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Browsing Геология России by Title
Now showing items 3725-3744 of 39126
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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 ...
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(1994)The hydrogen isotopic measurement (∆D) of the non-exchangeable hydrogens in herbivore bone collagen has potential for paleoclimate research. The authors have developed the methodology for extracting the hydrogen from ...
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(2002)An approximate description of the zone of influence around the propagation path for a surface wave is provided by investigating the Fresnel zones for the frequency range of interest. The influence zone about surface wave ...
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(1995)A Cameca 4f ion microprobe has been used in conjunction with laser and conventional analytical techniques to measure the oxygen isotope fractionation between magnetite and water at 350°C. A set of experiments in which large ...
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(2004)Mass fractionation laws relate the fractionation factor αA for one isotope ratio to the fractionation factor αB for a second isotope ratio of the same element, with a fractionation exponent β such that αA = αBβ. The exponent ...
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(2003)An approach to scaling that has found considerable utility in the field of physical oceanography is based on the auto-covariance function (ACF). It is demonstrated to also be useful in determining the characteristic length ...
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(1998)This study presents a new approach for determining the partial molar volume and its pressure derivative for a silicate liquid component through an experimental determination of the isothermal pressure dependence of the ...
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(2006)This paper reports the first reliable quantitative determination of the thermal metamorphism grade of a series of nine CV3 chondrites: Allende, Axtell, Bali, Mokoia, Grosnaja, Efremovka, Vigarano, Leoville, and Kaba. The ...
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(1997)A new method for determination of the platinum group elements (PGE's: Ru; Rh; Pd; Ir; Pt) in geological samples, using microwave-assisted acid digestion and alkali fusion, separation of the PGE's by cation-exchange ...
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(1987)The paper presents radiologic ages of various volcanic rocks of two regions, the Pontocaspian region and the Greater Kurile Ridge, obtained by track method of dating volcanic ash and tuff that was developed by the present ...
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(1993)A model of quartz pressure dissolution via grain boundary diffusion through an adsorbed water layer, incorporating the effects of silica precipitation kinetics is used to derive a simple expression indicating whether ...
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(2004)To determine the second critical end point in silicate-H2O systems, a new method for the direct observations of immiscible fluids has been developed using a synchrotron X-ray radiography technique. High-pressure and ...
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(2003)The formation temperature below the sea or lake floor is frequently measured with a sensor probe that is inserted into the unconsolidated sediment, and the thermal conductivity of sediment is measured in situ with an ...
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(2003)Thermal recovery in boreholes cooled by circulation of drilling mud has been modeled for estimating formation temperature and thermal conductivity. Coupled with a finite-element simulation of heat conduction, inverse ...
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(2002)This study presents a new technique for the determination of precise and accurate concentrations of the high field strength elements (HFSE) Zr, Hf, Nb and Ta. The Ta concentration was determined for the first time by the ...
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(2002)Partition coefficients (zircon/meltDM) for rare earth elements (REE) (La, Ce, Nd, Sm, Dy, Er and Yb) and other trace elements (Ba, Rb, B, Sr, Ti, Y and Nb) between zircon and melt have been calculated from secondary ion ...
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(1997)δ17O and δ18O values have been measured for isotopic reference samples VSMOW and SLAP, the intercomparison material GISP and one laboratory standard sample MSA6. The oxygen liberated by the decomposition of these water ...
Now showing items 3725-3744 of 39126