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Browsing ELibrary by Title
Now showing items 2734-2753 of 21821
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(2003)The KaraBogazGol (KBG) water level oscillations were reconstructed in the last 200 years using the geochemical evolution of the uppermost meter of its sedimentary infill. High-resolution studies of the mineralogical ...
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(1988)For the first time for eastern Yakutia, encompassing the Mesozoides of the Verkhoyansk clastic complex in the Baraya anticlinorium (BA), the Sartang synclinorium (SS) and the South Verkhoyansk synclinorium (SVS), the ...
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(2003)The cyclic growth of Heliolitoidea corals is expressed in periodic changes in their morphometric characteristics at the transition from the light zone to the dark zone of the cycle. Genera and higher taxa experience ...
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(2003)Combination of sedimentological and cyclostratigraphic methods is used to depict for the first time the relative sea-level fluctuations characterizing a series of sections of Upper Paleozoic terrigenous deposits in the ...
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(2004)D'Orbigny is the sixth and by far the largest angrite known. Its bulk chemical and mineral chemical compositions, rare gas abundances and oxygen and rare gas isotope compositions fit the compositional ranges known from ...
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(2004)Models of development of lattice preferred orientation (LPO) of crystals aggregates in convective flow are necessary to interpret the anisotropic seismic signature of the Earth's upper mantle. For that purpose we previously ...
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(1995)We report measurements of the equilibrium D/H fractionation factor (α) between methane and hydrogen in the temperature range 200-500°C. Isotopic equilibrium was achieved by recycling the gases over a Ni-Thoria catalyst, ...
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(1999)Immature source rock chips containing different types of kerogen (I, II, IIS, III) were artificially matured in isotopically distinct waters by hydrous pyrolysis and by pyrolysis in supercritical water. Converging isotopic ...
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(1999)Long-continued observations of water-level fluctuations and air pressure changes in the southern Baikal area were compared with the Baikal seismicity to reveal periods when the fluctuations had much greater amplitudes prior ...
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(2001)The family Loeblichiidae Cummings already emended by Rauser-Chernousova et al. (1996), is revised and subdivided into three subfamilies: Loeblichiinae Cummings emend., Spinoendothyrinae subfam. nov., Dainellinae subfam. ...
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(1988)Seismologists usually describe the change in the amplitude of seismic waves with distance R in terms of a power equation such as A =B/Rn. This equation is often used to analyze experimental results on underground explosions. ...
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(2003)A petrographic and scanning electron microscopic study of the four CO3 chondrites Kainsaz, Ornans, Lancé, and Warrenton reveals for the first time that dark inclusions (DIs) occur in all the meteorites. DIs are mostly ...
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(2002)Mokoia is a CV3 chondrite that contains abundant phyllosilicate mineralization. We present a detailed petrographic and scanning electron microscopic study of 24 dark inclusions (DIs) that we found in Mokoia. The overall ...
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(2002)Inverse theory concerns the problem of making inferences about physical systems from indirect noisy measurements. Information about the errors in the observations is essential to solve any inverse problem, otherwise it is ...
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(2000)The standard chemical potentials μso of aqueous solutes over a wide range of temperatures and pressures are needed to calculate phase and chemical equilibria in hydrothermal systems. The standard derivative thermodynamic ...
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(2000)We present a summary of the methodology for probabilistic fault displacement hazard and discuss the types of data needed for the analysis. The methodology is based on the widely used formulation for probabilistic assessment ...
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(1997)A data processing and storage system for records of wave disturbances in the atmosphere generated by volcanic eruptions is described. The system was developed using acoustic signals recorded during eruptions of Kamchatkan ...
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(2000)Alteration of submarine basalts compromises geochronology using conventional K/Ar and 40Ar/39Ar techniques. To help overcome these problems, we re-evaluated the potential of groundmass dating techniques. Incremental heating ...
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(2003)The long-term rate of racemization for amino acids preserved in fossil ostracode shells was determined by using independently dated sediment cores from five deep lakes. The racemization rates for aspartic and glutamic acids ...
Now showing items 2734-2753 of 21821