Abrupt climate changes during Termination III in Southern Europe

Pérez-Mejías, Carlos ; Moreno, Ana (Universidad de Zaragoza) ; Sancho, Carlos (Universidad de Zaragoza) ; Bartolomé, Miguel ; Stoll, Heather ; Cacho, Isabel ; Cheng, Hai ; Edwards, R. Lawrence

Resumen: The Late Quaternary glacial–interglacial transitions represent the highest amplitude climate changes over the last million years. Unraveling the sequence of events and feedbacks at Termination III (T-III), including potential abrupt climate reversals similar to those of the last Termination, has been particularly challenging due to the scarcity of well-dated records worldwide. Here, we present speleothem data from southern Europe covering the interval from 262.7 to 217.9 kyBP, including the transition from marine isotope stage (MIS) 8 to MIS 7e. High-resolution d13C, d18O, and Mg/Ca profiles reveal major millennial-scale changes in aridity manifested in changing water availability and vegetation productivity. uranium–thorium dates provide a solid chronology for two millennial-scale events (S8.1 and S8.2) which, compared with the last two terminations, has some common features with Heinrich 1 and Heinrich 2 in Termination I (T-I).

Idioma: Inglés

DOI: 10.1073/pnas.1619615114

Año: 2017

Publicado en: Proceedings of the National Academy of Sciences 114, 38 (2017), 10047-10052
ISSN: 0027-8424

Factor impacto JCR: 9.504 (2017)

Categ. JCR: MULTIDISCIPLINARY SCIENCES rank: 5 / 64 = 0.078 (2017) - Q1 - T1

Factor impacto SCIMAGO: 6.092 - Multidisciplinary (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2016-77479-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTM2013-48639-C2-2-R

Tipo y forma: Article (Published version)

Área (Departamento): Área Geodinámica Externa (Dpto. Ciencias de la Tierra)