vallée (1) itinéraire (1) fleuve (1) recherche (1) papier (1) migration humaine (1) établissement humain (1) âge (1) Asie (1) The Valley (1) République populaire de Chine (1) Area (1) Antiquities, Prehistoric (1) Area (1) Work (1) Science (1) Research (1) Paper (1) Mountains (1) Prehistoric peoples (1) Loess (1) Hypothesis (1) Human settlements (1) East Asia (1) Chronology (1) Chinese (1) Age (1) Universe (1) Optically stimulated luminescence dating (1) Chronology (1)