Figure F24. Interstitial water profiles for Site 1212. A. Potassium. B. Calcium. C. Magnesium. D. Sr/Ca ratios. E. Strontium. F. Lithium. It is likely that the potassium, magnesium, and calcium concentrations are being influenced by basement reactions, although other processes appear to be controlling downcore magnesium concentrations as well (see "Potassium, Calcium, Magnesium, Strontium, and Lithium," , in "Inorganic Geochemistry"). Little carbonate dissolution or recrystallization appears to be occurring below ~50 mbsf. Low sample volume at 141.6 mbsf precluded a complete suite of analyses.

Figure F24. Interstitial water profiles for Site 1212. A. Potassium. B. Calcium. C. Magnesium. D. Sr/Ca ratios. E. Strontium. F. Lithium. It is likely that the potassium, magnesium, and calcium concentrations are being influenced by basement reactions, although other processes appear to be controlling downcore magnesium concentrations as well (see "Potassium, Calcium, Magnesium, Strontium, and Lithium" in "Inorganic Geochemistry"). Little carbonate dissolution or recrystallization appears to be occurring below ~50 mbsf. Low sample volume at 141.6 mbsf precluded a complete suite of analyses.