Figure F15. Interstitial dissolved boron (B) and strontium (Sr2+) concentrations at Sites (A) 1248 and (B) 1244. At Site 1244, boron is enriched in the zone between 25 and 100 mbsf probably because of the release of boron from aragonite as it transforms to calcite during carbonate diagenesis. Note that strontium shows no increase in this zone. At Site 1248, both boron and strontium are enriched in the zone below 25 mbsf and show very similar profiles. BSR = bottom simulating reflector, Hor. A = Horizon A.

Figure F15. Interstitial dissolved boron (B) and strontium (Sr²⁺) concentrations at Sites (A) 1248 and (B) 1244. At Site 1244, boron is enriched in the zone between 25 and 100 mbsf probably because of the release of boron from aragonite as it transforms to calcite during carbonate diagenesis. Note that strontium shows no increase in this zone. At Site 1248, both boron and strontium are enriched in the zone below 25 mbsf and show very similar profiles. BSR = bottom simulating reflector, Hor. A = Horizon A.