Description and characterization of the natural alteration of chert artefacts from Atapuerca (Burgos, Spain), Cansaladeta (Tarragona, Spain) and Orgnac 3 (Ardèche, France) Lucía López-Polín

https://www.academia.edu/78294189/Description_and_characterization_of_the_natural_alteration_of_chert_artefacts_from_Atapuerca_Burgos_Spain_Cansaladeta_Tarragona_Spain_and_Orgnac_3_Ard%C3%A8che_France_&nav_from=5f686dbc-2035-4be7-b16f-7dc6944ac157&rw_pos=0