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Browsing ELibrary by Title
Now showing items 5212-5231 of 21934
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(2006)GRA 95209 may provide our best opportunity to date to understand the earliest stages of core formation in asteroidal bodies. This lodranite preserves a physically, chemically, and mineralogically complex set of metal-sulfide ...
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(2002)We study the Rayleigh–Taylor instability of a structure consisting of a buoyant layer of viscous fluid overlain by a dense perfectly plastic layer (which is represented by a strongly non-Newtonian fluid with the power-law ...
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(2002)Integral expressions are derived for the vertical component of gravitational attraction arising from vertical circular cylinders and horizontal circular disks with radial variation of density. The expressions contain a ...
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(2002)A general integral expression is formulated for the gravitational attraction due to any solid of revolution based on the attraction of vertical, semi-infinite, circular, cylindrical shells. The expression accommodates ...
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(2001)All geodynamic processes should be explained by the fundamental principle of the strive for gravitational equilibrium. [Ann. Soc. Geol. Belge Bull. 64 (1965) 95-123]The concept of gravitational collapse has fundamentally ...
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(1990)In the present paper we discuss the compaction of rocks in terms of a model of macroscopically uniform compacting deformation of porous rocks, i.e., unilateral compression produced by the weight of a rock body. The associated ...
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(2002)Models for the evolution of the Moon must explain a number of important characteristics of its magmatic history. Primary among them is the emplacement of mare basalts primarily on one side of the Moon, and in a region of ...
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(2003)Initial equations are obtained, similarity criteria are estimated and a project of simulation experiment is proposed for the gravitational differentiation of liquid cores of planets and natural satellites. It is assumed ...
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(1985)One of the current models of mantle convection assumes that the circulation takes place in two superimposed layers separated by the 700-km discontinuity. The present study reports two-dimensional numerical experiments ...
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(1990)There exist several gravity and mechanical models of the continental crust that are useful in the study of the interaction between two lithospheric plates. We shall consider a three-dimensional model of the mechanical ...
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(1990)Bouguer gravity anomalies over the Tien Shan and Pamir are large and negative, and therefore consistent with crustal thickening beneath both mountain ranges. Gravity anomalies over the western Tien Shan are within about ...
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(1988)Vertical zoning in massive pyritic copper-zinc sulfide occurrences in the Urals, as expressed in the replacement from the bottom up of pyrite (sulfur) ore by chalcopyrite-pyrite (copper), sphalerite-chalcopyrite-pyrite ...
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(2002)Meteoroids captured by the Earth into orbits with perigees larger than the Earth's radius can graze the atmosphere and travel a long distance, from one to several thousand kilometers, at low altitudes. The dynamics of large ...
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(2004)Great earthquakes, the few largest earthquakes that account for most of the Earth's seismic energy release, have occurred at only a few subduction zones around the world. Strong locking, or 'seismic coupling', of the ...
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(1988)Geologists have repeatedly formulated ideas concerning great renewals of short duration in the Precambrian history of the Earth, i.e., colossal structural reorganizations, collapses, extensive inversions and changes in ...
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(2003)A new formulation of the Green element method (GEM), based on the transient Green's function of the diffusion differential operator, is herein used to solve the problem of transient flow in multiply layered aquifers that ...
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(2004)We examine the canonical source/Green's function separation problem in the context of teleseismic P wave scattering from receiver-side crust and upper mantle structure. Conventional “receiver function” analysis affords a ...
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(2004)We model the inner core by an alloy of iron and 8 per cent sulphur or silicon and the outer core by the same mix with an additional 8 per cent oxygen. This composition matches the densities of seismic model, Preliminary ...
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(1998)This paper presents the first results of an investigation of the ground-surface ruptures caused by a magnitude 7.0 earthquake and eruptions in the Karymsky volcanic center over the period January 1-2, 1996. The propagation ...
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(1998)Quantitative characteristics are provided for horizontal and vertical ground-surface deformation on Karymsky and Akademii Nauk volcanoes measured after a large (M = 7.0) earthquake and a swarm of smaller events in the ...
Now showing items 5212-5231 of 21934