M. (1973a), Convection and the large-scale circulation of the mantle, J. Geophys. Res., 78, 8735 - 8745.Richter FM (1973) Convection and the large scale circulation of the mantle. Journal of Geophysical Research 74: 8735-8745.Richter, F., 1973. Convection and the large-scale ...
The Earth began to accrete some 4.5 billion years ago by the accumulation of impacting planetesimals of various sizes. The impacting bodies converted their gravitational and kinetic energies into heat which probably produced initially a large-scale melti
We have assumed that convection currents in the Earth’s mantle are the motive force for the lithosphere. The geological literature has often invoked such currents, each time endowing them with the peculiar properties required for the problem at hand, wi
Bougault, H.Cande, S. C.Schilling, J.-G.Turcotte, D. L.Olson, P.Nature Publishing Group UKNatureH. Bougault, S.C. Cande, J.G. Schilling, D.L Turcotte and P. Olson, Mantle heterogeneity and convection, Nature 305, 278-279, 1983....
Recent laboratory work [1] suggests that the thermal expansivity α of the mantle decreases strongly with pressure. α determines the buoyancy of plumes and the rate at which plumes lose their thermal signature as they rise, and so may be expected to have a strong influence on the temperature...
The stress field generated by mantle flows, except in the Tian Shan region, also coincide with the stress field of recent tectonic movement in China. The Tarim and Junggar basins are formed by tensional stresses due to divergent mantle convection currents under northwest China. The formation of ...
Pollack, Mantle devolatilization and convection: implications for the thermal history of the earth, Geophys. Res. Lett. 14, 737-740, 1987.Jackson, M.J. and Pollack, H.N., 1987. Mantle devolatilization and convection: implications for the thermal history of the Earth. Geophys. Res. Lett., ...
出版社: Evolution of the Earth 摘要: A relationship between the parameters of the mantle based on two-dimensional convection is considered. The information available on heat flows and temperatures at depths of 800 km and 2900 km provides estimates of the mean viscosity, approximately 10 to the ...
摘要: Summary This chapter contains sections titled: Introduction Small-Scale Convection Introduction to the Effects of Melting on Mantle Flow Melting and Small-Scale Convection Discussion Appendix A: The Mathematical Model关键词: Volcanism—Congresses Earth—Mantle—Congresses Mid‐ocean ridges—Congresses ...
THE study of pal忙omagnetism has necessitated the contemplation of continental drift and the most plausible explanation appears to be convection in the mantle 1,2 . It has been assumed that the convection is thermal, being maintained by heat from the core. The purpose of this communication is ...