Model results for the Ebro (black lines) and Duero (red lines) basins from −10 to +20 Myr. (A) Mean erosion rate Er of the two sedimentary basins, showing a trend currently decreasing in the Ebro and increasing in the Duero. (B) Mean sedimentation rates Sr in the delta areas. The inset shows the onset of sedimentation at the Duero delta and synchronous initiation of the incision of the basin. (C) Volume of sediment in the deltas, showing a current stabilization in the Ebro delta contrasting with the increasing volume of the Duero delta (diamonds indicate published data; Table DR-2).