Figure 5. Simulated ³⁷Cl depth profile for Site 997 generated by the combined advection-diffusion model of Egeberg and Dickens (1999) with different upward vertical advection rates (v = -0.10, -0.18, and -0.30 mm/yr) using diffusion coefficients from Li and Gregory (1974), adapted to varying pore-water viscosity (Out and Los, 1980) and sediment tortuosity (McDuff and Ellis, 1979), and a mobility ratio for diffusion of the light and heavy Cl isotopes of 1.0023 (Eggenkamp et al., 1995). Squares with error bars = measured ³⁷Cl values ±1 STD.