Chemical composition of the Earth after the giant impact

  title={Chemical composition of the Earth after the giant impact},
  author={L. Liu},
  journal={Earth, Moon, and Planets},
  • L. Liu
  • Published 1992
  • Materials Science
  • Earth, Moon, and Planets
The giant impact hypothesis for the origin of the Moon has been widely accepted. One of the most important features of this hypothesis is that the impactor's metallic core was incorporated in the Earth after impact. If the mass of the impactor is 0.82 × 1027 g, the mass of the impactor core was estimated to be 0.19 × 1027 g, which is about 1/10 of present Earth's core. Liu (1982) derived the bulk composition of the Earth from CI chondrites, and concluded that the Fe content of his model appears… Expand
Origin and Early Evolution of Terrestrial Planet Atmospheres and Oceans
  • L. Liu
  • Environmental Science
  • 2018
Planet atmospheric compositions are determined by the availability of a gas species, its molecular weight and the mass (or gravity force) of a planet. Both Mercury and the Moon are not massive enoughExpand


Constitution of terrestrial planets
  • H. Wänke
  • Chemistry
  • Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1981
Reliable estimates of the bulk composition are so far restricted to the three planetary objects from which we have samples for laboratory investigation, i.e. the Earth, the Moon and the eucriteExpand
Chemical compositions of the Moon, Earth, and eucrite parent body
  • E. Anders
  • Geology
  • Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1977
Model compositions of the Moon and Earth were calculated on the assumption that these planets had experienced the same nebular fractionation processes as the chondrites. The proportions of 7 basicExpand
Geochemical implications of the formation of the Moon by a single giant impact
The origin of the Moon by a single massive impact of a body slightly larger than Mars with the Earth can explain the angular momentum, orbital characteristics and unique nature of the Earth–MoonExpand
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A number of technical improvements in the calculations which simulate the most violent event that has occurred to the earth during its history: its collision with the next largest body which wasExpand
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Abstract Previous papers in this series have described the smoothed particle hydrodynamics method (SPH) which we have employed to explore the conditions in which a major planetary collision may haveExpand
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Summary Measurements of the velocity of compressional waves in silicates and oxides having a range of density from 2.6 to 5g/cm3 suggest a simple dependence of velocity upon density and meanExpand
Chemical Composition of the Moon
The probable chemical composition of the lunar globe is developed as far as can be done on the eve of a space age in which direct acquaintance with the object of the authors' study will largely supersede deductions made on theoretical grounds. Expand
Satellite-Sized Planetesimals and Lunar Origin
Abstract Exploratory calculations using accretionary theory are made to demonstrate plausible sizes of second-largest, third-largest, etc., bodies at the close of planet formation in heliocentricExpand
Mineralogy of the planets. A voyage in space and time.
Relevant features of the atmospheres are: Mercury: trace He and H2; no other gases detected. Venus: 107 Pa at surface; 250 K, 1 Pa above clouds, mostly C02, trace CO, H2O, HCl; refractive index ofExpand