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lower mantle造句
1. Modeling of lower mantle seismic anisotropy beneath subduction zones. 2. Can earthquakes occur in the lower mantle? 3. There are three layers: the upper mantle, lower mantle and the core. 4. Then another, smaller concentration shows up near the top of the lower mantle, around 745 miles down. 5. Occurrence of lying slab on 660 km phase change boundary is mainly due to the higher viscosity contrast between lower mantle and upper mantle. 6. The researchers think that silicate perovskite — the more prevalent source of iron in the lower mantle — should also exhibit the spin transition zone, although they have not tested it yet. 7. It really does support the idea that plumes are features that come from the lower mantle. 8. This paper deals with the advance in study of the composition, geochemistry and deep seated fluids of lower mantle. 9. The team suspects the plume is pooling at the boundary between the upper and lower mantle, then snaking its way to the crust below the archipelago before rising to feed Hawaii's volcanic islands. 10. The mantle was further subdivided at a depth of 670 kilometers into upper and lower layers, with a hint of a layer a couple of hundred kilometers thick at the bottom of the lower mantle. 11. This is the dominant problem to constraint the mineral composition of the Earth's lower mantle. 12. About 80% elements in the upper mantle and 60% in the lower mantle have been past through by at least two curves. 3) The degree of mantle mixture also depends on the convection time. 13. Like the CORE of earth, the mantle can also be divided into two concentric layers, the lower mantle and the upper mantle. 14. Comparing low degree geoid anomaly with mantle density anomaly, The authors think the earth shape asymmetry is mainly caused by lower mantle density inhomogeneity . 15. This is the key problem for the constraint on the possible composition of lower mantle. 16. This won't affect climate tomorrow, but what our results tell you is that carbon from the surface can go all the way into the lower mantle, which may be a long-term sink for carbon. 17. The east China continent located over the heat source of the lower mantle was uplifted, broken and drifted toward the ocean. 18. Based on the results from both experimental petrology and mineral physics, scientists have worked out silicate perovskite as the major phase in the lower mantle. 19. These forces change the configurations of electrons in the mineral ferropericlase in the lower mantle, making it "softer" than previously estimated.