Fig. 1 Changes with time in the specific activity of intraaggregate particulate organic matter (iPOM) in large microaggregates released from unstable macroaggregates with slaking. The specific activity was estimated by dividing the net change in iPOM-¹⁴C of the fraction due to slaking by the net change in total (¹²C + ¹⁴C) iPOM-C. The bars represent the standard error