Fig. 9

a The pore size distribution of concretion with PCE, b The pore size distribution of concretion with PNS, c The cumulative intrusion of concretion with PCE, d The cumulative intrusion of concretion with PNS

a The pore size distribution of concretion with PCE, b The pore size distribution of concretion with PNS, c The cumulative intrusion of concretion with PCE, d The cumulative intrusion of concretion with PNS