Advances in our understanding of Earth's thermal evolution and the style of mantle convection rely on robust seismological constraints on lateral variations of density. The largelow-shear-wave velocity provinces (LLSVPs) atop the core-mantle boundary beneath Africa and the Pacific are the largest ...
Three-dimensional density model of the Earth's crust and the upper mantle for the area of Poland. J. Geodyn. 25, 5 - 24.Grabowska, T., Bojdys, G. & Dolnicki, J., 1998. Three-dimensional density model of the Earth's crust and the upper mantle for the area of Poland, J. ...
Understanding effects of non-hydrostatic pressure on phase transitions in minerals relevant to the Earth's mantle is important to translate the observable ... Y Asahara,K Hirose,Y Ohishi,... - 《American Mineralogist》 被引量: 20发表: 2013年 The effect of subducting slabs in global shear wav...
A mineralogical model for density and elasticity of the Earth's mantle [1] We present a thermodynamic model of high-pressure mineralogy that allows the evaluation of phase stability and physical properties for the Earth's mant... AS Piazzoni,G. Steinle‐Neumann,H.‐P. Bunge,... - 《...
On the origin and constitution of the upper part of the earth's mantle The author proves that the Dirac-Gilbert equation serving as a basis for the expansion theory has the consequence that the Earth's mantle must be, excepting the uppermost 200 kilometres, similar in constitution to a magma...
Polar wander, the secular motion of the Earth's rotation axis relative to its surface, has been studied for many years. Dynamical arguments 1–3 show that polar wander can arise from the redistribution of mass in a plastic deformable Earth, the rate depending on both the rate of mass redist...
The imaging of crustal structure is the basis of studying the extension mechanism of the continental margin. Although a large number of crustal-scale 2-D seismic surveys have been carried out on the northern South China Sea, there are still many areas la
Understanding magmatic processes and their evolution in the Earth's interior requires a better knowledge of silicate melts and their physical properties. Among them, density is one of the most important to constrain the residence or ascent time of magma in the upper mantle and crust. However, ...
The formation of the earth's core was due to the density differentiation of the primitive matter of the earth. This differentiation should be in progress at the core-mantle interface in the present epoch. Redistribution of substances of various densities gives rise to large-scale convective ...
upper mantleseismic profilingdensity modelingThe unique deep seismic studies carried out in Russia with the use of nuclear explosions provided the possibility to identify the detailed structure of the Earth's crust, upper mantle, and transition zone to the lower mantle to a depth of 700 km in a...