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Browsing ELibrary by Title
Now showing items 10269-10288 of 21934
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(2002)We report experiments in basalt oversaturated with water to duplicate the nodular ore textures of podiform chromitite ores. In immiscible basalt–water systems saturated with olivine and chromite, olivine will reside in the ...
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(2002)Field measurements of the resuspension of medium/coarse sand by orthogonal wave-currents in approximately 20 m water depth are presented and discussed. Velocity squared-suspended sediment cospectra indicate resuspension ...
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(1999)In order to investigate the effects of melt movement on material transport, dissolution and crystal growth in partially molten rock systems, a new apparatus was designed to move partial melt. Spherical specimens with low ...
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(2005)Room-temperature magnetic techniques are rapidly becoming an important tool for the discrimination and quantification of minerals in a broad range of geological, environmental and extraterrestrial materials. The utility ...
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(2001)Soil hydraulic properties are necessary for many studies of water and solute transport but often cannot be measured because of practical and/or financial constraints. We describe a computer program, rosetta, which implements ...
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(2002)We report the results of thermal convection experiments in a rapidly rotating hemispherical shell with a heterogeneous heat flux at the outer boundary to model the effect of a thermally heterogeneous core-mantle boundary ...
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(2003)The two-dimensional analysis of rotation of rigid ellipsoidal inclusions is not applicable to situations in which either the bulk deformation deviates from plane-strain or one of the principal axes of the inclusion is at ...
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(2001)We used experiments to investigate the behaviour of rigid elliptical cylinders embedded in a viscous fluid of finite thickness, and for very small ratios (S) between shear zone width (z) and the shortest principal axis ...
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(2001)Orogenic gold vein deposits require a particular conjunction of processes to form and be preserved, and their global distribution can be related to broad-scale, evolving tectonic processes throughout Earth history. A ...
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(1988)The rubidium- and strontium-isotope distribution in volcanic rocks of the shoshonite-latite series of Bulgaria has never before been investigated. The Borovitsa volcanotectonic depression studied by us is underlain by rocks ...
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(1989)The Kiya alkalic pluton lies on the western part of the Yenisey Ridge at the center of the Chernorechensk graben. It is confined to a zone of intersecting deep faults with northwest and northeast strikes. For isotopic ...
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(1990)For the eastern part of the region, the view that amphibole-biotite granitoids should be assigned to the Amananskiy complex is not supported clearly enough by petrologic and geochemical criteria or by geochronologic isotope ...
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(1989)There always are considerable difficulties in accurately establishing the genetic relationship between ore deposition and magmatic activity. The ore-bearing igneous complexes of the Northeast are no exception in this ...
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(2001)When developing a physically based mathematical description of hydrological processes over natural watersheds, the modeler faces the requirement of complete spatial specification of the various hydro-geological parameters ...
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(2002)A new method based on an extension to time-area (TA) concept is proposed for rainfall-runoff transformation in watersheds. The method uses time variable isochrones, such that the runoff hydrograph responds well to temporal ...
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(2001)We developed and applied a simple empirical Green function method to study induced microcracks observed during hydraulic fracturing experiments in salt rock. Either unidirectional ruptures on rectangular faults or allround ...
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(2003)A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation in this paper. The fault plane of the source is divided into a number of sub-sources, the whole moment ...
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(1998)We propose a new boundary integral equation method (BIEM) to model the spontaneous propagation of rupture on a planar fault embedded in a homogeneous elastic medium. The BIEM formulation is very compact and fast in ...
Now showing items 10269-10288 of 21934