Atmospheric record in the Hadean Eon from multiple sulfur isotope measurements in Nuvvuagittuq Greenstone Belt (Nunavik, Quebec)

Mass-independent fractionation of sulfur isotopes (S-MIF) results from photochemical reactions involving short-wavelength UV light. The presence of these anomalies in Archean sediments [(4–2.5 billion years ago, (Ga)] implies that the early atmosphere was free of the appropriate UV absorbers, of whi...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2015-01, Vol.112 (3), p.707-712
Hauptverfasser:	Thomassot, Emilie, O’Neil, Jonathan, Francis, Don, Cartigny, Pierre, Wing, Boswell A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Earth Sciences Fractionation Geochemistry Isotopes Photochemistry Physical Sciences Rocks Sciences of the Universe Sediments Sulfur Ultraviolet radiation
Online-Zugang:	Volltext
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