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Browsing ELibrary by Title
Now showing items 7594-7613 of 21879
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(2001)We consider the time evolution of seismic primary arrivals in single realizations of randomly heterogeneous media. Using the Rytov approximation, we construct the Green's function of an initially plane wave propagating in ...
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(2003)A new element of the World Climate Research Programme (WCRP) has been inaugurated addressing the role of the cryosphere in climate. A Science and Co-ordination Plan has been issued for the Climate and Cryosphere (CliC) ...
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(2003)Outlines and parameters of glaciers formed during the Pleistocene Last Glacial maximum (MIS 2) have been reconstructed based on remote sensing and field investigation of the glaciology and geomorphology of a 3293 km2 key ...
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(2001)Calculations of parameters of movement of rock blocks during large-scale dynamic action have been performed. Results of the calculations have been presented. Evaluations made according to analytic models and experimental ...
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(2003)Flow and transport in soil is governed by the binary geometry of solid and void. This may be described at typical length scales of some millimeters, and even less. In contrast, the problems which are supposed to be solved ...
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(2004)One of the most widely used methods to estimate magmatic oxygen fugacity involves the use of empirical equations relating fO2 to the iron redox state in quenched silicate liquids; however none of the equations have been ...
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(2004)The South Caspian sedimentary basin is a unique area with thick Mesozoic-Cenozoic sediments (up to 30–32 km) characterized by an extremely high fluid generation potential. The large amount of active mud volcanoes and the ...
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(2006)In this paper, an effort is made to consider mud volcanism of northwestern Caucasus from the most complete data including data on the abutting seas water areas and available data on ancient mud volcanoes. A number of new ...
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MUD VOLCANOES AND MICROSEEPAGE: THE FORGOTTEN GEOPHYSICAL COMPONENTS OF ATMOSPHERIC METHANE BUDGET (2005)Mud volcanoes and microseepage are two important natural sources of atmospheric methane, controlled by neoritectonics and seismicity. Petroleum and gas reservoirs are the deep sources, and faults and fractured rocks serve ...
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(2001)The general description of a mud volcano is an injection or eruption of mud fluids from a highly pressurized zone to a shallower, lower-pressure zone or eruption to the surface. These features are often associated with gas ...
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(2002)This paper discusses the nature of the phenomenon of “mud volcanism” with respect to degassing of deeply buried sediments. Mud volcanoes are defined as geological structures and their main elements are described. Based on ...
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(2004)Mud-bottom hollows are depressions on the bog surface where Sphagnum mosses have died and peat accumulation is retarded or even replaced with loss by oxidation. Results of measurements carried out at MAnnikjArve Bog, central ...
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(2003)One of the outstanding problems of palaeoclimate reconstruction from physico-chemical properties of terrigenous deep-sea sediments stems from the fact that most basin fills are mixtures of sediment populations derived from ...
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(2001)A detailed characterisation of the subsurface using high-resolution multi-component seismic data requires additional processing. We adapted a frequency-domain wavefield separation method and applied it in an iterative way ...
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(2002)The multi-criteria calibration procedure MOCOM-UA was used to evaluate the validity of a physically based precipitation-runoff model by forcing the model to simulate several observed system responses simultaneously. The ...
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(2001)In this paper we present and discuss the frequency-dependent behaviour of the acoustic characteristics of methane hydrate-bearing sediments in Lake Baikal, Siberia. Five different types of seismic sources (airgun-array, ...
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(1997)For a general use of the frequency-magnitude (FM) relation in seismic risk assessment, we formulate a multi-scale approach that relies on the hypothesis that only the ensemble of events that are geometrically small, compared ...
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(2005)The coordination environment of Fe(II) has been examined in seven anhydrous ferrosilicate glasses at 298 K and 1 bar using 57Fe Mössbauer, Fe K-edge X-ray near edge structure (XANES), and extended X-ray absorption fine ...
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(2004)The primary garnet (pyrope-almandine)-omphacite (Cpx 1, 6.5–7wt% Na2O)-sulfide (Fe-Ni-Co mss) assemblage of the two diamondiferous eclogite xenoliths studied (U33/1 and UX/1) experienced two mantle metasomatic events. The ...
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(2002)Pb isotope analyses using multicollector magnetic sector inductively coupled plasma mass spectrometers (ICP-MS) may potentially be corrected for mass bias, a major source of uncertainty, by assuming that the mass bias for ...
Now showing items 7594-7613 of 21879