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Prebiotic organic syntheses and the origin of lifeThe outline of a modern paradigm for the origins of life on earth was first formulated by Oparin (1924). According to the considered hypothesis, living organisms arose naturally on the primitive earth through a lengthy process of chemical evolution of organic matter which began in the atmosphere and culminated in the primordial seas. Details regarding the chemical evolution paradigm are discussed, and chemical evolutionary processes formulated by principal contributors are reviewed in a historical context. Attention is given to the Oparin model of the prebiotic earth, the Urey model, the Rubey model, a multistage model for early atmospheric evolution, and other variations on the theme of prebiotic atmospheres. Evidence in support of the chemical evolution paradigm is considered along with modern models regarding the accretion of earth and the formation of its core, and problems and prospects for future studies.
Document ID
19840060268
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Chang, S.
(NASA Ames Research Center Moffett Field, CA, United States)
Desmarais, D.
(NASA Ames Research Center Moffett Field, CA, United States)
Mack, R.
(NASA Ames Research Center Extraterrestrial Research Div., Moffett Field, CA, United States)
Miller, S. L.
(California, University La Jolla, CA, United States)
Strathearn, G. E.
(California, University Los Angeles, CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Space Biology
Accession Number
84A43055
Funding Number(s)
CONTRACT_GRANT: NAGW-20
Distribution Limits
Public
Copyright
Other

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