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Browsing Геология России by Title
Now showing items 13941-13960 of 39124
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(2003)Previous studies of both ore and non-ore-bearing intrusives in the Permo-Triassic flood basalts of the Siberian platform in the Noril’sk area have shown that high-grade Ni–Cu–platinum group elements (PGE) mineralization ...
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(1997)Down-core trends for extents of iron sulfidation in upper Holocene microlaminated deposits of the Black Sea abyssal plain imply that most of the pyrite in these sediments is formed in the sulfidic water column and/or very ...
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(2001)Synchrotron radiation S K-edge XANES spectra and unit-cell parameters are used to investigate the local electronic structure of non-stoichiometric binary and ternary Fe-Co-Ni monosulfide solid solution (mss; M0.923M = Fe, ...
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(2004)The effect of sulfur on phosphorus solubility in rhyolitic melt and the sulfur distribution between apatite, anhydrite, melt and fluid have been determined at 200MPa and 800–1,100C via apatite crystallization and dissolution ...
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(2004)Information about the state of sulfur in silicate melts and glasses is important in both earth sciences and materials sciences. Because of its variety of valence states from S2− (sulfide) to S6+ (sulfate), the speciation ...
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(2002)Thermally immature, extremely sulfur-rich kerogens from the Orbagnoux deposit have been extensively studied over the last few years for their chemical structure, source organisms and depositional conditions. However, ...
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(1997)Speciation of iron and sulfur species was determined for two recent sediments (La Trinitat and Lake Ciso) which were deposited in environments with a high biological productivity and sulfate-reducing activity. In sediments ...
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(2000)The Palaeoproterozoic Ni–Cu sulphide deposits of the Pechenga Complex, Kola Peninsula, occur in the lower parts of ferropicritic intrusions emplaced into the phyllitic and tuffaceous sedimentary unit of the Pilgujärvi Zone. ...
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(1997)Sulphur isotope data are presented for 86 separated samples of pyrite and other sulphides and four anhydrites from within five massive sulphide deposits in the Norwegian Caledonides, each of which was metamorphosed at ...
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(1997)Sulphurisation has been recognised as the most important diagenetic pathway acting on hopanoids in the organic-rich limestones, marlstone, and dolomite investigated. The qualitative and quantitative analysis of free and ...
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(1997)Thirty years of research are brought together into one coherent summary of carbon and hydrogen isotope effects during the thermocatalytic production of methane from model compounds, petroleum, source rocks, and coals. The ...
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(2004)After the disastrous Kobe earthquake, the former Science and Technology Agency (STA) of Japanese Government proposed the Integrated Earthquake Frontier Project. Within the framework of this project, two institutions (RIKEN ...
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(2004)In the compilation of World Stress Map, 9% of data comes from overcoring and hydraulic fracturing measurement, 23% from borehole breaking off, 63% from earthquake focal mechanism, and 5% from young geological investigation ...
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(PANGAEA, 2013-10-17)
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(PANGAEA, 2017-01-10)Little is known about the climate evolution on the Kamchatka Peninsula during the last glacial?interglacial transition as existing climate records do not reach beyond 12 ka BP. In this study, a summer temperature record ...
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(2002)A brief review is presented of the progress, to date, in constructing a long, continuous ring-width chronology from living and subfossil Siberian larch (Larix gmelinii) in the eastern part of the Taimyr peninsula. A near ...
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(2003)Between 1300 and 500 Ma the Neoproterozoic supercontinent Rodinia aggregated (1300–950 Ma), broke up (850–600 Ma) and a new supercontinent, Pannotia-Gondwana, formed (680–550 Ma). Only c. 11% of the preserved continental ...
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(2000)The expansivity of supercooled diopside liquid has been determined using techniques of container-based dilatometry. Two thermal strategies have been employed, one in which the sample is brought to volumetric equilibrium ...
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(Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования «Пермский государственный национальный исследовательский университет», 2016)The methods of high-resolution electron microscopy were applied to study nanotex-tures on the surface of placer gold grains (the Urals, Siberia, Altai in Russia, Yukon Territory in Canada, etc.). Among superficial nanotextures, ...
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(1989)Corundum is formed primarily by igneous activity, and by contact and regional metamorphism. The finding of supergene corundum in syngenetically frozen sedimentary rocks of Yakutia reflects the specific characteristics of ...
Now showing items 13941-13960 of 39124