Data of Constraining marine silicate alteration in volcanic material-rich continental margin sediments since the last Glacier Maximum evidenced by stable Si isotopes

δ30Si_DSi values of porewater and Al, Si concentrations and δ30Si values of leachates. Si and Al concentrations of the leachates were eventually reported as per gram of dry weight of sediments. The 2SD represents 2 standard deviations (2sd) from 5 bracketed values.本数据集涵盖孔隙水的δ³⁰Si_DSi（溶解态硅的δ³⁰硅同位素比值）、浸提液中铝（Al）与硅（Si）的浓度，以及浸提液的δ³⁰硅同位素值。浸提液中的硅、铝浓度最终以每克沉积物干重为单位进行报告。此处的2SD指代基于5个括号标注数值计算得到的2倍标准偏差。