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Age and significance of the Quaternary cemented deposits of the Duje Valley (Picos de Europa, Northern Spain)

Published online by Cambridge University Press:  20 January 2017

Elisa Villa*
Affiliation:
Departamento de Geología, Universidad de Oviedo, Oviedo, 33005, Spain
Heather Stoll
Affiliation:
Departamento de Geología, Universidad de Oviedo, Oviedo, 33005, Spain
Pedro Farias
Affiliation:
Departamento de Geología, Universidad de Oviedo, Oviedo, 33005, Spain
Luna Adrados
Affiliation:
Departamento de Geología, Universidad de Oviedo, Oviedo, 33005, Spain
R. Lawrence Edwards
Affiliation:
Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, USA
Hai Cheng
Affiliation:
Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, USA Institute of Global Environmental Change, Xian Jiaotong University, Xian 710049, China
*
*Corresponding author at: Universidad de Oviedo, Departamento de Geología, 33005 Oviedo, Spain. Fax: + 34 985103103. E-mail address:[email protected] (E. Villa).

Abstract

Cemented calcareous breccias appear in the Picos de Europa (Cantabrian Mountains, Spain) resting on glacially abraded surfaces and covered by moraines. U/Th dating of the calcite coating the clasts was successful in two samples, the oldest one indicating that the breccias accumulated during or prior to Marine Isotope Stage (MIS) 11, and the youngest indicating later cementation during MIS 8. The former introduces a limit for the age of the glaciation preceding the breccias, which cannot correspond to an event younger than MIS 12. This is the oldest absolute age so far obtained for intercalated glacial/interglacial deposits of the Iberian Peninsula.

Type
Research Article
Copyright
University of Washington

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