Fig. 1: Simplified geological map and stratigraphy of the Huronian Supergroup. | Communications Earth & Environment

Fig. 1: Simplified geological map and stratigraphy of the Huronian Supergroup.

From: Incomplete oxidative sulfide weathering and low atmospheric oxygen levels during the Great Oxidation Event

Fig. 1: Simplified geological map and stratigraphy of the Huronian Supergroup.

a Location of the Huronian Supergroup32 and core Kerr-McGee150-4 (white star). b Stratigraphic correlation between the Huronian Supergroup in Canada and the Transvaal Supergroup of the Transvaal Basin in South Africa24,27. Published radiometric ages24,25,26,27,28,40,85 and redox indicators (Quadruple sulfur isotope records15,16,20,21,29 and redox-sensitive detrital minerals9,30,32,33,34) are also shown. MIF-S and MDF-S refer to mass-independent and mass-dependent sulfur isotope fractionation, respectively. The quadruple sulfur isotope data from the Huronian Supergroup may have been affected by post-depositional alteration31.

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