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Browsing Геология России by Title
Now showing items 2755-2774 of 39195
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(PANGAEA, 2019-09-05)Here, we provide the results of the clumped isotope analyses of 24 biogenic carbonate samples, along with the results of carbonate reference materials (ETH1–4, Carrara, MuStd, Strauss) and equilibrated gases (25 °C and ...
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(Федеральное государственное бюджетное учреждение науки Институт земной коры Сибирского отделения Российской академии наук, 2016)Cluster analysis is applied for computing stable combinations of geological and geophysical parameters, and areas with such combinations are interpreted as regions that differ in structural and geodynamic features. The ...
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(2004)The CLUSTER mission is intended for the study of the Earth’s magnetosphere and Sun-Earth relationships. Four satellites fly in a tetrahedral formation sending data that can separate spatial from temporal effects for the ...
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(American Institute of Physics, 2010)
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(1997)We have characterized the most phyllosilicate-rich members of the CM chondrite group. Based upon petrographic and compositional factors, we conclude that these particular meteorites have experienced pervasive aqueous ...
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(Федеральное государственное бюджетное учреждение науки Институт земной коры Сибирского отделения Российской академии наук, 2017)
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CO-PRECIPITATION OF SR2+ AND BA2+ WITH ARAGONITE BY MEMBRANE DIFFUSION OF CO2 BETWEEN 10 AND 50 °C (2004)Aragonite is precipitated by a new CO2-diffusion technique from a Ca2+-Mg2+-Cl- solution between 10 and 50 °C. Crystallisation of aragonite instead of calcite occurs by maintaining a [Mg2+]/[Ca2+] ratio of 2 in the fluid. ...
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(1998)Estimates of CO2 emissions at spreading centres, convergent margins and plumes have been reviewed and upgraded using observed CO2/3He ratios in magmatic volatiles, 3He content estimates in the magmatic sources, and magma ...
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(2002)CO2 solubility was measured in a synthetic iron-free phonolite (haplo-phonolite) by equilibrating melt with excess CO2 fluid in a piston cylinder apparatus for a range of pressures (1.0- 2.5 GPa) and temperatures (1300 to ...
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(2002)We determined total CO2 solubilities in andesite melts with a range of compositions. Melts were equilibrated with excess C-O(-H) fluid at 1 GPa and 1300°C then quenched to glasses. Samples were analyzed using an electron ...
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(2004)The solubility of CO2 in dacitic melts equilibrated with H2O-CO2 fluids was experimentally investigated at 1250°C and 100 to 500 MPa. CO2 is dissolved in dacitic glasses as molecular CO2 and carbonate. The quantification ...
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(1999)A comparison of two independent techniques was used to assess the homogeneity of CO2 and H2O concentrations in a number of natural basaltic glasses. Variations in carbon concentration and isotopic ratio were determined by ...
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(2003)Evaluating the feasibility of CO2 geologic sequestration requires the use of pressure-temperature-composition (P-T-X) data for mixtures of CO2 and H2O at moderate pressures and temperatures (typically below 500 bar and ...
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(2005)Correlations presented by Spycher et al. (2003) to compute the mutual solubilities of CO2 and H2O are extended to include the effect of chloride salts in the aqueous phase. This is accomplished by including, in the original ...
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(2002)This paper reviews quality requirements of metallurgical coke for the blast furnace, coke structure, and relationships between structure and quality. Models of prediction of metallurgical coke quality parameters based on ...
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(2003)In many coal-bearing basins, there are numerous coalified fragments of ancient plants (coal-precursors) enclosed in host rocks. Such fragments occur in isolated positions out of the coal beds. In the Russian literature, ...
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Coal Mining Machinery Development As An Ecological Factor Of Progressive Technologies Implementation (IOP Publishing, 2017)At present, a significant amount of energy spent for the work of mining machines and coal mining equipment on coal mines and open pits goes to the coal grinding in the process of its extraction in mining faces. Meanwhile, ...
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(2002)The development of coal petrology and the establishment of a nomenclatural system have proved of major use both for the industrial utilization of coal and for the development of a broad understanding of coal formation and ...
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(1999)The weathering rate of sedimentary organic matter in the continental surficial environment is poorly constrained despite its importance to the geochemical carbon cycle. During this weathering, complete oxidation to carbon ...
Now showing items 2755-2774 of 39195