TY - JOUR
T1 - Protracted ocean circulation slowdown drove exceptional ice-sheet melting during ice age termination IV
AU - Hu, Hsun Ming
AU - Marino, Gianluca
AU - Sánchez Goñi, María Fernanda
AU - Rohling, Eelco
AU - Rodrigues, Teresa
AU - Pérez-Mejías, Carlos
AU - Ren, Qiuping
AU - Jiang, Xiuyang
AU - Michel, Véronique
AU - Valensi, Patricia
AU - Starnini, Elisabetta
AU - Zunino, Marta
AU - Salonen, J. Sakari
AU - Hsieh, Chieh Ju
AU - Tan, Liangcheng
AU - Chaigneau, Baptiste
AU - Chevalier, Maud
AU - Shen, Chuan Chou
N1 - Publisher Copyright:
© The Author(s) 2026.
PY - 2026/12
Y1 - 2026/12
N2 - Glacial terminations stand out for their high rates of sea-level rise, particularly during meltwater pulses. Termination IV (T-IV; ~340,000 years before present) is a prominent example, with sea level rising at up to ~5 m per century. Due to sparse absolute age constraints on marine records, the causes for the high rates of sea-level rise at T-IV remain elusive. In this work, we provide a speleothem chronology from northern Italy, which we transpose to North Atlantic marine records. We infer that the high T-IV sea-level rise rate likely relates to a feedback whereby protracted meltwater release caused enhanced ocean heat storage, followed by heat release upon circulation recovery, driving additional ice-sheet collapse. This analysis highlights the critical role of oceanic feedbacks in driving exceptional rates of sea-level rise during terminations.
AB - Glacial terminations stand out for their high rates of sea-level rise, particularly during meltwater pulses. Termination IV (T-IV; ~340,000 years before present) is a prominent example, with sea level rising at up to ~5 m per century. Due to sparse absolute age constraints on marine records, the causes for the high rates of sea-level rise at T-IV remain elusive. In this work, we provide a speleothem chronology from northern Italy, which we transpose to North Atlantic marine records. We infer that the high T-IV sea-level rise rate likely relates to a feedback whereby protracted meltwater release caused enhanced ocean heat storage, followed by heat release upon circulation recovery, driving additional ice-sheet collapse. This analysis highlights the critical role of oceanic feedbacks in driving exceptional rates of sea-level rise during terminations.
UR - https://www.scopus.com/pages/publications/105043501982
U2 - 10.1038/s41467-026-73733-6
DO - 10.1038/s41467-026-73733-6
M3 - 文章
C2 - 42303605
AN - SCOPUS:105043501982
SN - 2041-1723
VL - 17
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 5675
ER -
可持续发展目标 14 水下生物