Fig. 3: Desorption of P from kaolinite, Fe-oxide and Al-hydroxide surfaces when transitioning from freshwater to marine conditions.
From: The kaolinite shuttle links the Great Oxidation and Lomagundi events
Freshwater conditions were simulated at pH 4 and ionic strength = 0.01 M, while marine conditions refer to pH 8 and ionic strength = 0.56 M. The black circles and continuous line represent P desorption from kaolinite surfaces; blue squares and dotted line show the P desorption from Fe-oxide; green triangles and dashed line show P desorption from Al-hydroxide. Error bars represent the ±1 standard deviation of replicates.
