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Browsing Геология России by Title
Now showing items 3709-3728 of 39126
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(2000)Techniques for the high precision measurement of 65Cu/63Cu ratios by multiple-collector plasma-source mass spectrometry has been developed. Two approaches, namely Zn-doping and ''sample-standard bracketing'', have been ...
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(2001)This paper discusses nitrogen determination with the Cameca SX50 electron microprobe using PC0 as an analyzing crystal. A set of conditions using differing accelerating voltages, beam currents, beam sizes, and counting ...
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(PANGAEA, 2014-07-25)
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(1997)Previous studies have indicated that the separation and quantification of different species of reduced sulphur in sediments have suffered from uncertainty in selectivity and recovery of the acid volatile sulphur pool and ...
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(2004)Stress tensors are regularly determined from fault-slip and/or earthquake focal mechanism data in structural geology and seismotectonics. The inverse problem is non-linear, unless empirical rules of rupture and friction ...
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(EDP Sciences, 2016)The method of determination of rhodium by the method of Stripping voltammetry in ores and technogenic raw materials has been developed. Determination of rhodium (III) in solution by Stripping voltammetry method was carried ...
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(2004)We present a complete set of stability constants ( SO 4β 1) for the monosulfato-complexes of yttrium and the rare earth elements (YREE), except Pm, at I = 0.66 m and t = 25°C, where SO 4β 1 = [MSO 4+] × [M 3+] -1[SO 42-] ...
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(2004)Apparent partition coefficients of Sr and Ba between calcium phosphate and water were measured experimentally for temperature ranging from 5°C to 60°C. Calcium phosphates were precipitated from an aqueous mixture of Na2HPO4 ...
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(2004)Thermodynamic properties of the following phase reactions in the Ag-Au-S system have been investigated via electromotive force (EMF) measurements in solid-state galvanic cells with Ag4RbI5 as a solid electrolyte: Ag(cr) + ...
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(2001)The structures of Ca2CoSi2O7, Ca2MgSi2O7, and Ca2(Mg0.55Fe0.45)Si2O7 have been determined in the temperature range between 297 and 773 K with arbitrary intervals. The structures of the incommensurate phase of the three ...
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(2001)This study is on the first direct measurements of the 36Ar/38Ar isotopic ratio in both the interstream (IS)-associated and coronal hole (CH)-associated solar wind. Two summed mass spectra are compiled for each solar wind ...
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(1997)We report measurements of the susceptibility of a variety of elemental and organic carbon samples to oxidative degradation using both acid dichromate and basic peroxide reagents. Organic carbon is rapidly oxidized using ...
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(1987)Oriented kimberlite specimens (total of 200 pieces) were collected on the benches and in the bed of an exploratory opencut that exposed bedrock to a depth of 7 to 8 m at about the center of the pipe. The porphyric kimberlite ...
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(1997)Previous results for stepped-heating experiments on micas have been used to develop a sealed-ampoule technique for the determination of the ammonium contents of small samples (1-10 mg) of muscovite, biotite and whole-rock ...
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(2000)H2O-CO2 fluid inclusions are common in nature but their accurate analysis by microthermometry has been hindered by insufficient characterisation of the fluid properties along the solvus (high temperature miscibility boundary) ...
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(2001)To make quarrying profitable, the blasting should effectively disintegrate the rock mass whilst at the same time minimising damage to the individual rock fragments. The zone of damage around blast holes has been considered ...
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(2003)An earthquake with magnitude 4.7 occurred on June 13,2003 with an epicenter almost 65 km North of Athens. This was preceded by Seismic Electric Signals recorded at a station lying approximately 30 km ESE of Athens. Beyond ...
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(F. Giannini, 1960)
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(1995)A general method for the determination of the coseismic fault slip distribution by inversion of geodetic data is presented. One type of inverse problem and its solutions are investigated by the finite element and regularization ...
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(2003)Degradation of frozen layers begins when average annual temperature of frozen rocks is not less than temperature of the layer thawing. Two stages of the degradation are noted. At the first stage, heating of the frozen layer ...
Now showing items 3709-3728 of 39126