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Field photographs of the characteristic types of depositional facies observed across the Lower Red Eyes iron mound. (a) Terraces were defined as having a vertical drop of >5 cm. (b) Pools (top view) were defined as having a diameter of >1.5 m and a water depth of >0.3 m. (c) Microterracettes were defined as having a vertical drop of <2 cm with shallow pools behind and typically extended over several meters in length.
