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Browsing ELibrary by Title
Now showing items 6043-6062 of 21934
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(1997)This paper presents two partial melting inversion methods that permit calculation of the degree of partial melting and source composition for cogenetic melting residues (residual peridotites or clinopyroxenes): the ...
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(2001)It is possible to express the inverse problem for flow in an integral form. The integral formulation affords some insight concerning the recovery of subsurface flow properties. In particular, we find that rapid or high ...
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(2002)A new method is presented for a purely kinematic analysis of relative motion data of crustal deformation. We start by developing a general integral formulation that links the relative motion between two positions to the ...
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(2003)I calculate Fourier-Bessel expansion coefficients for recorded shallow-seismic wavefields using a discrete approximation to the Bessel transformation. This is the first stage of a full-wavefield inversion. The transform ...
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(2003)The problem of inferring subsurface properties from shallow-seismic data is solved by a two-stage scheme that fits the full wavefield by its synthetic counterpart. In a first stage (described in a companion paper) I derive ...
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(2002)Inversion of surface nuclear magnetic resonance (SNMR) provides important information about aquifers, such as their depths, thickness, pore size and water content. Different methods (inverse quadratic, linear programming) ...
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(2004)When studying the crystallization sequence of the ore minerals in some gold-quartz deposits of the Verkhnyaya Indigirka region of Yakutia (Nagornoe, Dvoinoe, Klich, Kontrol'noe, Khangalas, Dirin-Yuryakh, Taryn, Kus-Yuryue, ...
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(1998)The apparent similarity of glacial and periglacial hummocky landscapes often leads to errors in delimiting former glaciated and perennially frozen areas by means of aerial mapping. To avoid the misinterpretation a set of ...
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(2003)This work extends the simple experimental studies initiated by Heilig et al. [J. Hydrol. 244(2001) 9] to study erosion processes inherent to a mechanistic soil erosion model (the Rose model) that were not addressed in ...
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(2001)The impact of long-lasting non-point emissions on groundwater and streamwater in remote watersheds has been studied at numerous sites. In spite of substantially decreasing emissions in the last decade, recovery has not yet ...
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(1998)U-series disequilibria in MORB produce trends of (230Th)/(232Th) as a function of (238U)/(232Th) for given lengths of ridge often defined by first-order segmentation. These trends are most easily explained as mixing between ...
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(2001)There are now many examples of hydrological models that utilise the capabilities of Geographic Information Systems to generate spatially distributed predictions of behaviour. However, the spatial variability of hydrological ...
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(2003)The carbonaceous chondrites contain significant amounts of carbon- and nitrogen-bearing components, the most abundant of which is organic matter. Stepped combustion data of whole rock and HF/HCl residues of carbonaceous ...
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(2004)A wideband HF simulator has been constructed that is based on a detailed physical model. It can generate an output giving a time realization of the HF wideband channel for any HF carrier frequency and bandwidth and for any ...
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(2001)Observed pillar failure could not be explained by comparing pillar strength with stresses on the pillar induced by mining activities. Instead, the effects of the combined stress history of strata and pillar on the deformational ...
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(2001)The rock mass on quarry and pit wall surfaces is usually fractured during production blasting. Quantitative investigations of the fractured zones are needed for stabilization of the rock walls. In this study, the principle ...
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(1999)The conditions of the performed experiments were as follows. A three-component receiver was installed in a thermostatic pavilion of the seismological station "Novosibirsk". A vibrator (force amplitude 50-100 tons) was ...
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(1989)The paper reports on a study to incorporate holographic methods into actual observation of hydrothermal crystals genesis. Real time visualization of the course of an experiment in an autoclave with optical windows was ...
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(2005)Deformation assisted by transport in aqueous solutions is important for the rheology of earth materials, and models commonly used to describe deformation by dissolution-precipitation creep assume a steady state process in ...
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(1989)Analysis of rock deformation is one of the central problems of theoretical and applied geology and geophysics. The stress states of rocks in nature are well modeled by experiments in high-pressure chambers on rock specimens ...
Now showing items 6043-6062 of 21934