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Browsing Геология России by Title
Now showing items 189-208 of 39124
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(1999)In terms of their chemistry, most of the Early Miocene volcanic rocks of Sakhalin can be referred to a tholeiitic series and merely a small amount, to a calc-alkalic series. Early Miocene volcanic eruptions occurred mainly ...
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(2005)Fibrous zeolites (FZ) are the only group of natural zeolites that have been well investigated under pressure. The high-pressure (HP) behaviour of several FZ has been studied by means of in situ HP-single-crystal/powder ...
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(2000)In this study the chemical structure of algaenans isolated from the freshwater algae Tetraedron minimum, Pediastrum boryanum and Botryococcus braunii are compared with their fossil counterparts by means of RuO4 oxidation. ...
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(2006)Most of the petrologic data available for Type B inclusions comes from Type B1s. Relatively little comes from the B2s, and there has not been a systematic comparison of the properties of their two most abundant minerals. ...
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(2002)Opaque minerals in the Qingzhen (EH3) and MacAlpine Hills (MAC) 88136 (EL3) enstatite chondrites were studied and compared with other EH and EL chondrites. All opaque minerals usually occur in multi-sulfide-metal clasts ...
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(2006)Organic ligands affect the sorption and mobility of radionuclides in soils. Batch desorption experiments on goethite particles reveal the extent of uranyl desorption and hence bioavailability with different organic acids. ...
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(1996)Linear potential theory was used for a comparative study of tsunami excitation efficiency by piston-type and traveling-wave bottom motion. Wave energy was determined as a function of the size of excitation area, basin ...
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(2004)Two automatic ways of estimating the regularization parameter in underdetermined, minimum-structure-type solutions to non-linear inverse problems are compared: the generalized cross-validation and L-curve criteria. Both ...
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(2003)Velocity and water transport through the Windward Passage is estimated from a review of prior investigations and a new analysis of mooring observations conducted on February, 18, 1965 and November, 19-23, 1970 in the former ...
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(PANGAEA, 2018-06-07)The long-chain diol index (LDI) is a new organic sea surface temperature (SST) proxy based on the distribution of long-chain diols. It has been applied in several environments but not yet in subpolar regions. Here, we ...
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(1999)Short-period regional P/S amplitude ratios hold much promise for dis-criminating low-magnitude explosions from earthquakes in a Comprehensive Test Ban Treaty (CTBT) monitoring context. However, propagation path effects ...
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(1996)Long-term resistance to displacement along frozen surfaces is an important characteristic of the strength of frozen ground. A knowledge of the value of this characteristic is necessary when calculating the load-carrying ...
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(2004)The article presents experimentally determined physical and mechanical properties and elastic anisotropy of three core samples of metamorphic rocks (gneisses), which were drilled out and lifted from depths of 6849 – 8411 ...
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(2002)The procrystal calculation of the electron density is a very rapid procedure that offers a quick way to analyze various bonding properties of a crystal. This study explores the extent to which the positions, number, and ...
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(2002)Many processes in the Earth's crust are controlled by the chemical and physical interactions between fluids and geological media where the lattice is usually characterised by a heterogeneous permeability, intrinsic rock ...
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(1995)Hydrous pyrolysis, using progressive heating from 150 to 365°C, is used to study the generation and isotopic composition of hydrocarbon gases and carbon dioxide. Different source rocks from the Draupne, Heather, Dunlin and ...
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(2000)The effects of ion irradiation in the ABO4-type compounds were compared by performing experiments on four materials that include the most common crystal structures (monazite vs. zircon) and chemical compositions (phosphates ...
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(2003)Large-eddy simulations provide a strategy for modelling large-scale flow when the smallest scales are not resolved. The approach relies on spatial filtering to eliminate scales smaller than the grid spacing, but requires ...
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(1997)Continual improvements in the precision of isotope ratio measurements made by ion microprobe, and the attempt to resolve smaller isotopic differences using this technique means that it is increasingly important to demonstrate ...
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(2003)Further knowledge as to the nature of the structure of a terrestrial sample of troilite, FeS [stoichiometric iron(II) sulfide] is revealed by a combination of XPS studies and dissolution studies in acid. The XPS analysis ...
Now showing items 189-208 of 39124