Itinerary 7. Elevated Ranges and Interior Basins of the Axial Zone: The Upper Cerdagne Basin, Capcir Basin, and their Surrounding Massifs
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5 juin 2022
- handle: 10670/1.7j0755
- isbn: 978-3-030-84266-6
- hal: hal-03995933
- doi: 10.1007/978-3-030-84266-6_12
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info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-030-84266-6_12
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Marc Calvet et al., « Itinerary 7. Elevated Ranges and Interior Basins of the Axial Zone: The Upper Cerdagne Basin, Capcir Basin, and their Surrounding Massifs », HAL-SHS : archéologie, ID : 10.1007/978-3-030-84266-6_12
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Résumé
Itinerary 7 aims to extend the understanding of Neogene landscape evolution already partly gained from the Roussillon and Conflent basins. Focus is on the sediment record contained in the more westerly basins of Cerdagne and Capcir, which exclusively display late Miocene stratigraphic sequences until now not encountered among the extensional basins of itineraries 1–6. Another highlight is the widespread population of erosion surfaces that either grade to the margins of these interior clastic basins (generations P1 and P2) or have been preserved in summit positions among the surrounding massifs of the Axial Zone. In either case, their occurrence and excellent state of preservation in this elevated core of the eastern Pyrenees can be explained by its relative remoteness from the Aquitaine, Ebro and Mediterranean base levels. A third focus is on the impact of Pleistocene glaciation among the northern massifs. Quaternary glacial chrononology is particularly well documented because sequences of moraines and glacifluvial terraces are well preserved across the intermontane basin floors.