Age and significance of the Quaternary cemented deposits of the Duje Valley (Picos de Europa,Northern Spain) |
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| Authors: | Elisa Villa Heather Stoll Pedro Farias Luna Adrados R. Lawrence Edwards Hai Cheng |
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| Affiliation: | 1. Departamento de Geología, Universidad de Oviedo, Oviedo, 33005, Spain;2. Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, USA;3. Institute of Global Environmental Change, Xian Jiaotong University, Xian 710049, China |
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| 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. |
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