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Browsing ELibrary by Title
Now showing items 10601-10620 of 21934
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(2001)Conditional surface binding constants and complexation capacities for Zn, Pb, Cd, and Cu were determined from surface titration experiments of heterogeneous natural aquatic particulate matter of different origin and ...
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(1996)The two-block spring-mass model has been assumed to be a low order approximation for stick-slip behaviour of faults. Chaoticity of this model has been studied earlier. This paper proposes a spectral method of evaluating ...
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(1987)Assuming that the earthquake focus is a rock volume filled with aftershocks, the author considers the concept of the center C of an earthquake and the distance ri from it to any point on the earth's surface. For this purpose ...
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(1995)The dynamics of magma flow through a reservoir connected to a fissure in an elastic medium is investigated. Magma is supplied to the reservoir at a rate which may vary with time. The distribution of fluid pressure, the ...
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(1998)Using a method of preparing polished thin-sections described in this paper, we are able to detect microdiamonds in high-pressure metamorphic rocks quickly and quantitatively by a distinctive striation pattern on the polished ...
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(1997)Existing procedures for 230Th dating of phosphate-rich materials (bone, teeth) are labor-intensive and troubled with variable, operator-dependent results. A liquid-liquid extraction procedure was developed, using a ...
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(1998)In this paper we examine the effect of inhibition on mineral dissolution rate. We postulate a reaction mechanism that involves catalysis and inhibition. The reaction mechanism consists of fast adsorption of a catalyst ...
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(1998)In this paper we examine the effect of inhibition on mineral dissolution rate. We postulate a reaction mechanism that involves catalysis and inhibition. The reaction mechanism consists of fast adsorption of a catalyst ...
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(2003)Finite element models of square objects in a contrasting matrix in simple shear show that the objects deform to a variety of shapes. For a range of viscosity contrasts, we catalogue the changing shapes and orientations of ...
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(1997)A large instrumental mass fractionation (IMF) occurs during the measurement of oxygen isotope ratios by secondary ion mass spectrometry and the magnitude of this fractionation can be dependent upon sample chemistry, resulting ...
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(1998)The calibration of U-Pb and Th-Pb ratios in Th-U-rich minerals measured by SIMS usually assumes that there are no matrix effects arising from the compositional difference between standard and sample. Matrix effects have ...
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(2002)This paper describes microanalysis techniques using secondary ion mass spectrometry (SIMS) to measure the abundances and isotopic compositions of hydrogen, carbon, fluorine, sulfur and chlorine in volcanic glasses. SIMS ...
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SIMULATED ANNEALING INVERSION OF MULTIMODE RAYLEIGH WAVE DISPERSION CURVES FOR GEOLOGICAL STRUCTURE (2002)Simulated annealing was used to invert fundamental and higher-mode Rayleigh wave dispersion curves simultaneously for an S-wave velocity profile. The inversion was applied to near-surface seismic data (with a maximum depth ...
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(2001)Simulated annealing has been applied to seismic ray tracing to determine the minimum traveltime ray path connecting two points in complex 3-D media. In contrast to conventional ray tracing schemes such as shooting and ...
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(1999)The Fe-Mg thermometer widely used to infer the “equilibration” temperature of garnet-clinopyroxene assemblages of eclogites records the progressive blocking of diffusion-limited exchanges between coexisting mineral phases. ...
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(2001)Numerical simulations indicate that mechanical dispersive mixing can be the dominant mass transport mechanism in large peatlands. Dispersive mixing driven by lateral flow can drive solute fluxes from the mineral soil upward ...
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(2003)Soil moisture (SM) plays an important role in land surface and atmospheric interactions. It modifies energy balance at the surface and the rate of water cycling between the land and atmosphere. In this paper we provide a ...
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(2003)Initiation of macropore flow either from the soil surface or from a saturated soil layer at depth is a first order control on water flow in macropores and water transfer from macropores into the surrounding soil matrix. ...
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(2001)Over the past decade computer simulation techniques have become an increasingly valuable tool in science as an aid to the interpretation of experimental data and as a means of yielding an atomic level model (Catlow et al. ...
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(2003)During propagation through random media, impulsive waves radiated from a point source decrease in amplitude and increase in duration with increasing travel distance. The excitation of coda waves is prominent at long lapse ...
Now showing items 10601-10620 of 21934