TEMPORAL AND DEPTH STUDY OF ALKALINE EARTH CHLORINITY RATIOS IN SEAWATER AT A SINGLE STATION SOUTH OF PUERTO RICO 1

Results of an 11-month study of calcium, magnesium, and strontium chlorinity ratios at a single station south of Puerto Rico are reported for depths down to 2,500 m. No temporal variations for any of these ratios were apparent within the precision of the analytical techniques used; however, careful evaluation of the variation in Sr:Clppt must await more precise analysis. There was some indication that Ca:Clppt was lower in surface and near surface waters than below 500 m. Conversely, there was evidence that the Mg:Clppt was higher in upper waters than below 500 m.