Fig. 2: The adsorption of P onto kaolinite at four different environmental conditions.
From: The kaolinite shuttle links the Great Oxidation and Lomagundi events

Black squares and continuous line represent P adsorption at pH 8, IS = 0.56 M conditions; green downward-facing triangles and dotted line represent P adsorption at pH 8, IS = 0.01 M conditions; purple upward-facing triangles and dashed-dotted line show P adsorption at pH 6, IS = 0.01 M conditions; blue circles and dashed line are P adsorption at pH 4, IS = 0.01 M conditions. Error bars represent the ±1 standard deviation of replicates.