Fig. 1.

Comparison between Greenland NGRIP ice-core and Seso speleothem δ¹⁸O records. (A, C) Greenland NGRIP (25) and Seso speleothem δ¹⁸O records (this study), respectively. (B) Comparison between NGRIP (blue) and Seso (gray) δ¹⁸O records. The error bars show the typical age error of each YD record (color-coded). The two vertical red dashed lines depict the initial onset (the abrupt drop at ∼12,870 ± 30 B.P.) and initial termination (initiated at ∼11,700 ± 40 B.P.) of the YD based on correlation of distinct features at subcentennial precision. The gray bar shows the YD termination excursion from ∼11,700 to ∼11,610 B.P. Kyr BP, 1 × 10³ B.P.