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. Author manuscript; available in PMC: 2020 May 27.
Published in final edited form as: Chem Geol. 2017 Dec 10;474:1–8. doi: 10.1016/j.chemgeo.2017.10.004

Fig. 2.

Fig. 2.

Raw data for extractable Cr by the H2O2 extraction (△) and the NaOH extraction (▲). The yellow solid line is the threshold for NaOH extraction and the green dashed line is the threshold for H2O2 extraction. The ground surface elevation at the drill-hole location is 5.0 m ASL. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)