The mantle of the Earth is _. A. the outermost layer B. between the crust and the core C. the innermost layer D. made up of the atmosphere 相关知识点: 试题来源: 解析 B。解析:地幔位于地壳和地核之间。选项A,地球的最外层是地壳;选项C,地球的最内层是地核;选项D,地幔与大气没有关系,大气...
magma formed in the early Earth is considered to have remained gravitationally stable at the bottom of the mantle for approximately 4,000 million years. tohoku.ac.jp 原始地球的岩浆海 时代形成的超高密度岩浆,在此之后的四十多亿年 的 地 球 历史 中被 认为有重 力 性、 且稳 定地存在于地幔底部...
is put over the flame of a gas or oil lamp to make it shine more brightly5 [singular] technicalHE the part of the Earth around the central coreExamples from the Corpusmantle• Now he is giving himself the chance to be chosen by direct election again, thus gaining a mantle of ...
A. The rotation of the Earth. B. The gravitational pull of the Moon. C. Convection currents in the mantle. D. The impact of asteroids. 相关知识点: 试题来源: 解析 C。解析:地幔中的对流运动是地幔运动并导致地球表面变化的主要原因。A选项,地球的自转不是地幔运动的主要原因;B选项,月球的引力主要...
Melting temperature of the earths mantle and core—earths thermal structure. R Boehler. Annual Review of Earth and Planetary Sciences . 1996Boehler, R. (1996) Melting temperature of the Earth's mantle and core: Earth's thermal structure. Annual Review of Earth and Planetary Sciences, 24, 15...
The Mystery of the Earth's Mantle 作者:Malakhov, A. 译者:Sobolev, David 出版年:2001-9 页数:232 定价:$ 18.07 ISBN:9780898755664 豆瓣评分 目前无人评价
百度试题 结果1 题目The hottest part of the earth is the ___. A. crust B. mantle C. core D. atmosphere 相关知识点: 试题来源: 解析 C。地球最热的部分是地核。
B. It is a layer with very low temperature. C. It is a semi - molten and ductile layer. D. It is mainly made of gas. 相关知识点: 试题来源: 解析 C。解析:软流圈(asthenosphere)是上地幔(upper mantle)的一部分,它不是完全固态和刚性的(A错误),它是一种半熔融、具有韧性的层,这里的物质...
they move. As they travel deeper within the Earth, the mantle grows denser. Increased density causes the wave to travel faster while gradually curving back to the surface. If a seismic wave traverses a hot spot, it will temporarily slow as it crosses this region of increased temperature. ...
题目The mantle of the Earth is _. A. Solid throughout B. Liquid throughout C. Partly solid and partly liquid D. Gaseous 相关知识点: 试题来源: 解析 C。解析:地球的地幔部分是固态,部分是液态,上地幔存在软流层为液态物质,其他部分为固态物质。选项A说整个地幔是固态错误。选项B说整个地幔是液态...