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Now showing items 9418-9437 of 39377
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(2002)A numerical modelling approach that simulates cracking and failure in rock and the associated seismicity is presented and a technique is described for quantifying the seismic source mechanisms of the modelled events. The ...
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(2002)The study of localized failure under controlled conditions can be accomplished within a laboratory setting with the University of Minnesota plane-strain compression apparatus. The device provides an opportunity to observe ...
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(1999)An investigation of the chemical composition of monazite from a number of localities has been carried out. Samples used include monazites from metamorphic rocks, granitic rocks and a hydrothermal ore deposit. The REE ...
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(2001)Monazite grains from nine different Precambrian rock samples and having concordant isotope dilution U-Pb and Th-Pb ages were used to develop and evaluate techniques for U-Pb, Th-Pb, and Pb-Pb isotopic dating using an ion ...
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(PANGAEA, 2016-03-16)The goal of this study was to examine the potential of a unique X-band SAR dataset to monitor ice phenology and bedfast ice on a number of thermokarst lakes in the Siberian Arctic. Three-year repeat-pass TSX time series ...
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(2003)Synchrotron X-ray photoelectron As 3d and S 2p spectra of gersdorffite reveal that the surface monolayer includes two types of surface anionic species, As-S dimers and As-S multimers (probably tetramers), the latter being ...
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(PANGAEA, 2002-03-06)According to monitoring data gained between 1982-1992, macrobenthos in the Tiksi Bay is characterized by low indices of the total abundance, biomass and taxonomic diversity. 30 macrobenthic species have been recorded in ...
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(2000)Monitoring of subsoil volumetric radon activity in the Paratunka geothermal field began in late October 1997. The aim of this work was to find correlation between the Rn behavior and the geodynamic environment in Kamchatka. ...
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(PANGAEA, 2011-07-27)
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(2015)Abstract Here we present the results from monitoring of the composition of rocks produced during the 2012–2013 fissure eruption at Tolbachik volcano (FTE). Major and trace element concentrations in 75 samples are reported. ...
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(1997)Clay fractions and glauconite (clays) lose 30-80% of the 39Ar produced by the nuclear transformation 39K(n, p)39Ar during irradiation in a reactor. As a result it has not been possible to date clays by the 40Ar-39Ar ...
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(2000)Shock recovery experiments of plagioclase feldspar in contact with pyroxene, shock-loaded at 36-53 GPa, showed that monomineralic glass of plagioclase was mixed with brecciated pyroxenes with virtual absence of mixed-mineral ...
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(2002)The progress in cladistics promoted the revival of the concept of the monophyletic origin of mammals. The discovery of the Early Cretaceous monotreme Steropodon in Australia gave impetus to the development of these ideas. ...
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(2004)Compounds of the meta-autunite group containing monovalent cations (Li, Na, K, Rb, Cs, Ag, TI) have been synthesized by diffusion in gels or by hydrothermal methods, and their crystal structures determined. Single-crystal ...
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(2002)Both the density of terrestrial hot spots and their associated buoyancy flux show non-random distributions. These distributions are bimodal and symmetric about the equator with maxima occurring between 20 and 30° latitude. ...
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(2002)The currently adopted rainfall-based design flood estimation techniques, for example the Design Event Approach, do not account for the probabilistic nature of the key variables except for the rainfall depth. This arbitrary ...
Now showing items 9418-9437 of 39377