Figure F17. Concentration depth profiles. The concentrations of (A) Na⁺, (E) Sr²⁺, and (F) SO₄^2- have been normalized by chlorinity to compensate for the concentration increase with increasing salinity. Unlike at previous sites, the excess concentrations of (B) Ca²⁺, (C) Mg²⁺, and (D) K⁺ are not normalized by seawater but refer to the actual loss from the brine. Excess concentrations are calculated as X_i - X₀ × Cl_i^-/Cl₀^-, where X_i represents the concentration of the element at a certain depth, and X₀ refers to the normal seawater concentration of this element. Note that data from Site 1132 display a sodium/chlorinity ratio anomaly similar to that at Sites 1127 and 1131. For discussion, see "Inorganic Geochemistry" in the "Site 1131" chapter.