Interstitial water chemistry at DSDP Leg 82 Holes

Interstitial waters were collected at only two sites during Leg 82, Sites 558 and 563. Only very small changes in dissolved calcium and magnesium occur, presumably resulting from reactions in the underlying basement basalts. Dissolved strontium profiles indicate maxima, which can be understood in terms of carbonate recrystallization processes. Data on Sr/Ca in carbonates cannot be used to estimate the extent of recrystallization that has occurred in these sediments.大洋钻探第82航次期间，仅在558号站位与563号站位两个点位采集了孔隙水。溶解态钙与镁仅发生极细微的含量变化，推测其源于下伏基底玄武岩中的反应过程。溶解态锶剖面呈现峰值特征，该现象可通过碳酸盐重结晶作用过程得到合理解释。无法借助碳酸盐中的Sr/Ca比值数据，估算该套沉积物中已发生的重结晶作用程度。