Academic carreer

• Assistant Professor, Department of Geophysics, University of Chile, Santiago, 1971-1973

• Research Associate, Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, 1974-1976.

• Physicien Adjoint, Institut de Physique du Globe de Paris, University of Paris VI, 1977-1979.

• Professor 2nd class (Associate Professor). Département de Sciences Physiques de la Terre, Université Paris VII, 1979-1984.

• Professorr 1st class (Full Professor). Département de Sciences Physiques de la Terre, Université Paris VII, 1984-1991.

• Professor of exceptional class. Département de Sciences Physiques de la Terre, Université Paris VII, 1991-1998.

• Senior Member of Institut Universitaire de France, 1993-1998.

• Professor of exceptional class, Ecole Normale Supérieure, since 1998.