Earth’s inner core—discoveries and conjectures - Richards - 2000 () Citation Context ...ties in the α-effect, schematically indicated by the dashed loop having the wrong orientation. et al., 2001), 2 see Fig. 2. On general grounds we assume that the geodynamo is of the αΩ type...
A. cooler than the outer core B. hotter than the outer core C. at the same temperature as the outer core D. sometimes hotter and sometimes cooler than the outer core 相关知识点: 试题来源: 解析 A。解析:地球的内核比外核温度低。虽然内核温度仍然很高,但外核由于液态物质的对流等原因,温度更...
The Earth’s inner core is separated from the rest of the planet by its liquid outer core, so it rotates at a different pace and direction.
The inner core of the Earth is _. A. Cooler than the outer core B. At the same temperature as the outer core C. Warmer than the outer core D. Has no temperature difference with the mantle 相关知识点: 试题来源: 解析 C。解析:地球的内核比外核温度更高。随着深度增加,地球内部温度升高,...
Earth's inner core, a hot iron ball the size of Pluto, has stopped spinning in the same direction as the rest of the planet and might even be rotating the other way, research suggested on Monday. Roughly 3,100 miles below the Earth's surface, this "planet within the planet" can spin...
百度试题 结果1 题目The inner core of the Earth is ___. A. liquid B. gas C. solid 相关知识点: 试题来源: 解析 C。解析:地球的内核是固态的。地球的外核是液态,地核不是气态。反馈 收藏
Knowledge application- use what you know to select true and false statements about the inner core Additional Learning If you want to learn more about what's going on way down inside the Earth, read the lesson titled Earth's Inner Core Lesson for Kids: Definition & Facts. You will find out...
Since Earth's inner core is believed to be dynamically linked to its outer layers, tied to the outer core by electromagnetic coupling and bound to the mantle by gravitational forces, the study could also aid our understanding of how processes deep inside our planet affect its surface – the ...
Despite considerable progress in seismology, mineral physics, geodynamics, paleomagnetism, and mathematical geophysics, Earth’s inner core structure and evolution remain enigmatic. One of the most significant issues is its thermal history and the curren
Seismic observations reveal that the Earth’s inner core oscillates with a period of approximately seven decades. The multidecadal periodicity coincides with that of several other geophysical observations, particularly the variations in the length of day and the Earth’s magnetic field, suggesting ...