Extended Data Fig. 4: Comparison of N concentrations with K2O concentrations of the studied BIF samples. | Nature Geoscience

Extended Data Fig. 4: Comparison of N concentrations with K2O concentrations of the studied BIF samples.

From: A seawater oxygen oscillation recorded by iron formations prior to the Great Oxidation Event

Extended Data Fig. 4: Comparison of N concentrations with K2O concentrations of the studied BIF samples.The alternative text for this image may have been generated using AI.

Note that the two samples with exceptional high Al2O3 contents (>2 wt.%) are not included. 2σ error bars of the data are smaller than the symbols and thus not shown. WWF = Weeli Wolli Formation; JM = Joffre Member; DGM = Dales Gorge Member; MMF = Marra Mamba Formation.

Back to article page