Research associate University Rhode Island, Kingston, 1975-1976. Assistant professor University Stockholm, 1976-1982, senior scientist, 1982-1983, University Uppsala, 1982-1988. Professor University Göteborg, since 1988, chairman department marine geology, 1988-1996.
Delaware Swedish National Science Research Council, Stockholm, 1989-1995. Member Swedish National Committee for Geology, Stockholm, 1992-1999. Member panel Information Handling Panel College Station of the Ocean Drilling Program, Texas, 1995-1996.