on many other margins of the world, including Argentina, Brazil, Japan, Canada, South Africa, Antarctica... France Jean-Marie Auzende, Centre Oceanologique de Bretagne, Boite Postale 337, 29.273 Brest Cedex,...1529, La Jolla, California 92037 B. Biju-Duval, Institut Francais du Petrole, 1 et 4, Avenue de Bois-Preau...Petroleo Brasileiro S. A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil M. J. Carr, Dartmouth College, Department...Park, California 94025 P. Courrier, Societe ELF pour la Recherche et l’Exploitation des Hydrocarbures, 7 |