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Browsing Геология России by Title
Now showing items 2535-2554 of 39195
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(2001)A kinetic model for evaporation of a multi-component condensed phase with a fixed rate constant of the reaction is developed. A binary system with two isotopes for one of the components undergoing simple thermal histories ...
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(PANGAEA, 1931-06-06)Fe-Mn aggregates are presented in the paper where flat and round concretions (from several mm to 10-12 cm in diameter) and Fe-Mn crusts on bivalves and polychaete tubes with different Fe-Mn ratio are described.
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(1997)Soluble and insoluble constituents of modern and ancient (ca. 600 AD) desiccated barley kernels and radish seeds have been studied using high-temperature gas chromatography-mass spectrometry, scanning electron microscopy, ...
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(1998)The utility of the geochemistry of basaltic suites as probes of mantle processes is encumbered by the processing those magmas undergo during transport from the field of melting to the ocean floor. Melt inclusions provide ...
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(1985)Estimation of equation of state parameters for Sn++ and calculation of the thermodynamic properties of other aqueous species and dissociation constants for various stannous and stannic complexes as a function of temperature ...
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(1997)Experiments have been conducted to investigate the chemical reduction of nitrate under conditions relevant to the often low organic carbon environment of groundwaters. At pH 8 and 20+/-2°C, in the presence of Cu(II), NO-3 ...
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(1995)The magnetic fraction was separated from the Richardton H5 chondrite with a hand magnet and was leached with concentrated HF at high temperature for different periods. The resulting metallic fractions and the untreated ...
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(2002)The high molecular weight fraction of dissolved organic matter in a suite of lakes, rivers, seawater, and marine sediment interstitial water samples was collected by ultrafiltration and characterized by molecular level and ...
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(1998)Data are reported for thirty iron meteorites that are members of the magmatic groups, for three main group pallasites, one anomalous mesosiderite, and for three ungrouped irons and an ungrouped pallasite that are similar ...
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(Федеральное государственное бюджетное образовательное учреждение высшего образования «Уральский государственный горный университет», 2019)The relevance of the work is due to the need to improve the method of chemical dating in application to high-uranium accessory minerals that cannot be date by isotopic methods of research. The purpose of the work: the study ...
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(PANGAEA, 2003-10-09)
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(PANGAEA, 1995-09-22)Data obtained during Cruse 49 of R/V Dmitry Mendeleev and of post-cruise studies.
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(PANGAEA, 2004-05-26)
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(2004)Results of electron microprobe analyses (70 determinations) of minerals in the Karasug deposit of complex ores (Fe, F, Ba, Sr, TR, U, and Mo) in Tuva are presented. The chemical compositions and other properties of minerals ...
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(2004)The detailed investigation of melt inclusions in nepheline and perovskite showed that the rock formation proceeded from incompletely saturated with silica high-Ca magmatic melt substantially enriched with alkaline, rare ...
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(PANGAEA, 2003-10-27)
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(PANGAEA, 2009-12-21)
Now showing items 2535-2554 of 39195