Figures & Tables

Figures:

Figure 2. Physical and chemical characteristics of the sediments.

Figure 3. (a) Concentrations of dissolved chloride are plotted as a function of depth to show the lack of variation through the peat and underlying sediment. (b) ²²⁴Ra shows no correlation with chlorinity below a few centimeters in the core, supporting the assumption that K_D is constant through the homogeneous sediment layers.

Figure 4. Pore-water radium activities as a function of depth.

Tables:

Table 1. Isotopes of interest with their half-lives and decay constants.

Table 2. Radium distribution coefficients (K_D) in Everglades peat.

Table 3. Model results and calculated radium fluxes to the surface water.