Evidence in Trace Elements and Fe3+/Fe2+ Ratios of Archaean and Early Proterozoic Shales for the Early Development of Oxic Atmosphere

H. Ohmoto
Department of Geosciences, The Pennsylvania State University, University Park, PA, 16802, USA

Mineralogical Magazine; 1998 v. 62A; no. 2; p. 1106-1107; DOI: 10.1180/minmag.1998.62A.2.245
© 1998, The Mineralogical Society
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