Fig. 6

IRM variation during RCD with ascorbic acid of different concentrations. The experiments were confirmed in 72 h using the dripping method. The experiments were applied for 2 core sample which was cut 4 sister specimens. The 2 sites were coral-bioclastic limestone and rhodolith limestone, respectively. The square, triangle, rhombus, and circle symbols are 5% (specimen: 4a), 10% (specimen: 3a), 15% (specimen: 2a) and 20% (specimen: 1a) ascorbic acid solution concentration, respectively