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Browsing ELibrary by Title
Now showing items 3254-3273 of 21821
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(2001)We analyzed a system of complex joints in thick dolomite layers that are exposed within the western margins of the Dead Sea basin. These joints display two dominant features: 'tree-like' branching and a gradual increase ...
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(2001)The source terms that are meaningful in dynamic poroelasticity are those exciting the centre-of-mass field and the internal field. These fields are the sum of the mass weighted motion and the difference motion of the solid ...
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(2004)A debate has raged over whether fixed material and geometrical heterogeneities, or alternatively dynamic stress heterogeneities, arising through frictional instabilities dominate earthquake complexity. It may also be that ...
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(1999)We have studied the dynamic interactions of mineral dissolution, cation surface adsorption, and precipitation in aqueous slurries initially containing kaolinite and millimolar quantities of cobalt(II) in 0.1 molar NaNO3 ...
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(2004)Since the exhaustive work by Adams and Coker at the Carnegie Institute in the early 1900s and the work of F. Birch's group at Harvard University conducted in the 1940s–1950s, it has been well documented that the quasi-static ...
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(2002)Hydrodynamic mingling of magma and liquefied sediments is generally accepted to represent the key process in the formation of some peperites. Experimental studies on simulant liquids and calculations based on recent empirical ...
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(1998)When radial flow passes through a mantle phase boundary, the interplay of advection and diffusion of latent heat creates dynamic topography of this boundary, which means a deflection that is related to the sense and magnitude ...
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(2004)The extension of the lithosphere, controlling the development of rifted basins, is driven by a combination of plate-boundary forces, frictional forces exerted on the base of the lithosphere by the convecting asthenosphere ...
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(2002)The complex interaction between CrIIIaq and manganite (γ-MnOOH) was systematically studied at room temperature over a pH range of 3 to 6, and within a concentration range of 10-4 to 10-2 M CrOH2+aq. Solution compositional ...
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(1989)Various phenomena accompanying the passage of seismic signals through real media can be explained by the theory of the block structure and jointing of the medium. This theory explains the fact that the range of frequencies ...
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(2001)Recrystallization processes in plagioclase porpyroclasts were studied in samples from an anorthositic gabbro of the Jotun Complex, South Norwegian Caledonides. The deformation took place at a temperature of approximately ...
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(2001)The backstripping method that is widely used in basin analysis sometimes fails for salt-bearing basins because the highly mobile and buoyant salt deforms its sedimentary overburden. We present a numerical approach for 2-D ...
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(2002)Contaminant transport by groundwater in a sloping aquifer is considered in the case when contaminant plume has a salinity (and density) different from that of the groundwater, and is heat generating. Forced convection is ...
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DYNAMIC WEATHERING MODEL: CONSTRAINTS REQUIRED BY COUPLED DISSOLUTION AND PSEUDOMORPHIC REPLACEMENT (1995)In lateritic weathering parent mineral grains are partly replaced by oxides and oxyhydroxides and partly congruently dissolved. The replacement of a parent grain by an oxide at a site results from the physical coupling of ...
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(2001)Recent field and laboratory studies indicate that the viscosity of the middle and lower continental crust may be 1018 Pa s or less in regions of high heat flow. Such strikingly low viscosities must strongly facilitate ...
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(2004)Using a regional upper-mantle model with an unprecedented spatial resolution of ∼100 m, we have investigated at multiple resolutions the character of incipient magma chambers forming under oceanic arcs. The magma chambers ...
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(2004)A possible explanation of variations in the spatial localization of stresses and earthquakes related to them is given. It is assumed that the pressure gradient between the bottom and upper surface, tensile stresses and ...
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(2004)Decrease of the velocity of a pressure wave in magma by the presence of bubbles is regarded as a fundamental process in seismoacoustic activities of a volcano. However, we show that the large viscosity of magma (≥105 Pa ...
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(2005)An important aspect of continental rifting is the progressive variation of deformation style along the rift axis during rift propagation. In regions of rift propagation, specifically transition zones from continental rifting ...
Now showing items 3254-3273 of 21821