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Fig. 5 | Journal of Palaeogeography

Fig. 5

From: Ooidal ironstones in the Meso-Cenozoic sequences in western Siberia: assessment of formation processes and relationship with regional and global earth processes

Fig. 5

Cross plot between mean diameter and standard deviation of pyrite framboids. Oxic-anoxic field boundaries are adapted on the basis of published data (cf. Wilkin et al. 1996; Bond and Wignall 2010; Merinero and Cárdenes 2018). Most of the samples of the Slavgorod Formation plot within the anoxic field. Form. = Formation

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