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Browsing ELibrary by Title
Now showing items 13819-13838 of 21934
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(1999)Comparisons of I-Xe and Pb-Pb relative ages are made for phosphate and feldspar separates from 12 different meteorites. In all cases where I-Xe ages can be measured in phosphate, I-Xe and Pb-Pb chronometers agree within ...
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(2004)The dynamics of cosmogenic 10Be contents in the BDP-96-1 (100 to 200 m) and BDP-98-2 (200 to 600 m) cores was used to test published magnetostratigraphic scales for the Miocene section and to time the core base. Only one ...
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(2000)A structural model is proposed for illite-smectite (I-S) from diagenetic environments which accounts for the presence of three different layer types which are defined as follows: montmorillonite (low-charge, octahedrally ...
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(2003)This paper reports from investigations on the robustness of estimated rates of intraplate motion from the continuous GPS project BIFROST (Baseline Inferences from Fennoscandian Rebound Observations, Sealevel and Tectonics). ...
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(1992)Three vertical profiles of dissolved organic carbon (DOC) in the North Pacific, as determined by the high-temperature catalytic oxidation (HTCO) method, are reported, together with the results of some analytical studies. ...
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(1987)The hydrocarbon gases and the distribution of organic matter in the rocks were studied in five stratigraphic intervals: Apsheronian, Apchagylian, the productive sequence (Middle Pliocene), Sarmatian, and Upper Cretaceous, ...
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(2003)Studies based on repeat levelling performed in the city of Tallinn show local earth surface deformations in the area of ancient valleys buried under quaternary sediments. Until 1964, the highest rate of sinking (up to 30 ...
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VERTICAL RUGGEDNESS OF THE RELIEF AND PROSPECTS OF OIL AND GAS POTENTIAL IN THE WESTERN BARENTS SEA (2003)Морфоструктурное изучение западной части Баренцева моря совместно с анализом глубин и вертикальной расчлененности рельефа позволили выделить пять типов новейших движений морфоструктур и четыре типа пограничных зон по ...
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(1997)The effect of temperature and viscosity on the kinetics of bubble growth was measured for a natural water-rich rhyolite melt. The change in volume of a natural crystal-poor calc-alkaline rhyolitic obsidian with an initial ...
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(1990)The upward migration of hydrocarbon gases from pay strata in seismically active oil and gas regions apparently is a penetrative process that produces maximum saturation of the sorptive capacity of the rocks overlying the ...
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(2003)The structural behavior of β-eucryptite (LiAlSiO4) has been investigated using infrared (IR) spectroscopy over a temperature range of 20 to 900 K and FT-Raman spectroscopy at room temperature. IR reflectance measurements ...
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(1998)The functional group chemistry and coordination of AsO43--sorption complexes in ettringite [Ca6Al2(SO4)3(OH)12.26H2O] were evaluated as a function of sorption type (adsorption, coprecipitation) and pH using Raman and Fourier ...
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(2002)Infrared (IR) and Raman spectra of leonite-type minerals, K2Me(SO4)(2).4H(2)O (Me = Mg, Mn, Fe), confirm a succession of structural phase transitions between 277 and 120 K. Because the orientation and dynamic behaviour of ...
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(2004)Infrared reflectance, thin-film absorbance, and polarized Raman spectra were acquired from ~100 to ~4000 cm−1 from polycrystalline garnets along the pyrope (Py = Mg3Al2Si3O12)-majorite [Mj = Mg3(MgSi)Si3O12 ] join. We ...
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(1999)The vibrational spectrum of the CaAl2B2O7 was investigated. It was shown that the vibrations of the BO3 groups are present in the region of 1400-600 cm-1, and the bands at 519 nm-1 may originate from the AlO6 vibration. ...
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(2000)This paper presents a concept of vibroseismic monitoring for earthquake-prone areas and the testing results of the estimation of relative variations in seismic wave velocities caused by earth tides at distances of 356 and ...
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(1998)The number of victims from volcanism and the primary cause(s) of death reported in the literature show considerable uncertainty. We present the results of investigations carried out either in contemporary accounts or in ...
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(2001)We present a method for the computation of time-dependent geodetic and geophysical signatures (deformation, potential and gravity changes) due to magmatic intrusions in a layered viscoelastic-gravitational medium. This ...
Now showing items 13819-13838 of 21934