Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6446599 | Quaternary Science Reviews | 2014 | 10 Pages |
Abstract
New evidence in the NW region of the Iberian Peninsula (â¼42°N 6°W) of a glacial advance coeval with the global Last Glacial Maximum (LGM) of the Marine Isotope Stage 2 has been identified through a dataset of exposure ages based on 23 10Be concentration measurements carried out on boulder samples taken from a set of latero-frontal moraines. Results span the interval 19.2-15.4 10Be ka, matching the last deglaciation period when Iberia experienced the coldest and driest conditions of the last 25 ka, and are consistent with Lateglacial chronologies established in other mountain regions from SW Europe. The extent of the LGM stade identified in this work is similar to the local maximum ice extent stade recorded and dated as prior to 33 ka using radiocarbon and optically stimulated luminescence. This work showcases how multiple-dating approaches and detailed geomorphological mapping are required to reconstruct realistic palaeoglacier evolution models.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geology
Authors
Laura RodrÃguez-RodrÃguez, Montserrat Jiménez-Sánchez, MarÃa José DomÃnguez-Cuesta, Vincent Rinterknecht, Raimon Pallà s, Didier Bourlès, Blas Valero-Garcés,