FRENCH, F. SULAS, R.T. MELIS, F. MONTIS, F. DI RITA, S. TAYLOR, D. REDHAUSE, G. SERRELI, Evoluzione del paesaggio e insediamento nel bacino del Rio Posada. Indagini geoarcheologiche, in C. French, R.T. Melis, G. Serreli, F. Sulas (edd.), Sa Massarìa. Ecologia storica dei sistemi del lavoro contadino in Sardegna, Consiglio Nazionale delle Ricerche - Istituto di Storia dell'Europa Mediterranea, Cagliari 2017 (Collana Europa e Mediterraneo. Storia e immagini di una comunità internazionale 37/2017), tomo I, pp. 79-114

New geoarchaeological investigations provide the first local, environmental records concerning the long-term history of the Rio Posada basin in eastern Sardinia. In this article, we present some preliminary findings of field research and laboratory analyses and propose an environmental sequence associated with settlement dynamics and climate change in the Rio Posada basin. On the coast, buried levee deposits and channel fills reflect a dynamic plain environment and settlements located on the floodplain edges. Further inland, deep fine alluvial sequences point to low-energy river flow and extensive areas of overbank alluvial aggradation. The new records from the eastern coast of Sardinia can be associated with palaeoenvironmental proxies available for the island and the western Mediterranean and, thus, contribute to wider regional climatic and environmental sequences.