Flood response to rainfall variability during the last 2000 years inferred from the Taravilla Lake record (Central Iberian Range, Spain)

Ana Moreno, Blas L. Valero-Garcés, Penélope González-Sampériz, Mayte Rico

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A sedimentological, geochemical and palynological study of the Taravilla Lake sequence (Central Iberian Range, NE Spain) provides a detailed record of allochthonous terrigenous layers that intercalate within the lacustrine sediments over the last 2000 years. These terrigenous layers are interpreted as the result of extreme hydrological events that caused higher clastic input to the basin. Anthropogenic influence caused by fires or deforestation is rejected as the main factor generating these layers because human impact, inferred from the pollen reconstruction, was minimal when the terrigenous layers reached their greatest frequency. The reconstructed occurrence of these events in the Taravilla Lake record is coherent with the paleoflood history of the Tagus River, characterized by a notable increase of extreme events at the beginning of the Little Ice Age. The Taravilla record suggests a relationship between the occurrence of extreme hydrological events, solar variability, and the North Atlantic Oscillation for the NE Iberian Peninsula.

Original languageEnglish (US)
Pages (from-to)943-961
Number of pages19
JournalJournal of Paleolimnology
Issue number3
StatePublished - Oct 2008

Bibliographical note

Funding Information:
Acknowledgements Financial support for research at Taravilla Lake was provided by the Spanish Inter-Ministry Commission of Science and Technology (CICYT), through the projects LIMNOCLIBER (REN2003-09130-C02-02) and IBERLIMNO (CGL2005-20236-E/CLI). A. Moreno acknowledges funding from the European Commission’s Sixth Framework Program (Marie Curie Outgoing International Fellowships, proposal 021673-IBERABRUPT). We are indebted to Doug Schnur-renberger, Anders Noren and Mark Shapley (LRC, University of Minnesota) for the 2004 coring expedition, Erik Brown (LLO, Duluth, University of Minnesota) for his technical help on the XRF core scanner, and the Spanish National Meteorological Institute (INM) for providing the climatological data. We thank Gerardo Benito for his comments on an earlier version of the manuscript and the Tagus River paleoflood reconstruction data. We thank two

Copyright 2008 Elsevier B.V., All rights reserved.


  • Little Ice Age
  • Paleoflood reconstructions
  • Solar variability
  • XRF core scanner


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