Côté, Alexander SBrodholt, John PBadro, James
The composition of the Earth's interior beneath the continents often contains more _. A. basalt B. granite C. water D. gas 相关知识点: 试题来源: 解析 B。解析:大陆下面的地球内部组成往往含有更多的花岗岩。花岗岩是大陆地壳的主要组成成分之一,而大洋地壳更多是由玄武岩组成。这种差异是由地球内部构造...
the chemical evolution of the Earth's mantle, the effect of core formation, and indicate negligible exchange between the core and mantle throughout the geologic record (the last 3.5 Ga). The composition of the Earth's core is poorly constrained beyond its major constituents (i.e. an Fe Ni...
the Earth. In our existing inventory of meteorites it appears that there is no identifiable archetype that distinguishes itself as being a perfect likeness of the Earth The composition of the Earth, integrated from core to atmosphere, is comparable to that of undifferentiated meteorites (chondrites)...
core mantle high pressure iron melt magma ocean silicates 摘要 This paper provides the state-of-the-art discussion of major aspects of the composition and evolution of the Earth's core. A comparison of experimentally-derived density of Fe with seismological data shows that the outer liquid core ...
The density of the outer core is about 3% smaller than pure iron, which implies that the core contains a substantial amount of one or more low atomic mass elements. Candidates which have been suggested on various grounds include S, H, C, O, Si, and Mg. Plausible models of accretion of...
RECENTLY, Birchreported data on the density and composition of the mantle and core. He wrote: ``The resulting densities in the lower mantle are found to be in good agreement with shock-wave measurements on rocks having FeO contents in the range 10 +/- 2% by weight ... except for iron ...
Pecularities of Determining the Composition of the Gardener's Personal Data as a Subject of Personal Data The paper is devoted to the issue that is one of the most significant in law and that is subject to clarification in cases of protection of the subject of ... S Lvova - 《Lex Russi...
below the earth's surface, and further, express the view that the really important increase in χ occurs at a depth of about 700 km.; and they accordingly suggest a change in the composition of the earth in the vicinity of this depth. This result is specially interesting in view of ...
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