Calcium carbonate and stable isotope composition of sediment core V19-30

CaCO3 from Ninkovich and Shackleton (1975). Stable isotopes from Shackleton and Pisias (1985).碳酸钙（CaCO₃）数据源自Ninkovich与Shackleton（1975）的研究；稳定同位素数据源自Shackleton与Pisias（1985）的研究。