Interplay of Multiple Sediment Routing Systems Revealed by Combined Sandstone Petrography and Heavy Mineral Analysis (HMA) in the South Pyrenean Foreland Basin

Combined sandstone petrography and heavy mineral analysis allow to decipher different sediment routing systems that could not be resolved by one method alone in the South Pyrenean foreland basin. We apply this approach deltaic alluvial deposits of southern part Jaca basin, time equivalent nearby Ainsa Ebro basins, order unravel evolution source areas fluvial drainage from Eocene Miocene. Our study allows identification four petrofacies five heavy-mineral suites, which evidence interplay distinct systems, controlled emergence tectonic structures. Two axially-fed east coexisted Campodarbe Formation basin were progressively replaced west transverse-fed sourced northern areas. In late stages evolution, autochthonous piggy-back received detritus directly north Axial Zone Basque Pyrenees. Coupling with provenance challenging existing model dispersal, highlighting relevance source-to-sink studies.