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Геология России: Recent submissions
Now showing items 1-20 of 38942
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(2015)U–Pb dating and Hf-isotope analysis of zircons and whole-rock Nd-isotope analyses were carried out on country rocks of the eclogite–gneiss complex of the North Muya dome in the Anamakit-Muya zone of the Baikal Muya ...
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(2015)Garnet amphibolite in the Baoyintu Group, Inner Mongolia, is mainly composed of garnet, hornblende, plagioclase, quartz and minor rutile/ilmenite. Garnet occurs as porphyroblasts surrounded by plagioclase, forming typical ...
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(2006)Сопоставление элементов разномасштабных карт Предлагается алгоритм сопоставления элементов разномасштабных карт, который позволяет использовать семантические базы данных пространственных объектов карт других годов или ...
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(2006)The calcium-isotope composition (?44/42Ca) was analyzed in modern, Cretaceous and Carboniferous marine skeletal carbonates as well as in bioclasts, non-skeletal components, and diagenetic cements of Cretaceous and Carboniferous ...
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(2006)A mixing of metal-loaded acid mine drainage with shallow groundwater or surface waters usually initiates oxidation and/or hydrolysis of dissolved metals such as iron (Fe) and aluminum (Al). Colloidal particles may appear ...
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(2006)The effect of sulfur on the partitioning of Cu in a melt-vapor-brine ? magnetite ? pyrrhotite assemblage has been quantified at 800 °C, 140 MPa, fO2 = nickel-nickel oxide (NNO), log fS2 = - 3.0 (i.e., on the magnetite-pyrrhotite ...
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(2006)Статья посвящена вопросам создания технологической платформы для разработки распределенных информационно-аналитических систем. В первой части статьи выдвигаются основные требования к подобного рода системам и показывается ...
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SEDIMENTARY IRON GEOCHEMISTRY IN ACIDIC WATERWAYS ASSOCIATED WITH COASTAL LOWLAND ACID SULFATE SOILS (2006)We examined the solubility, mineralogy and geochemical transformations of sedimentary Fe in waterways associated with coastal lowland acid sulfate soils (CLASS). The waterways contained acidic (pH 3.26-3.54), FeIII-rich ...
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(2006)Sedimentary basins can contain close to 20% by volume of pore fluids commonly classified as brines. These fluids can become undersaturated with respect to calcite as a result of migration, dispersive mixing, or anthropogenic ...
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(2006)Aragonite was precipitated in the laboratory at 25 °C in isotopic equilibrium with Na-Ca-Mg-Cl-CO3 solutions at two different pH values (i.e., pH = ?8.2 and ?10.8) by the constant addition method. On the basis of the oxygen ...
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(2006)The intensity of biogenic sediment mixing is often expressed as a "biodiffusion coefficient" (Db), quantified by fitting a diffusive model of bioturbation to vertical profiles of particle-bound radioisotopes. The biodiffusion ...
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(2006)A kinetic model for the microbial reduction of Fe(III) oxyhydroxide colloids in the presence of excess electron donor is presented. The model assumes a two-step mechanism: (1) attachment of Fe(III) colloids to the cell ...
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(2006)Evidence from laboratory experiments indicates that fractionation against the heavy stable isotope of carbon (?13C) by bryophytes (liverworts and mosses) is strongly dependent on atmospheric CO2. This physiological response ...
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(2006)The fractionation of sulfur isotopes by the thermophilic chemolithoautotrophic Thermodesulfatator indicus was explored during sulfate reduction under excess and reduced hydrogen supply, and the full temperature range of ...
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(2006)Развитие компьютерных технологий, их применение при изучении закрытых площадей, на основе анализа космических изображений различной генерализации, разномасштабных топографических карт, позволяет получать информацию о недрах ...
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(2006)Group IID is the fifth largest group of iron meteorites and the fourth largest magmatic group (i.e., that formed by fractional crystallization). We report neutron-activation data for 19 (of 21 known) IID irons. These confirm ...
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(2006)Low concentrations of Th and Fe in the Yamato (Y)-86032 bulk meteorite support earlier suggestions that Y-86032 comes from a region of the moon far distant from the Procellarum KREEP Terrain (PKT), probably from the lunar ...
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(2006)We determined by ICP-MS the concentrations and isotopic ratios of Fe, Cu, and Zn in the Ti-rich lunar basalt 74275, in the lunar orange glass 74220, and in up to 10 lunar soils, namely, 14163, 15231, 64501, 66041, 68841, ...
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(2006)The regolith of the Apollo 16 lunar landing site is composed mainly of feldspathic lithologies but mafic lithologies are also present. A large proportion of the mafic material occurs as glass. We determined the major element ...
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(2006)We have determined cooling rates of orthopyroxene crystals from two Mg-suite lunar samples (gabbronorite 76255 and troctolite 76535) and one terrestrial sample (orthopyroxenite SC-936 from the Stillwater Complex), on the ...
Now showing items 1-20 of 38942