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Now showing items 16065-16084 of 39126
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(2004)A new regional S-velocity study resolving the Eurasia–Africa plate boundary region from the Azores to the eastern Mediterranean Sea is presented. The resolution of existing velocity models has been complemented by using ...
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(1987)The orogenic process in Central Asia is difficult to understand without an understanding of the structure of the lithosphere and asthenosphere in this region. A considerable amount of information on structure at depth is ...
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(2014)Abstract We test two methods of 3-D acoustic source localization on volcanic explosions and small-scale jetting events at Karymsky Volcano, Kamchatka, Russia. Recent infrasound studies have provided evidence that volcanic ...
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(2004)This is an attempt to study 3-D wave propagation in a general anisotropic poroelastic medium. Biot's theory is used to derive a modified Christoffel equation for the propagation of plane harmonic waves in an anisotropic ...
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(2004)We propose a new index of magnetic activity during three-hour intervals. The new index E is based on the energy spectra. As a result of the fact that energy is additive, we can use information from both horizontal components ...
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(2003)Laboratory observations regarding the limit conditions for particle entrainment into suspension are presented. A high-speed video system was used to investigate conditions for the entrainment of sediment particles and glass ...
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(2003)Siderophores are low-molecular weight organic molecules secreted by plants and micro-organisms in response to Fe stress. With stability constants commonly exceeding 1030, siderophores are considered to have higher affinities ...
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(1996)The drop solution calorimetric method was used to determine the enthalpy of solution of rutile (ΔHsol) in silicate melts. High-temperature (1760 K) in situ calorimetric data show that ΔHsol is a strong function of melt ...
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(Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд) (Род-Таун), 2003)Long-term observations of the telluric potential difference on the measuring lines (L≈100 m) at the Verkhnyaya Paratunka (VP) and Tundrovyi sites on the Kamchatka Peninsula were used to study the tidal response of the ...
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TIDAL FLUCTUATIONS IN A LEAKY CONFINED AQUIFER: LOCALISED EFFECTS OF AN OVERLYING PHREATIC AQUIFER (2002)Damping of tidal head fluctuations in a leaky confined coastal aquifer is enhanced by leakage into an overlying phreatic aquifer. We show that the phreatic aquifer is, however, resistant to the leakage flow and in particular, ...
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(1998)Fossils and tidal deposits as well as the possibility to compute values of the lunar tidal torque for different geological epochs allow us to model the variations in time of the Earth's figure, assuming that the latter ...
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(2002)This paper presents an analytical solution to describe tidal groundwater level fluctuations in a coastal leaky aquifer system bounded by water-land boundaries that form a right angle (referred to as L-shaped coastlines). ...
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(2003)Mean groundwater levels of a multi-layered coastal leaky aquifer system are considered. The system consists of an unconfined aquifer, a confined aquifer and a semi-permeable layer between them. Both exact asymptotic solutions ...
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(2003)Newly available geological and geophysical data tighten the Proterozoic connection between the rifted margins of the northern Siberian craton and western Laurentia, and permit a Siberia-Laurentia-Australia troika, with ...
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(2004)Application of Tikhonov's technique, using input errors for the parameter of regularization estimation, enhances the accuracy and stability of the reconstruction of a source time function (STF) by the empirical Green ...
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(PANGAEA, 2000-11-20)
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(2003)Tillmannsite, (Ag3Hg)(V,As)O4, was found in the old copper mines of Roua (Alpes-Maritimes, France), associated with pecoraite, vésigniéite, olivenite, kolfanite, janggunite, chlorargyrite, cuprite, native copper, native ...
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(2004)The structural changes of CaSnO3, a GdFeO3-type perovskite, have been investigated to 7 GPa in a diamond-anvil cell at room temperature using single-crystal X-ray diffraction. Significant changes are observed in both the ...
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(2002)Predominantly terrigenous sedimentary successions of mainly Neoproterozoic age characterise the northeastern margin of Baltica, and extend over a strike distance of 1800 km from the Timans in Northwest Russia to the eastern ...
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(2003)Following a change in the rate of convergence in a collision zone, the rate of rock uplift also changes. This results in a change in relief, and hence in erosion rate. Thus, over time, the erosion rate tends to adjust to ...
Now showing items 16065-16084 of 39126