Earth sciences: Signature required

L. Paul Knauth

Research output: Contribution to journalShort survey

6 Scopus citations

Abstract

Most geologists agree that Earth's atmosphere was oxygen-free until 2.4 billion years ago. But the latest sulphur-isotope measurements from sedimentary rocks suggest otherwise.

Original languageEnglish (US)
Pages (from-to)873-874
Number of pages2
JournalNature
Volume442
Issue number7105
DOIs
StatePublished - Aug 24 2006

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ASJC Scopus subject areas

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