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Now showing items 16419-16438 of 39066
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(PANGAEA, 2004-07-13)Samples of under ice water were collected at 4 stations not far from the White Sea Biological Station of the Zoological Institute RAS (Chupa Inlet, Kandalaksha Bay) in April 2002. For the first time it was shown that in ...
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(2002)The principles of building an information retrieval system (IRS) for the logging and storage of the primary results of spore-pollen analysis are considered. The structure of the IRS Spore-Pollen Analysis (SPA) is described. ...
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(Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования «Пермский государственный национальный исследовательский университет», 2018)In the monograph of professor of Mineralogy and Petrography Department B.M. Osovetsky "Natural nanogold", a mineral-concentrators of nanogold, aggregates of gold nanoparticles, "aggregate" gold on the nanoscale, genesis ...
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(2004)Using hierarchic ore-formation analysis methods it is shown that thin sulfidization zones in several regions represent the formations, whose composition most fully reflects mineralogical types of polychronous and monochronous ...
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(2000)Intense magnetic remanence (100-1000 A/m) associated with MD hematite and/or titanohematite and associated with high Koenigsberger ratios (40-1000) indicate that magnetic remanence may dominate the total magnetization if ...
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(2001)Structure of rocks influences geomechanical processes in rock mass and determines methodology of geophysical instruments. Complex structure of the rocks leads to necessity to design multi-channel systems for monitoring the ...
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(2002)We used X-ray absorption spectroscopy at the Al K-edge to investigate the atomic structure of biogenic silica and to assess the effect of Al on its crystal chemistry. Our study provides the first direct evidence for a ...
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(2003)A quantitative kinetic model for the growth of the different garnet porphyroblast microstructures (type 1 and type 2) of the Western Schneeberg Complex (WSC) is presented. These porphyroblasts formed by a multiple nucleation ...
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UNROOFING HISTORY OF LATE PALEOZOIC MAGMATIC ARCS WITHIN THE "TURAN PLATE" (TUARKYR, TURKMENISTAN) (2002)Stratigraphic, sedimentologic and petrographic data collected on the Kizilkaya sedimentary succession (Western Turkmenistan) demonstrate that the “Turan Plate” consists in fact of an amalgamation of Late Paleozoic to ...
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(2003)Uncertain soil properties are often modeled as random fields. This renders the unsaturated flow equations stochastic. Determining statistics of pressure head statistics, ψ, is nontrivial, since the Richards equation is ...
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(2003)An explicit, essentially 2D solution for steady unsaturated seepage flow from infinity to a corner, with boundaries kept at constant suction, is obtained for the Kirchhoff potential by the method of separation of variables. ...
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(1989)The question as to the origin of iron-manganese nodules, which are currently the principal type of solid mineral that could be mined in the ocean (with a total reserve of about 1012 tons, has both geological-geochemical ...
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(2003)The paper presents an analytical and numerical study of two perfectly matched layer (PML) formulations for the shallow water equations in terms of the unsplit physical variables. A perturbation method followed by a change ...
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(2004)A sediment core from Lake Pichozero (61°46'; N, 37°25'; E 118m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12 800-9300 ...
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(2002)In areas that are occasionally inundated by floods, it is essential to know the quantity and density of vegetation that can be allowed while avoiding flooding beyond the intended floodplains. An unsteady flow model was ...
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(1990)In modeling any process, we desire to select the experimental data that give the best representation of the original. There have been many theories explaining the thermal conditions in the lithosphere on plates undergoing ...
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(PANGAEA, 2005-06-15)
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(2001)A unique distribution of four homologous series of monomethylalkanes (MMAs) ranging from C23 to C31+ in the extractable organic matter and the hydrous pyrolysate of Permian torbanites has been observed for the first time. ...
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(1988)We found about 50 gold grains in the heavy fraction obtained by dissolving large-volume samples of serpentinized and carbonatized kimberlite from the Mir pipe. Many of them were full of inclusions of other phases. These ...
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(1990)Researchers have found the microfossils of the genus Obruchevella Reitlinger, 1948 to be an extremely interesting group of very old microorganisms. Because of their characteristic helical structure, they are easy to identify ...
Now showing items 16419-16438 of 39066