(Table 1) Interstitial water chemistry at DSDP Leg 59 Holes@en

Interstitial water studies of samples from Leg 59 show small concentration variations from sea water in Sites 447 and 451 but very large concentration changes in Site 450. A general analysis of calcium concentration gradients in this region is presented, which emphasizes the anomaly presented by the interstitial water chemistry of Sites 53 and 450 in the Parece Vela Basin. An analysis of concentration changes in Ca, Mg, Sr, Li, Mn, and Si indicates that reaction zones associated with high concentrations of dissolved silica can account for these observations.针对大洋钻探第59航次（Leg 59）采集的样品开展的孔隙水研究结果显示：447与451站位的孔隙水溶质浓度与海水相比仅存在小幅波动，而450站位则出现了极为显著的浓度变化。本研究对该区域的钙浓度梯度开展了综合分析，重点探讨了帕里西维拉海盆（Parece Vela Basin）内53站位与450站位的孔隙水化学异常特征。针对钙（Ca）、镁（Mg）、锶（Sr）、锂（Li）、锰（Mn）及硅（Si）的浓度变化分析表明，与高浓度溶解硅相关的反应带可合理解释上述观测结果。