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A new completely dated source-to-sink profile

AuthorsValero, Luis; Beamud, Elisabet ; Garcés, Esther ; Sharma, N.; Tremblin, Maxime; Watkins, S. E.; Guillocheau, F.; Whittaker, A. C.; Puigdefàbregas, Cai; López-Blanco, M.; Vinyoles, Andreu; Arbués, P.; Castelltort, S.
Issue Date22-Nov-2019
AbstractHere we present the results of a new magnetostratigraphy for a middle Eocene record of the South Pyrenean foreland basin in Spain. The new Lascuarre section (ca. 650 m thick) provides new ages for fluvial (Capella Fm.), lacustrine (Escanilla Limestone), and fluvial to alluvial (Escanilla Fm.) systems. We show that the Capella Fm is of Lutetian age and the Escanilla Fm. is Bartonian. These results fill a chronostratrigraphic gap in the sedimentary record of the Tremp-Graus- Ainsa basin. Integration of our Lascuarre chronology with other magnetostratigraphic studies in the region allows for a complete snapshot of the entire source to sink system. This new data permits a comprehensive study of the propagation of upstream and downstream signals. Due to the quality of data, outcrops, and accessibility, our new correlation profile opens the possibility to study the source-to-sink expression of multiple drivers, and constitutes a, de facto, giant natural laboratory. An evaluation of the impact of the orbital cycles in the complete source-to-sink system is also being carried out. If successful, we will have an enhanced understanding of the mechanisms by which the climatic signals can be transferred along the sediment routing systems, and a high-resolution chronology.
Publisher version (URL)https://naturwissenschaften.ch/organisations/geosciences/swiss_geoscience_meetings/sgm2019_fribourg
Appears in Collections:(ICTJA) Comunicaciones congresos
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