CA Partin, Stefan V Lalonde, NJ Planavsky, A Bekker, OJ Rouxel, TW Lyons, KO Konhauser

2013/12/20

Chemical Geology

362

82-90

Elsevier

Abstract The concept of the Great Oxidation Event (GOE), during which atmospheric oxygen
rose precipitously and perhaps to near-modern levels around 2.4–2.1 billion years ago (Ga),
has become entrenched in our views on secular atmospheric evolution. Multiple proxies
confirm a permanent shift towards more oxygenated conditions at some time near the
Archean–Proterozoic boundary. However, it remains unclear precisely when this transition
occurred, due in part to the likely temporal variability in those early levels and different ...