Global atmospheric oxygen variations recorded by Th/U systematics of igneous rocks

Volume: 116, Issue: 38, Pages: 18854 - 18859
Published: Sep 3, 2019
Abstract
Atmospheric oxygen has evolved from negligible levels in the Archean to the current level of about 21% through 2 major step rises: The Great Oxidation Event (GOE) in the early Proterozoic and the Neoproterozoic Oxygenation Event (NOE) during the late Proterozoic. However, most previous methods for constraining the time of atmospheric oxygenation have relied on evidence from sedimentary rocks. Here, we investigate the temporal variations of the...
Paper Details
Title
Global atmospheric oxygen variations recorded by Th/U systematics of igneous rocks
Published Date
Sep 3, 2019
Volume
116
Issue
38
Pages
18854 - 18859
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