Lichenometry has been applied to blocks, canyon walls and terrace deposits. A growth curve, specific to Corsica, was made based on information obtained from tombstones, old monuments from the Genoese occupation of Corsica and Roman megaliths. This allowed us to create a curve going as far back as 2000 years. The curve is similar to those developed in Mediterranean environments (C! evennes and Eastern Pyrenees), but is very different from those developed in Alpine and Arctic regions.Lichens present on boulders of the bedload allow the time at which the boulders were laid down to be determined. The lichenometric study of the Figarella shows firstly that there is high stream competence. Blocks approximately 100 cm wide are moved during the 5-year flood. Recent important flood events were identified in 1973 and 1869. These correspond well with historical sources. Other older and much more important floods were also identified. This analysis has allowed us to extend the specific streampower curves proposed by Costa (Geol. Soc. Am. Bull. 94 (1983) 986) and Williams (Geogr. Ann. 65A (1983) 227) to blocks of more than 2 m wide.Lichens present on the canyon walls and on terrace sides in the plain allowed the last main incision phase to be dated to the Little Ice Age. Aerial photograph analysis has shown that the present braided system in the lower course of the river is no longer active.

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In het raam van bet toen pas afgesloten samenwerkingsakkoord tussen de Rijksuniversiteit te Gent en de Poolse Jagiellonski-Universiteit te Krakow, was van 1 januari 1973 tot 30 september 1975 de beer Stanislaw Czepiec, magister in de arcbeologie, verbonden aan bet Seminarie voor Archeologie der R.U.G .. Daarna heeft hij ten persoonlijke titel en zonder officiele opdracht zijn verblijf alhier tot eind september 1978 verlengd.Op aanraden van de beer Marc Rogge, toentertijd aspirant van bet N.F.W.O., stelde de beer Czepiec voor ons enkele opgravingen van ge-( 1) Gebruikte afkortingen :

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