Figure F20. Vertical profiles of interstitial water measurements at Site 1143. A. Chloride. B. Salinity. C. Sulfate. D. Phosphate. E. Ammonium. F. Alkalinity. G. Silica. H. Potassium. I. Magnesium by ion chromatography and magnesium by titration (open diamonds). J. Calcium by ion chromatography and calcium by titration (open diamonds). K. Calcium vs. magnesium. L. Lithium. M. Strontium concentrations in Hole 1143A (solid circles) and Hole 1143C (open circles).