Abstract EN:

This work deals with sea-level rise as biological, sedimentological and archeological indicators upon rocky and sedimentary coasts of Provence. This thesis is structured in three parts. In the first part, we analyse the rocky coasts characterized by Lithophyllum lichenoides rim. My project was aimed at studying this mid-littoral bioconstruction and their submerged remains. Both, present and older cornices, are monospecific and composed of strongly calcified thally. Older cornice remains have been created when relative sea-level was lower. Principal results, from rediocarbon datations of remains, show that relative sea-level rise cas of 0,4 mm year around 4500 and slowed off to 0,2 mm year from around 1500 b. P. To present. In the second one, we examine and compare recent archeological excavations of the antique sites of Marseille and Toulon. We used biological indicators of sea-levels as fossil intertidal barnacles (Balanus ampirite), emerged archeological structures now under the present 0 sea-level (wharfes, gutters, towing zones, roads. . . ). An attempt is made to compare and interpret all the results in terms of relative sea level variation versus neotectonic mobility of the different sites. In the last part, we emphasize the anthropic impacts of Greek and Roman