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Browsing ELibrary by Title
Now showing items 13747-13766 of 21934
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(2002)Spherical harmonic error analysis fully relies on the validity of the a priori observational and stochastic models. In this paper we validate error analysis results of the gradiometer mission GOCE by a full-fledged spherical ...
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(2001)Forsterite single crystals doped with vanadium were grown from melt using the Czochralski technique in various oxidation-reduction conditions: nitrogen, nitrogen with oxygen, argon, and argon with hydrogen atmospheres. The ...
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(1996)We assess the potential of using foraminiferal calcite as a paleoceanographic indicator of seawater V concentrations. Laboratory culture experiments show that living benthic and planktonic foraminifera incorporate V into ...
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(2003)The compatibility of vanadium (V) during mantle melting is a function of oxygen fugacity (fO2): at high fO2’s, V becomes more incompatible. The prospects and limitations of using the V content of peridotites as a proxy for ...
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(2002)New measurements of partition of vanadium (V) between spinel, garnet and a pigeonite-like high pressure (P) pyroxene and magnesian liquids on the mantle solidus as a function of oxygen fugacity (fO2) are presented. The ...
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(2004)We measured the adsorption of V(V) onto goethite (α-FeOOH) under oxic (PO2 = 0.2 bar) atmospheric conditions. EXAFS spectra show that V(V) adsorbs by forming inner-sphere complexes as VO2(OH)2 and VO3(OH). We predicted the ...
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(2001)Seismograms recorded by the Global Seismic Network can be processed to obtain receiver strips for each earthquake. The receiver strips for all earthquakes can be analysed simultaneously in the time domain by using the ...
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(1996)Dehydration-melting experiments from 10 to 20 kbar were performed on a metavolcanoclastic rock containing (in vol. %) biotite (16), amphibole (15) and epidote (13) in addition to plagioclase and quartz. At 10 and 12.5 kbar ...
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(2002)Spatial patterns of soil in alpine tundra just above timberline may determine patterns of advance by woody species. Patterns of advance since the Little Ice Age show spatial aggregation. If soil resources have similar ...
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VARIABILITY IN FAULT SIZE SCALING DUE TO ROCK STRENGTH HETEROGENEITY: A FINITE ELEMENT INVESTIGATION (2003)Practical application of fault size scaling relationships usually involves extrapolation of a limited data set over a scale range beyond that observed or into adjacent unstudied areas. Here we investigate the validity of ...
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(2002)Fine-grained sediment waves have been observed in many modern turbidite systems, generally restricted to the overbank depositional element. Sediment waves developed on six submarine fan systems are compared using high-resolution ...
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(1997)We have analyzed the stable carbon isotope ratios of various organic-walled microfossils preserved in marine sediments of Silurian and Devonian age. The aim of this study is to determine the amplitude of isotopic fractionations ...
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(2004)Variability in sorbed water content was studied on several standard smectites, as dependent on the relative humidity (RH=0.5, 0.95 and 1.0), on temperature (constant 30 °C and variable room temperature) and on sorption ...
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(2000)Three sediment cores from the Laptev Sea continental margin were investigated for their clay mineralogy by X-ray diffraction to study the fluvial sediment supply since the late Weichselian. In the study area, the clay-mineral ...
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(2000)In order to reconstruct the depositional environment from the Laptev Sea continental slope and shelf during the past ~15,000 years BP maceral analysis was carried out on two sediment cores (PS2458-4, PS2725-5) and compared ...
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(1996)Reinterpretation of field studies of bedload transport allowed some power-law relations to be obtained between different quantities. They were taken as a basis for the construction of a numerical model simulating bedload ...
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(1998)The isotopic characterization of trace organic species produced during biomass burning may allow a better understanding of the source and fate of combustion-derived organic matter. In order to assess the utility of compound ...
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(1993)This paper discusses the distribution of trace element concentrations in cogenetic suites of lavas, based on the study of trace element histograms. For each histogram, the variability is calculated (V = s/m, where m is the ...
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(1992)The ratio has been measured in Hg fractions released by stepwise heating (and in four cases in solvent extracts) from bulk samples of 17 different stone meteorites using the radiochemical neutron activation (RNA) method. ...
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(2004)Major and trace element compositions and Sr, Nd, Pb, and Hf isotope ratios of Aleutian island arc lavas from Kanaga, Roundhead, Seguam, and Shishaldin volcanoes provide constraints on the composition and origin of the ...
Now showing items 13747-13766 of 21934