Ontology highlight
ABSTRACT:
SUBMITTER: Ueno Y
PROVIDER: S-EPMC2736450 | biostudies-literature | 2009 Sep
REPOSITORIES: biostudies-literature
Ueno Yuichiro Y Johnson Matthew S MS Danielache Sebastian O SO Eskebjerg Carsten C Pandey Antra A Yoshida Naohiro N
Proceedings of the National Academy of Sciences of the United States of America 20090817 35
Distributions of sulfur isotopes in geological samples would provide a record of atmospheric composition if the mechanism producing the isotope effects could be described quantitatively. We determined the UV absorption spectra of 32SO2, 33SO2, and 34SO2 and use them to interpret the geological record. The calculated isotopic fractionation factors for SO2 photolysis give mass independent distributions that are highly sensitive to the atmospheric concentrations of O2, O3, CO2, H2O, CS2, NH3, N2O, ...[more]