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Геология России: Recent submissions
Now showing items 481-500 of 41109
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(2006)The mysterious “Vilyui” placers of fine gold and Rh-rich platinum have been known in the eastern Siberian Craton since the beginning of the 20th century, but their source rocks are still unknown. However, the large areas ...
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(2006)The labeled atoms of carbon and nitrogen are widely used in biology, biochemistry, and soil science. Both radioactive (14C) and stable (12C, 13C, 15N) isotopes are used as such labels. Recently, an increase in mass ...
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(2006)Previous researches have revealed that major tectonic structures in the oceans correspond to bottom topography. Therefore, morphostructural analysis is one of the most important tools in their study. In this case, the ...
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SHEATHLIKE METASOMATIC GARNET CRYSTALS FROM THE MAKSYUTOVO METAMORPHIC COMPLEX, THE SOUTHERN URALS (2006)The Maksyutovo Complex is located in the southern Urals as a near-meridional belt 180 km long and 12–16 km wide. Eclogites and products of their metasomatic alteration (schists) are widespread in this complex. The alteration ...
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(2006)The Dambukin block of the Stanovoi terrane encloses abundant small (up to 5 km2) massifs, dikes, and sills composed of the cortlandite–pyroxenite–gabbro association. Previously, they were arbitrarily considered as Early ...
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TOBERMORITE-PLOMBIERITE METASOMATITES OF THE GUMESHEVSK SKARN-PORPHYRY COPPER DEPOSIT, MIDDLE URALS (2006)Although calcic hydrosilicates with tobermorite-type structure (tobermorite, plombierite, and tacherenite) are rare minerals, they are rather typical of low-temperature mineral assemblages in some Ca-silicate rocks. Owing ...
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(2006)Gaseous fluid flows from sediments into bottom water of seas and oceans attract attention of oceanographers, particularly specialists in gas geochemistry. Fluid flows from the Black Sea bottom were the main study object ...
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(2006)In this paper, the energy structure of seismicity (ESS) in the Baikal region is studied within the framework of the self-similarity theory when the distribution of shocks is extrapolated by inverse cascade over the scale ...
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(2006)The Triassic cherty formation of Sikhote Alin hosts metalliferous deposits. They are commonly represented by siliceous–rhodochrosite rocks and their metamorphosed analogues (primarily, consisting of Mn-silicates and ...
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(2006)In the present-day geological structure of the Schuch’ya area in the Polar Urals, the ultramafic and dunite–wehrlite–clinopyroxenite complex (DWC) rocks of the Syumkeu massif (the northernmost ophiolitic massif of the ...
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(2006)Progress recently achieved in the development of mass spectrometric equipment made it possible to significantly improve the accuracy of radioisotopic dating. For example, the errors of U–Pb and 40Ar/39Ar dates quoted in ...
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(2006)In the Dal’nerechensk, Ol’ginsk, and Dal’negorsk ore districts of Sikhote Alin, the Triassic–Jurassic carbonaceous sequence includes metamorphosed metalliferous sediments. The upper, Jurassic part of the sequence is largely ...
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(2006)Genetic aspects of the generation of oil alkanes suggest that the genesis of oils is controlled by a succession of factors of a single genetic chain, which indicate that the possible sources of oils are certain inorganic ...
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(2006)Several hydrothermal sulfide structures were sampled using Mir manned submersibles in the relatively shallow Lucky Strike vent field, Mid-Atlantic Ridge; the bathymetric position of these structures varies by approximately ...
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(2006)In most alkaline-ultrabasic-carbonatite ring complexes, the distribution of trace elements in the successive derivatives of mantle magmas is usually controlled by the Rayleigh equation of fractional crystallization in ...
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(2006)During recent years, the basins of the Kara Sea (Kamennomysskaya, Obskaya, and Chugor'yakhinskaya structures) in the Russian Federation have been considered as promising regions for oil and gas exploration and, simultaneously, ...
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(2006)The phase state of hydrocarbon accumulations was predicted using recent drilling data for three oil and gas complexes of the northern regions of the West Siberian petroliferous basin: Lower and Middle Jurassic, Upper ...
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(2006)Alkaline magmatism has occurred since 2.5-2.7 Ga and its abundance has continuously increased throughout the Earth's history. Alkaline rocks appeared on the Earth with changes in the geodynamic regime of our planet, i.e., ...
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(2006)The first sweeping generalizations on gas compositions in nepheline syenite, trachytoid khibinite, ijoliteurtite, rischorrite, malignite, lujavrite, foyaite, and apatite–nepheline ores were been carried out by Petersil’e ...
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(2006)The origin of zircon is of great importance for the petrological interpretation of U–Pb dates. Direct information on the magmatic origin of zircon from intensely metamorphosed Archean rocks is provided by findings of primary ...
Now showing items 481-500 of 41109