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Mantle Degassing Chronology

Early attempts to use noble gases to study atmospheric evolution compared the amount of radiogenic noble gases in the atmosphere with the production in the Earth s interior (e.g., Damon Kulp, 1957 Turekian, 1964). For a quantitative treatment, Turekien (1964) assumed that degassing of noble gas was represented by a first-order rate equation (i.e., the degassing rate is proportional to the amount in the mantle). 40Ar evolution is then expressed as [Pg.197]

For illustration s sake, we assume the solar abundance ratio of 0.01 for 23SU/127I (Anders Grevesse, 1989), the chondritic value of 0.006 for (244Pu/23SU)0 (Hudson [Pg.201]

Ozima M, Azuma S-1, Zashu S, Hiyagon H (1993) " " Pu fission Xe in the mantle and mantle degassing chronology. In Primitive solar nebrrla and origin of planets. Oya H (ed) Terra Scientific Publishing Co, Tokyo, p 503-517... [Pg.476]

See other pages where Mantle Degassing Chronology is mentioned: [Pg.197]    [Pg.197]    [Pg.197]    [Pg.199]    [Pg.201]    [Pg.197]    [Pg.197]    [Pg.197]    [Pg.199]    [Pg.201]    [Pg.199]    [Pg.200]    [Pg.192]   


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Degassing

Mantle

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