Quaternary sfraligrophy and fifllic induslries o[ Emilia-Romagna ouler Apenninic margin 113 SoUosezione I Sous-session I Subsection Cronologia e correlazioni Chronologie et eorrélations Chronology and correlations QUATERNARY STRATIGRAPHY AND LITHIC INDUSTRIES OF EMILIA-ROMAGNA OUTER APENNINIC MARGIN Enzo Farabegoli*, Giuseppe Onorevoli* Dipartimento di Scienze della Terra e Geologico-ambientali, Università per gli Studi di Bologna, via Zamboni, 67 - 40126 Bologna, Italia. Tel++39 (51) 354565;fax: ++39 (5/)354522; E-mail:fara@geomin.unibo.it Abstract Twenty-three lithostratigraphic units and about ten coeval geomorphic alluvial terràces constitute a nearly complete sequence in Romagna, representing more than 750/0 of the main events during this last l million years (Myr.). Paleomagnetic data and paleoenvironmental interpretation of the local stratigraphy reveal consistent correlations with the world-wide stratigraphic table. Generally, the continental units represent the transitions: from glacial to interglacial, or warm periods (8 reddish soils); except for Riss 11 (loess-pseudogley soil and b6 terrace) the glacial periods are hardly ever represented in the Romagnan sequence. The main changes in lithic industries seem to correspond to the main transitions from glacial to interglacial periods. Human migration could have taken piace from north-east and north- west during warm periods while ice-age migration could have been possible from east and south-east trough the emerged adriatic area. The spreading and evolution of lithic industries could be considered as the local adaptative response to carrying these lithic instruments for longer periods and distance. Infact, the progressive enlargment ofthe Po Plain increased the distance between the pebble deposits located on the apenninic margin and the hunting areas in the alluvial pia in. 1. lNTRODUCTION The study of italian territory has given relevant contributions to the marine and continental Quaternary research (Ruggieri 1954, 1965, 1975, 1976; Ruggieri & Selli, 1948; Selli 1981, Colalongo & Sartoni 1979; Kukla et al. 1979). With regards to the continental Quaternary stratigraphy of the tyrrhenian side, important findings derived, at first, from the studies of terraced marine-vulcanic deposits (Ambrosetti et al. 1972, Malatesta & Zarlenga 1985). The scarcity of good quality outcrops in the padan Apenninic margin long prevented the reconstruction of an exhaustive suitable stratigraphic scheme (Cremaschi 1978, 1983, 1985, 1987; Cremaschi & Papani 1975; Nenzioni & Vannelli, 1982; Ricci Lucchi et al. 1982, Vai 1984, Marabini et al. 1987). Only after the discovery of the San Mamante section, consisting