Sulfur isotope anomalies in coal combustion: Applications to the present and early Earth environments.

ABSTRACT: The observation of mass-independent sulfur isotope fractionations (S-MIF) in Archean-Paleoproterozoic rocks has been instrumental in constraining oxygen levels on early Earth. The S-MIF effect, experimentally demonstrated to result from photochemical reactions, has now been observed in coal combustion, expanding our understanding of this phenomenon. Our study reveals that the negative Δ³³S anomalies produced by coal combustion are consistent with similar anomalies observed in present-day sulfate aerosols in Beijing, China, and the black crust sulfates formed on building stones, monument walls, and sculptures in Europe that contribute to carbonate stone deterioration and cultural heritage damage. This finding provides independent evidence for a critical role of atmospheric sulfat

SUBMITTER: Shen Y 

PROVIDER: S-EPMC11665902 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature