Forming the Moon from terrestrial silicate-rich material
نویسندگان
چکیده
منابع مشابه
Terrestrial aftermath of the Moon-forming impact.
Much of the Earth's mantle was melted in the Moon-forming impact. Gases that were not partially soluble in the melt, such as water and CO2, formed a thick, deep atmosphere surrounding the post-impact Earth. This atmosphere was opaque to thermal radiation, allowing heat to escape to space only at the runaway greenhouse threshold of approximately 100 W m(-2). The duration of this runaway greenhou...
متن کاملTerrestrial aftermath of the Moon - forming impact Norman H . Sleep
Much of the Earth’s mantle was melted in the Moon-forming impact. Gases that were not partially soluble in the melt, such as water and CO2, formed a thick, deep atmosphere surrounding the postimpact Earth. This atmosphere was opaque to thermal radiation, allowing heat to escape to space only at the runaway greenhouse threshold of approximately 100 W m−2. The duration of this runaway greenhouse ...
متن کاملChemical Fractionation after the Moon-forming Giant
Introduction: The Moon is generally thought to have formed from a circumterrestrial disk generated by the impact of a Mars-sized body onto a nearly-formed Earth [1]. The gravitational energy released in such an event is sufficent to completely melt and partially vaporize the Earth and lunar-forming material. This fluid phase of the evolution is not well understood, but may have delayed lunar ac...
متن کاملGlobal silicate mineralogy of the Moon from the Diviner lunar radiometer.
We obtained direct global measurements of the lunar surface using multispectral thermal emission mapping with the Lunar Reconnaissance Orbiter Diviner Lunar Radiometer Experiment. Most lunar terrains have spectral signatures that are consistent with known lunar anorthosite and basalt compositions. However, the data have also revealed the presence of highly evolved, silica-rich lunar soils in ki...
متن کاملRadiation mitigation at the Moon by the terrestrial magnetosphere
[1] The Moon spends 25% of its orbit within the terrestrial magnetosphere. The magnetic field from the terrestrial magnetosphere can potentially provide radiation shielding from solar energetic particle events and lower energy galactic cosmic rays, which can be a significant hazard during extra-vehicle activities or during human exploration of the lunar surface. The level of shielding provided ...
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ژورنال
عنوان ژورنال: Chemical Geology
سال: 2013
ISSN: 0009-2541
DOI: 10.1016/j.chemgeo.2012.12.015