Ocean-atmosphere interconnections from the last interglacial to the early glacial: An integration of marine and cave records in the Iberian region

J Torner; I Cacho; A Moreno; FJ Sierro; B Martrat; J Rodriguez-Lazaro; J Frigola; P Arnau; Á Belmonte; J Hellstrom; H Cheng; RL Edwards; H Stoll

Journal article

Ocean-atmosphere interconnections from the last interglacial to the early glacial: An integration of marine and cave records in the Iberian region

J Torner, I Cacho, A Moreno, FJ Sierro, B Martrat, J Rodriguez-Lazaro, J Frigola, P Arnau, Á Belmonte, J Hellstrom, H Cheng, RL Edwards, H Stoll

Quaternary Science Reviews | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2019

DOI: 10.1016/j.quascirev.2019.106037

Abstract

This study explores the climatic variability in the Iberian Peninsula (IP) and its surrounding seas from 140 to 65 kyr BP. Marine sediment cores and cave speleothems are used to reconstruct changes in sea surface water conditions, deep sea current intensities and atmospheric moisture availability based on stable isotopes, trace elements, grain size and XRF-elemental analysis. Oxygen isotopes in both terrestrial and oceanic archives recorded a large-scale precessional climatic rhythm that suggests a common modulation. This signal is interpreted as changes of the isotopic composition in the rainwater source area that is later transmitted into the cave. In terms of millennial-scale variability,..

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University of Melbourne Researchers

John Hellstrom Author

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Grants

Awarded by Generalitat de Catalunya

Funding Acknowledgements

This research was financially supported by CHIMERA (CTM201675411-R) and OPERA (CTM2013-48639-C2-1-R) projects, both founded by MINECO, Spain. We thank Generalitat de Catalunya Grups de Recerca Consolidats for grant 2017 SGR 315 to GRC Geociencies Marines. We are grateful to M. Guart (Dept. de Dinamica de la Terra i de l'Ocea, Universitat de Barcelona), M. Romero, T. Padra, B. Baena, J. Perona (Serveis Cientifico-Tecnics, Universitat de Barcelona) and A. Pascual (Dept. of Stratigraphy and Paleontology, University of Basque Country UPV/EHU) for their help with the laboratory work; to X. Rayo for his collaboration with the artwork of maps. I. Cacho thanks the ICREA-Academia programme from the Generalitat de Catalunya. B. Martrat acknowledges support from the CSIC - Ramon y Cajal postdoctoral programme RYC-2013-14073. P. Arnau acknowledges support from the Ciutadella Town Hall. Judit Torner benefited from an FPI-fellowship of MINECO.