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Noble Gases in Terrestrial Planets: Evidence for Cometary Impacts?
Published online by Cambridge University Press: 12 April 2016
Abstract
The possible role of comets in bringing volatiles to the inner planets is investigated by means of laboratory studies of the ability of ice to trap gases at low temperatures. The pattern of the heavy noble gases formed in the atmosphere of Venus can be explained by the impact of a planetesimal composed of ices formed in the range of 20 to 30 K. The noble gas patterns on Mars and Earth are less explicable by cometary bombardment alone.
- Type
- Section III: Comets, Origins, and Evolution
- Information
- International Astronomical Union Colloquium , Volume 116 , Issue 1: Comets in the Post-Halley Era , 1989 , pp. 429 - 437
- Copyright
- Copyright © Kluwer 1991
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