EDITORS:
Editor: Per Terje Osmundsen, Geological Survey of Norway
co. editor: Lars Olsen, Geological Survey of Norway

ADVISORY EDITORS:
T. Andersen, Oslo, D. Bruton, Oslo, B.C. Burchfiel, Cambridge, Massachusets, O. Eldholm, Bergen, W. Helland-Hansen, Bergen, B. Jamtveit, Oslo, E. Jansen, Bergen, G. Juve, Oslo, P. Jørgensen, Ås, I. Lønne, Longyearbyen, R.B. Pedersen, Bergen, B. Robins, Bergen, G. Raade, Oslo, H.P. Sejrup, Bergen, J. Skei, Oslo, A.M. Spencer, Stavanger, R. Steel, Laramie, Wyoming, M. Stephens, Uppsala, F. Surlyk, Copenhagen, J.L.R. Touret, Amsterdam, T.H. Torsvik, Trondheim, R.D. Tucker, St. Louis, Missouri.