Figure F4. Silicate and phosphate patterns in subsurface waters of the South Atlantic (from Herzfeld and Berger, 1993). A. Silicate concentrations at 100-m depth (µM/kg). B. Phosphate concentrations at 100-m depth (µM/kg).

Figure F4. Silicate and phosphate patterns in subsurface waters of the South Atlantic (from Herzfeld and Berger, 1993). A. Silicate concentrations at 100-m depth (µM/kg). B. Phosphate concentrations at 100-m depth (µM/kg).