Fig. 4: Reconstruction of seawater δ7Li based on dolostones over the Neogene.
From: Dolostone as a reliable tracer of seawater lithium isotope composition
Dolostone data in this study are shown in red circles, foraminifera data3 are in grey triangles, and brachiopod records10, 11, 22 are in blue squares. The red and grey lines show the best-estimated seawater value in 10 Myr intervals using the Locally Weighted Regression (LOWESS) curve fitting based on dolostone and foraminifera data3, respectively. The red and grey fields indicate the upper and lower bounds of 95% confidence levels based on dolostone and foraminifera records, respectively. The vertical error bars (2 SD) for dolostone, foraminifer and brachiopod records are 1.1‰29, varied3, and 1‰10, respectively. The horizontal error bars show estimated age ranges of the brachiopod records10.
