Seawater Incursion Events and Enhanced Lacustrine Organic Carbon Sequestration during the Middle Eocene Climatic Optimum

strontium isotopes and trace elements in carbonate components, major elements in silicate components, and organic geochemical data碳酸盐组分（carbonate components）中的锶同位素（strontium isotopes）与微量元素（trace elements）、硅酸盐组分（silicate components）中的常量元素（major elements），以及有机地球化学数据（organic geochemical data）