vallée (1) fleuve (1) recherche (1) région (1) archipel (1) île (1) géomorphologie (1) datation (1) sujet (1) profession (1) Philippines (1) Composition (1) Implements (1) Area (1) Showing (1) Dating (1) Methods (1) Antiquities, Prehistoric (1) Nineteen seventies (1) Rhinoceros (Genus) (1) Electron spin resonance dating (1) Minerals (1) Area (1) Origin (1) Work (1) Tools (1) Surfaces (1) Science (1) Rhinoceroses (1) Research (1)