Figure F5. Concentrations of various dissolved species in interstitial waters from Site 1228. A. Alkalinity. B. Dissolved organic carbon (DIC). C. Manganese. D. Iron. E. Total sulfide. F. Sulfate. G. Barium. H. Methane. I. Acetate and formate. J. Ammonium. K. Phosphate. L. Silica. M. Chloride. N. Strontium. O. Lithium. P. Hydrogen.