作者:Canup, R. M. (EDT)/ Righter, K. (EDT) 出版社:Univ of Arizona Pr 出版年:2000-11 页数:555 定价:$ 67.80 装帧:HRD ISBN:9780816520732 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 我要写书评 Origin of the Earth and Moon的书评 ···(全部 0 条)...
We have narrated how Homo sapiens has step by step discovered the vastness of the universe by inventing methods to measure distances and properties of celestial bodies. Along with deep space, we have deep time. The huge distances revealed are hard to imagine. Similarly painful for common sense ...
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听力原文: The origin of Earth's moon, the largest moon in the solar system, is still something of a mystery. There are some theories about its origin however. Now, keep in mind that a theory of the moon's origin has to be consistent with two important facts. The first fact is that...
as the leading theory for the formation of Earth's Moon. Successful scenarios for lunar origin should be able to explain the chemical composition of the Moon (volatile content and stable isotope ratios), the Moon's initial thermal state, and the system's bulk physical and dynamical properties....
The origin of the earth, the moon, and the solar system as a whole is a problem that has not yet been settled in detail.The Sun probably formed by condensation (凝结) of the central region of alarge cloud of gas and dust, with the planets andother bodies f the solar system forming ...
Moon was formed from the Earth's mantle mate- rial, after most of the iron sank to the core. Indeed, while the Earth contains about 32.5% iron, the Moon has only about 10-15%. How- ever, concentration of FeO in the Earth's man- tle is about 8%, compared to 13% in the Moon....
gravitation would exceed the centrifugal force until a distance from the surface was reached of more than double the earth's radius. Dr. Ball upon this writes that I "concluded" that when the moon was detached from the earth, "the earth's radius must have been about three times its prese...
The impact orientation and size are constrained by the angular momentum contained in both the Earth's spin and the Moon's orbit, a quantity that has been nearly conserved over the past 4.5 billion years. Simulations of potential moon-forming impacts now achieve resolutions sufficient to study ...
Ca-isotope data and modeling of the lunar magma ocean together demonstrate indistinguishable mass-dependent Ca isotopic compositions of the bulk silicate Earth and Moon. This implied Earth-Moon isotope equilibration is consistent with the Moon’s high-energy giant-impact (Synestia) origin and not ...