Pore fluid sulfate, calcium and magnesium concentrations in ocean drilling sites 981–984, 925–929 and 803–807 are modeled to estimate the rates of sulfate reduction and carbonate precipitation/dissolution. These sites represent scenarios where the sulfate reduction rate is high, moderate, and low. Results show that the rate of carbonate precipitation decreases with decreasing sulfate reduction rate. When sulfate reduction rate is sufficiently low carbonate minerals dissolve. Sulfate reduction produces H⁺ and bicarbonate which compete in driving carbonate minerals to dissolve or precipitate. The results suggest that the carbonate reactions are mainly driven by the produced H⁺ when sulfate reduction rate is low, and by the produced bicarbonate when the sulfate reduction rate is high.

对海洋钻井站点981-984、925-929和803-807中的孔隙液中硫酸盐，钙和镁的浓度进行了建模，以估算硫酸盐的减少率和碳酸盐的沉淀/溶解速度。这些站点代表了硫酸盐还原率高，中和低的场景。结果表明，碳酸盐沉淀速率随着硫酸盐还原速率的降低而降低。当硫酸盐还原速率足够低时，碳酸盐矿物溶解。硫酸盐还原产生H ⁺和碳酸氢盐，它们竞争驱使碳酸盐矿物溶解或沉淀。结果表明，当硫酸盐还原速率低时，碳酸盐反应主要由产生的H ⁺驱动；当硫酸盐还原速率高时，碳酸盐反应主要由产生的碳酸氢盐驱动。