Browsing Electronic Theses and Dissertations from 2009 by Subject "Atmospheric oxygenation"
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Sedimentology and Geochemistry of Regressive and Transgressive Surfaces in the Gunflint Formation, Northwestern, Ontario
(2016)The 1.878 Ga Gunflint and equivalent iron formations of the Animikie Basin were deposited during the period after the rise in atmospheric oxygen during the Great Oxidation Event, which began at approximately 2.4 Ga. The ...