Onset of millennial climate variability with the intensification of Northern Hemisphere glaciation

• 成果类型: Article
• 署名作者: Hodell, David A.; Abrantes, Fatima; Alvarez Zarikian, Carlos A.; Herbert, Timothy D.; Du, Mengyao; Crowhurst, Simon J.; Mleneck-Vautravers, Maryline; Rolfe, James E.; Chen, Xi; Brooks, Hannah L.; Clark, William B.; Dauchy-Tric, Louise F. B.; Dos Santos Rocha, Viviane; Flores, Jose-Abel; Hines, Sophia K. V.; Huang, Huai-Hsuan May; Ikeda, Hisashi; Kaboth-Bahr, Stefanie; Kuroda, Junichiro; Link, Jasmin M.; Mcmanus, Jerry F.; Mitsunaga, Bryce A.; Yobo, Lucien Nana; Pallone, Celeste T.; Pang, Xiaolei; Peral, Marion Y.; Salgueiro, Emilia; Sanchez, Saray; Verma, Komal; Wu, Jiawang; Xuan, Chuang; Yu, Jimin; Haygood, Lauren A.; Liebrand, Diederik; Magalhaes, Vitor; Alonso-Garcia, Montserrat; Duque-Castano, Monica; Ferreira, Fernanda; Freitas, Mafalda; Cordeiro, Livia Gebara; Gil, Isabelle; Gonzalez-Martin, Maria; Lopes, Ana; Lopes, Cristina; Margari, Vasiliki; Martin-Garcia, Laura; Matos, Lelia; Mega, Aline; Molina, Giulia; Naughton, Filipa; Oliveira, Dulce; Rebotim, Andreia; Rodrigues, Teresa; Santana, Andre; Trejos-Tamayo, Raul; Tzedakis, Polychronis C.
• 署名单位: University of Cambridge; Instituto Portugues do Mar e da Atmosfera; Universidade do Algarve; Texas A&M University System; Texas A&M University College Station; Brown University; RWTH Aachen University; University of Alabama System; University of Alabama Tuscaloosa; Universite Paris Cite; Northern Illinois University; University of Salamanca; Woods Hole Oceanographic Institution; Princeton University; Yamaguchi University; Free University of Berlin; University of Tokyo; Ruprecht Karls University Heidelberg; Massachusetts Institute of Technology (MIT); Harvard University; Harvard University; Texas A&M University System; Texas A&M University College Station; China University of Geosciences; Centre National de la Recherche Scientifique (CNRS); Universite de Bordeaux; CNRS - National Institute for Earth Sciences & Astronomy (INSU); Oregon State University; Banaras Hindu University (BHU); Sun Yat Sen University; University of Southampton; NERC National Oceanography Centre; Laoshan Laboratory; Australian National University; Oklahoma State University System; Oklahoma State University - Stillwater; University of London; University College London; University of London; University College London; CSIC - Centro Mediterraneo de Investigaciones Marinas y Ambientales (CMIMA); Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Instituto de Ciencias del Mar (ICM); Universidad de Caldas
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8075; 1095-9203
• DOI: 10.1126/science.ady7970
• 发表日期: 2026-04-02
• 页码: 57-62
• 关键词: IBERIAN MARGIN; time-scale; atlantic; calibration; pliocene; record; MILANKOVITCH; transitions; seasonality; provenance

摘要

The Quaternary Period (the past 2.58 million years) was characterized by the waxing and waning of large ice sheets in the Northern Hemisphere. Using sediment sequences from the Iberian Margin, we have demonstrated that expansion of Northern Hemisphere ice sheets around 2.7 million years ago was accompanied by the emergence of millennial climate variability (MCV) during glacial periods. The onset of MCV at similar to 2.7 million years ago was heralded by isolated precursor events, followed by multiple millennial climate oscillations at similar to 2.5 million years ago. These events coincided with deposition of ice-rafted detritus in the North Atlantic, suggesting a role for marine-terminating ice sheets. Once established, MCV became an intrinsic feature of glacial climates of the Quaternary. Our findings underscore the profound impact Northern Hemisphere glaciation had on climate variability across multiple timescales.