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Browsing ELibrary by Title
Now showing items 11970-11989 of 21638
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(2000)We reevaluate the effects of sampling artifacts on estimates of the flux of cosmic dust to Earth by modeling the population of extraterrestrial particles as a function of surface-area and time-interval sampled. Results ...
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(2006)The effects of small amounts of H2O (<4?wt % in the melt) on the multiply saturated partial melting of spinel lherzolite in the system CaO–MgO–Al2O3–SiO2 ± Na2O ± CO2 have been determined at 1·1?GPa in the piston-cylinder ...
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(2005)Atomic force microscopy (AFM) and Derjaguin-Landau-Verwey-Overbeek (DLVO) theory in combination with the interaction force boundary layer (IFBL) model have been used to empirically and theoretically calculate sticking ...
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(2002)The cracks in a porous matrix that is subjected to a change in the applied stress or fluid pressure will undergo a distortion related to their orientation relative to the principal directions of the applied stress. Both ...
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(2000)Raman spectra have been obtained for gold-chloride solutions at elevated temperature and pressure, with gold concentrations of 0.005 to 0.04 M and varying pH. A hydrothermal cell has been developed that allows Raman analyses ...
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(1996)Thermochemical sulfate reduction (TSR) is a well known process that can lead to sour (H2S-rich) petroleum accumulations. Most studies of TSR have concentrated upon gas chemistry. In this study we have investigated ...
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(2000)Experiments were conducted at 1 GPa on four starting materials to investigate the effects of variable mineral proportions on the melting systematics of compositionally fertile peridotitic assemblages. Starting materials ...
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(2000)We have measured the stable carbon isotopic composition of bulk organic matter (POC), alkenones, sterols, fatty acids, and phytol in the coccolithophorid Emiliania huxleyi grown in dilute batch cultures over a wide range ...
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(2001)Data from a series of laboratory experiments show the relationships between measured correlation spectrometer (COSPEC) sulfur-dioxide (SO2) burdens, automatic gain control (AGC) deflections, and visible wavelength opacities ...
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(2001)Transfer of fluid between connected cracks may occur during the passage of seismic waves. Such fluid flow can be modelled using an extension of effective medium theory (Hudson et al. 1996) and is effected via non-compliant ...
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(2000)The taxonomic composition and structure of Eifelian plant communities of central Kazakhstan and the orogeny-influenced distribution of taxa are discussed. Circular diagrams are plotted for individual floral taxa from ...
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(2004)Complex field work in combination with the detailed interpretation of aerial and satellite photographs allowed us to discovered for the first time a large collapsed Elbrus Caldera (17×14 km along the edge of outer escarpment ...
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(2002)This work reports on the evaluation of the electric field gradient (efg) in synthetic fayalite α-Fe2SiO4 using three different procedures: (1) experimental, with single-crystal Mossbauer spectroscopy (SCMBS) on the three ...
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(1985)Electrical conductivity of the following molten silicate systems (in mol%): 60SiO2-40Na2O; 65SiO2-35Na2O; 75SiO2-25Na2O; 78SiO2-22Na2O; 72SiO2-24Na2O-4CaO; 66SiO2-19Na2O-15H2O; and an anhydrous and hydrous (4 wt% H2O) Mt. ...
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(2003)The ELF electron localization function was used to locate regions ascribed to localized nonbonding electrons as favorable docking sites for hydrogen atoms in coesite, quartz, and stishovite. A mapping of the function for ...
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(2001)Arid and semi-arid environments are important sources for the atmospheric loading of PM10 (particulate matter <10 μm), although the emission of this material is often limited by surface crusts. study investigates and ...
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(2002)The enthalpies of drop solution in lead borate (2PbO·B2O3) of four Mg-staurolite samples, synthesized at 720°C and pressures between 2 and 5 GPa, were measured by high-temperature oxidemelt calorimetry at 702°C. Staurolite ...
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(2004)The Bartonian Age of subtropical small-leaved fossil flora from green clay members of the Tavda Formation, the Pavlodar area near Irtysh River, is substantiated for the first time based on dinocysts detected in outcrops ...
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(2005)The three-dimensional velocity structure of upper crust in the epicentral area of the Chuya earthquake was imaged using traveltimes of P and S waves from aftershocks. The northeastern part of the area including the territory ...
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(1997)Unit-cell parameters of magnesite have been measured to high precision between 0 and 7 GPa using single-crystal X-ray diffraction. The isothermal bulk modulus of magnesite determined from fitting a Birch-Murnaghan third-order ...
Now showing items 11970-11989 of 21638