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Browsing by Title
Now showing items 16085-16104 of 39126
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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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(PANGAEA, 2018-06-18)Most of the world's permafrost is located in the Arctic, where its frozen organic carbon con-tent makes it a potentially important influence on the global climate system. The Arctic climate appears to be changing more ...
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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 ...
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(1988)Electromagnetic emission from rocks is useful in prediction of earthquake and rock bursts. We investigated electromagnetic (EME) and acoustic emission (AE) on a concrete model consisting of three blocks. Based on our ...
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(2002)We conducted a plane strain finite element analysis of topographic loading on a 40-km-thick, compositionally homogeneous, wet olivine oceanic lithosphere. The rheological model was elastoviscoplastic (EVP) and accommodated ...
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(2001)Time-dependent processes are the most important factor contributing to diversity of the soil and weathering mantle (SWM) in the humid tropics and subtropics. Two models of SWM self-development in time are proposed and ...
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(1999)Mantled inclusions, commonly encountered in mylonites, sometimes represent the only recorders of the deformation history. Understanding the influence of rheology on the structure of mantled inclusion is important for its ...
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(2003)In earlier experiments on steady infiltration into crust-topped soil columns an additional resistance was observed in the vicinity of the boundary between the crust and the soil below it. I have performed laboratory tests ...
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(1998)High-resolution seismic tomography indicates that lithospheric plates penetrate the 670 km discontinuity. A common view holds that the isotopic composition of He and Ar is incompatible with geophysical evidence because (a) ...
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(2001)The surface speciation of oxalate at the water-boehmite (γ-AlOOH) interface during adsorption and dissolution reactions was studied by means of attenuated total reflectance infrared spectroscopy. The structural interpretations ...
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(2003)Recent geodynamic research has shown that convective flow in the mantle may have an important role in the development of long-wavelength surface topography. This flow-induced ‘dynamic topography’ is usually derived from ...
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(2003)A time-domain, spectral finite-element approach is presented for computing the electromagnetic induction response of a 2-D heterogeneous conducting sphere to transient external current excitation. This method is appropriate ...
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(2002)Time-resolved luminescence spectra of natural and synthetic hydrous volcanic glasses with different colors and different Fe, Mn, and H2O content were measured, and the implications for the glass structure are discussed. ...
Now showing items 16085-16104 of 39126