Core of the Earth - - Iron-Nickel Alloydoi:10.1080/00357529.1965.11765788Taylor & FrancisRocks & Minerals
The Earth's core is mainly composed of _. A. Iron and nickel B. Silicon and oxygen C. Aluminum and magnesium D. Calcium and potassium 相关知识点: 试题来源: 解析 A。解析:地球的核心主要由铁和镍组成。选项A正确。选项B中的硅和氧是地壳中较为常见的元素组成。选项C中的铝和镁不是地核的主...
主语中的top和solid并列修饰part of the mantle。C为该句的同义替换,故正确。 结果二 题目 The Earth comprises three principal layers: the dense, iron-rich core, the mantle made of (硅酸盐) that are semi-molten at depth, and the thin, solid-surface crust. There are two kinds of crust, a ...
Based on our findings, the thermodynamic stability of these alloys suggests that these volatile elements might indeed be partially sequestered within the Earth’s core. We suggest potential reservoirs for volatile elements within the deep Earth, augmenting our understanding of the deep Earth’s ...
de Wijs GA, Kresse G, Vocˇadlo L, Dobson D, Alfe` Gillan MJ, and Price GD (1998) The viscosity of liquid iron at the physical conditions of the Earth's core. Nature 392: 805-807.The viscosity of liquid iron at the physical conditions of the Earth’s core. De Wijs G A,Kresse...
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The Earth comprises three principal layers: the dense, iron-rich core, the mantle made of silicate rocks that are semimolten at depth, and the thin, solid-surface crust. There are two kinds of crust, a lower and denser oceanic crust and an upper, lighter continental crust found over only...
The Earth's core is mainly made up of. A. Iron and nickel B. Oxygen and nitrogen C. Silicon and aluminum D. Carbon and hydrogen 相关知识点: 试题来源: 解析 A。解析:地球的核心主要由铁和镍组成。氧和氮是大气中的主要成分,硅和铝更多存在于地壳等部分,碳和氢不是地球核心的主要组成成分。
A light component in the Earth's outer core could account for its apparent lower density and higher seismic parameter than pure iron. On the basis of shock data for iron and iron-nickel, Birchand McQueen and Marshconcluded that the outer core was less dense than pure iron by 10 and 8 ...
An iron core-type earthing structure of a big pie and a core column of a reactor comprises an upper big pie, a lower big pie, an iron core pie, a core column ground screen, a core column ground screenearthing lead wire and a coil. The structure is characterized in that an opening ...