geoaccumulation Argentina 16 sedimentation 8 San Juan [Argentina] 5 Anthropic activity 4 Beaches 4 Conoidea 4 Cretaceous 4 Erosion 4 Intramontane basins 4 Jachal River 4 Necochea 4 Patagonia 4 Piedmonts 4 Precordillera 4 Protection 4 Quequen Grande Estuary 4 Quequén port 4 Sedimentary models 4 alluvial fan 4 beach erosion 4 breccia 4 channel flow 4 clastic sediment 4 cliff 4 coastal engineering 4 coastal protection 4 colluvial deposit 4 conglomerate 4 estuarine dynamics 4