Journal article
New speleothem data from molinos and ejulve caves reveal holocene hydrological variability in northeast iberia
A Moreno, C Pérez-Mejías, M Bartolomé, C Sancho, I Cacho, H Stoll, A Delgado-Huertas, J Hellstrom, RL Edwards, H Cheng
Quaternary Research United States | CAMBRIDGE UNIV PRESS | Published : 2017
DOI: 10.1017/qua.2017.39
Abstract
New speleothem records from northeastern Iberian caves provide data to explore the climatic patterns during the Holocene. We present δ13C and Mg/Ca from three speleothems from two different caves located in the Iberian Range allowing replication of the climatic signal for several millennia. Through the integration of those stalagmites covering since the Holocene onset to 2 ka, the early Holocene (11.7-8.5 ka) appears as the wettest interval. A marked change towards aridity is observed during the middle Holocene (8.5-4.8 ka) and an increase of humidity afterwards (4.8-2 ka). This three-part pattern, contrasting with other Iberian sequences, seems to be associated with the different role that ..
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Funding Acknowledgements
The funding for this study derives from GA-LC-030/2011, GA-LC-021/2008, CGL2010-16376, CGL2009-10455/BTE, CTM2013-48639-C2-1-R, and CGL2016-77479-R projects. This is a contribution by Geomorfologia y Cambio Clobal and PaleoQ groups (Aragon Government). We are indebted to Emilio and Javier from the Molinos council and Joaquin Perona (UB) for the analyses on calcite samples. Cesar Azorin and Paleo-IPE group members are acknowledge for fruitful discussions. We are also grateful to J. Fohlmeister, one anonymous reviewer, and the associated editor M. Lachniet for their helpful comments that greatly improved the manuscript.