Participation in international projects:

• Consultant Structural Geologist, U.N.Project MAU 77/006 "Air-borne Geophysical Prospection in the Mauritanides in Mauritania", 1979-1982
• IGCP Project #22 "Precambrian in Younger Fold Belts", 1972-1980
• IGCP Project #276 "Palaeozoic in the Tethys", 1988-1994
• EUROPROBE-PANCARDI (1994-2000)
• TRANSMED (2001-2004)