rnJapan Synchrotron Radiation Research In- stituteYoshiyuki TatsumirnInstitute for Research on Earth EvolutionAmerican Association for the Advancement of ScienceScienceTateno, S., Hirose, K., Ohishi, Y., & Tatsumi, Y. The structure of iron in Earth's inner core. Science. 330, 359-361 (2010)...
A. molten rock B. solid iron and nickel C. gas D. water 相关知识点: 试题来源: 解析 B。解析:地球的内核主要由固态的铁和镍组成。选项A,熔融的岩石主要存在于地幔中,而非内核;选项C,地球内核不是由气体组成的;选项D,水不可能是地球内核的主要组成部分。反馈...
A. iron and nickel B. rock and soil C. water and gas D. ice and snow 相关知识点: 试题来源: 解析 A。本题考查地球内部结构的知识。地球的内核主要由铁和镍组成,选项 B 岩石和土壤主要存在于地壳,选项 C 水和气体通常不在地球内核,选项 D 冰雪更不可能在内核。反馈...
Seismological studies, suggest that there is 3-4% anisotropy of P-waves in the Earth's inner core. Hexagonal closed-packed solid iron has been proposed to be the major constituent of the inner core, but a lack of knowledge about the elastic properties of this phase at inner-core pressures...
Temperature of the inner-core boundary of the Earth: melting of iron at high pressure from first-principles coexistence simulations. Phys. Rev. B 79, 060101.Alfe, D., 2009. Temperature of the inner-core boundary of the Earth: melting of iron at high pressure from first-principles ...
The Earth’s inner core comprises iron-nickel alloys with light elements. However, there is no clarity on the phase properties of these alloys. Here we show phase relations and equations of state of iron–nickel and iron–nickel–silicon alloys up to 186 gigapascals and 3090 kelvin. An ordere...
Earth's coreHigh pressureShock wavemelting temperatureThe Earth's core consists of iron as the major component. The melting point of iron at the inner core boundary constrains the thermal structure and solidification of the Earth's core. However, the current estimation of the melting temperature ...
the planet earth and though all the famous basketball players and celebrities might be saying that the earth is flat i have breaking news it's not let me explain there was a great big ball of lava orbiting the sun it had a core of nickel and iron isn't that so fun yes sir after a...
The year 2023 marks the mid-point of the 15-year period envisaged to achieve the Sustainable Development Goals, targets for global development adopted in September 2015 by all United Nations Member States. To help track where we are on this journey, and to amplify success stories, in this ...
Soon after the discovery of seismic anisotropy in the Earth's inner core1, it was suggested that crystal alignment attained during deformation might be responsible2. Since then, several other mechanisms have been proposed to account for the observed anis