposition; 3) validation of ...
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(2004)Decomposition conditions of methane hydrates in sediments were measured during formation-decomposition cycles. As test sediments, we used silica sand, sandstone, and clays (kaoline and bentonite), which are typical natural ...
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(2002)DRIFT (diffuse reflectance infrared Fourier-transform) spectroscopy was used to follow the early transformations that take place after the incorporation of organic materials in soil. Alfalfa (A), dried maize (DM), ...
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(1998)High pressure, high temperature quench-type experiments were carried out on serpentine to pressures of 53 GPa and temperatures between 800-1800°C. X-ray analyses show that recovered phase assemblages varied considerably ...
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(2001)Carbon mineralization of fresh and aged diatoms (Skeletonema costatum) and barley hay (Hordeum vulgare) was followed for 23 to 35 d in sandy and silty sediment. By the use of a thin-layer flow-through technique, it was ...
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(2003)An experimental study of H2O exsolution, bubble growth and microlite crystallisation during ascent (decompression) of silicic magmas in the volcanic conduit is presented. Isobaric and decompression experiments were performed ...
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(1990)There exists a group of igneous rocks, generated in an environment of intense fluid activity, from specific fluid - silicate systems in which the concentrations of fluids are comparable to those of the petrogenic oxides. ...
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(2003)This paper presents a new decoupled form of the formula for common-shot or common-receiver amplitude-preserving elastic prestack depth migration (PreSDM), which can be used for estimating angle-dependent elastic reflection ...
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(2003)The simulation of sedimentary basins aims at reconstructing its historical evolution in order to provide quantitative predictions about phenomena leading to hydrocarbon accumulations. The kernel of this simulation is the ...
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(2003)A state-space representation of the transfer function-noise (TFN) model allows the choice of a modeling (input) interval that is smaller than the measuring interval of the output variable. Since in geohydrological applications ...
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(2003)During the Hauterivian three important phases of platform drowning, phosphogenesis and mesotrophic carbonate deposition along the northern margin of the Tethys are not mirrored by positive δ[13]Ccarb excursions such as ...
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(2002)Current knowledge of the Earth's gravity field and its geoid, as derived from various observing techniques and sources, is incomplete. Within a reasonable time, substantial improvement can only come by exploiting new ...
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(2001)The paper presents the results of ten-years deep drilling on Baikal (joint Russian-American-Japanese Baikal Drilling Project). During the project run, five sets of boreholes were drilled in various geomorphic structures ...
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(2001)The fluid inclusions preserved in high and ultrahigh pressure rocks provide direct information on the compositions of fluid phases evolved during subduction zone metamorphism, and on fluid–rock interactions occurring in ...
Now showing items 2778-2797 of 21934