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Fig. 6 | Journal of Palaeogeography

Fig. 6

From: Paleosols in an outcrop of red beds from the Upper Cretaceous Yaojia Formation, southern Songliao Basin, Jilin Province, NE China

Fig. 6

Micro pedogenesis observed in thin sections and SEM. a Root traces marked with a yellow arrow in plane-polarized light; note the color difference between root traces and hematite bearing surrounding paleosol matrix; b Calcite filling root traces marked with yellow arrows in perpendicular polarized light; c Analcime filled root traces observed in SEM, the analcime are approximately 50–200 μm in diameter; d Clay skins with diffusion ferran around clay clasts in the paleosols

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