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Browsing ELibrary by Title
Now showing items 13393-13412 of 22191
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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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(2006)Tidal gravity observations had been performed during more than 2 years (April 2001-September 2003) in Eastern Siberia with the LCR402. Simultaneously the gravimeter LCR1006 was recording in Chizé Observatory, not far from ...
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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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(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 ...
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(2000)The time evolution of negative buoyancy of a subducting slab is modelled from the beginning of subduction under various kinematic conditions (dip angle and subduction velocity). The calculations take into account the thermal ...
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(2003)Harmonic spectral peaks are observed in the tremor spectra of many different volcanoes, and in some cases these spectral lines have been seen to change with time. This has also been observed for the tremor at the Soufriere ...
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(2004)In the field of geomagnetism a number of studies have been devoted to the investigation of turbulence and in- termittency in the outer core fluid motions. Here, in order to obtain information on such phenomena we study the ...
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(2001)Time of flight secondary ion mass spectrometry (ToFSIMS) has been applied to a number of bacterial hopanoids in an attempt to characterise these geologically important molecules in situ by a surface sensitive technique. ...
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(2004)The development of improved analytical techniques has facilitated the application of short-lived isotopes to the study of magmatic processes, and resulted in a renewed interest in a number of other chronometers. Two ...
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(1999)Time series analysis is being applied to the following geological data: tree rings, Sr isotope data for Phanerozoic seawater, and the El Nino phenomenon. First the data are treated by ARIMA models that enable, for stationary ...
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(1988)We report on the time-dependent variations in the water-gas system of the Dzhety-Oguz mineral springs, located in the large Terskey fault zone, as well as on response of some properties of that system to the M = 6.3 Tyupsk ...
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(2000)The dependence of earth tide parameters on the elastic properties of rocks suggests the use of these parameters for earthquake prediction. Observations conducted in the epicentral zones of some large earthquakes revealed ...
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(2004)The Upper Permian recorded the greatest mass extinction and the most dramatic environmental changes in geologic history. Understanding the process of these events has long been handicapped by the uncertainty of their ...
Now showing items 13393-13412 of 22191