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Implications of isotopic signatures of noble gases for the origin and evolution of terrestrial atmospheresIt is contented that the initial quantities of noble gases present in planetesimals were controlled by the sizes and masses of the planets, and fit with a model of successive accretion. The successive accretion model proposed for the origin of terrestrial planets is based upon: (1) the sequence of zones of condensation of solar nebula, (2) the condensation sequence of minerals, iron and nickel in different P-T regimes of the solar nebula, and (3) the sequence in the nucleation of iron cores of the terrestrial planets.
Document ID
19890001446
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rao, A. S. P. (Osmania Univ. Hyderabad, India)
Date Acquired
September 5, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Lunar and Planetary Inst., MECA Symposium on Mars: Evolution of its Climate and Atmosphere
Subject Category
Lunar And Planetary Exploration
Accession Number
89N10817
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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