EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Origin and propagation of sedimentary sequences throughout the Escanilla fluvial routing system (South Pyrenean foreland basin)

Luis Valero1, Elisabet Beamud2,3, Miguel Garcés3,4, Andreu Vinyoles3,4, Nikhil Sharma1, Stephen E. Watkins1, Maxime Tremblin1, Cai Puigdefàbregas3, François Guillocheau5, Alex C. Whitakker6, Miguel López-Blanco3,4, Pau Arbués3,4, and Sébastien Castelltort1
Luis Valero et al.
  • 1Département des Sciences de la Terre, Université de Genève, Rue des Maraîchers 13, CH-1205, Genève
  • 2Laboratori de Paleomagnetisme de Barcelona (CCiTUB-CSIC), Solé i Sabarís s/n, 08028, Barcelona
  • 3Geomodels Research Institute, Marti i Franqués s/n, 08028, Barcelona
  • 4Departament de Dinàmica de la Terra i l’Oceà, Facultat de Ciències de la Terra, Marti i Franqués s/n, 08028, Barcelona
  • 5Département des Geosciences, Université de Rennes 1/CNRS (UMR 6118), Rennes
  • 6Department of Earth Science and Engineering, Imperial College London, SW7 2AZ London

During middle Eocene, the Escanilla fluvial system transported and deposited material from East to West in the southern Pyrenees foreland basin. The paleogeography and sedimentology of the source to sink system is well established. The temporal framework is made of scattered low resolution magnetostratigraphies, and a robust temporal framework in the most distal (Olson) and most proximal (Sis) parts of the system. We built a new high resolution magnetostratigraphy from the middle part of the system, the Lascuarre section. The correlation of Lascuarre with the high resolution magnetostratigraphies and the integration of these data with other available chronological constraints results into a robust complete temporal framework from source to sink.

Sedimentological analyses of the Lascuarre section allow recognizing a set of sedimentary sequences throughout the record. Here we present the result of the analyses, and discuss the relative weight of the different forcing. Particularly, we elucidate the role of tectonics in relation to subsidence distribution patterns, and also the distinct expression of climate. Eventually, we identify and explore the signal propagation mechanisms of climate aberrations and of quasi-regular orbital variations along the routing system.

How to cite: Valero, L., Beamud, E., Garcés, M., Vinyoles, A., Sharma, N., Watkins, S. E., Tremblin, M., Puigdefàbregas, C., Guillocheau, F., Whitakker, A. C., López-Blanco, M., Arbués, P., and Castelltort, S.: Origin and propagation of sedimentary sequences throughout the Escanilla fluvial routing system (South Pyrenean foreland basin), EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-19537,, 2020

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Display material version 1 – uploaded on 08 May 2020
  • CC1: Comment on EGU2020-19537, Stephan Toby, 08 May 2020

    Hi Luis,

    I'm very interested in your slides, but unfortunately couldn't attend the chat. What data did you run the MTM on and what's your interpretation of the result?

    Looking forward to reading the paper!


    Stephan Toby