Figure 7. Mean chloride concentrations and ¹⁸O values for the upper 30 mbsf, Sites 1003-1007. Note the decrease in the ¹⁸O as the sites become farther from the platform margin. Chloride data are from Eberli, Swart, Malone, et al. (1997). Error bars represent ±1 standard deviation of the mean of the values in the upper 30 mbsf.