Ontology highlight
ABSTRACT:
SUBMITTER: Babikov D
PROVIDER: S-EPMC5373401 | biostudies-literature | 2017 Mar
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20170303 12
A hierarchy of isotopically substituted recombination reactions is formulated for production of sulfur allotropes in the anoxic atmosphere of Archean Earth. The corresponding system of kinetics equations is solved analytically to obtain concise expressions for isotopic enrichments, with focus on mass-independent isotope effects due to symmetry, ignoring smaller mass-dependent effects. Proper inclusion of atom-exchange processes is shown to be important. This model predicts significant and equal ...[more]