ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The presence of mass-independently fractionated sulphur isotopes (MIF-S) in many sedimentary rocks older than ∼2.4 billion years (Gyr), and the absence of MIF-S in younger rocks, has been considered the best evidence for a dramatic change from an anoxic to oxic atmosphere around ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/nature05044
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