A study of the sedimentary, stratigraphic and palaeoecological evolution of the archaeological deposits of the Upper Pleistocene and early Holocene in Catalonia, aiming to characterise the human activity recorded in the sediments of the final Upper palaeolithic, the Epipalaeolithic and the early Neolithic, and focusing on the following sites: Cova del Parco, Balma del Gai, Hort de la Boquera, Abric del Filador, Abric dels Colls, Cova de la Guineu, Balma de la Griera and Cova del Vidre. Spanish text.