& Rigden, S. M. 1998 Composition and temperature of the Earth's mantle: seismological models interpreted through experimental studies of mantle materials. In The Earth's mantle: composition, structure and evolution (ed. I. Jackson), pp. 405-460. New York: Cambridge ...
Seismological images of the Earth's mantle reveal three distinct changes in velocity structure, at depths of 410, 660 and 2,700 km. The first two are best explained by mineral phase transformations, whereas the third—the D″ layer—probably reflects
The existence of Archaean komatiites with eruption temperatures greater than 1650掳C requires that the mantle be vertically differentiated by the time of k... EG Nisbet,D Walker - 《Earth & Planetary Science Letters》 被引量: 98发表: 1982年 Role of a thin, komatiite-rich oceanic crust in...
THE mantle ‘hot spot’ or ‘plume’ hypothesis of Wilson1and Morgan2has been used to explain linear chains of volcanic islands and seamounts as well as aseismic ridges. These features of the ocean basins were presumably caused by the motion of lithospheric plates over mantle plumes, since it ...
A. Kronrod, “Determining the Temperature of the Earth’s Continental Upper Mantle from Geochemical and Seismic Data,” Geochem. Int. 44 , 232–248 (2006).Kuskov O.L., Kronrod V.A.. Determining the Temperature of the Earth's Continental Upper Mantle from Geochemical and Seismic Data // ...
ies are too large to discount such a boundary layer with certainty, but agreement of our new temperature profile with temperatures deduced from equation of state studies on the lower mantle and core encourages the view that we are converging to a well-determined temperature profile for the Earth...
The Earth's Crust and Mantle presents the deformations of the Earth's crust, which are attributed to mantle currents. This book explores the gravity observations, which give indications about the way in which the masses in the Earth are distributed. Comprised of five chapters, this book starts...
We have studied the possibility of short time-scale energy transfer from the ice sheet loading and unloading processes to the Earth's interior via viscous dissipation associated with the transient viscoelastic flow in the mantle. We have focussed on the magnitude of glacially induced deformations and...
I propose that the parent-daughter element fractionation caused by such fluids dominates the Sr, Nd, and Pb isotope evolution of the mantle in the second half of Earth's history. A simple two-layered mantle model based on such a premise seems to be consistent with the present knowledge of ...
Dr Tozer casts a critical eye over the concept of thermal plumes that is attracting a good deal of attention in the Earth sciences just now.doi:10.1038/244398a0TOZERD. CNatureTOZER D. C. 1973. Thermal plumes in the Earth's mantle. Nature 244, 398-400....