Institution: | Sub-Dept. of Geophysics, Liverpool University, Liverpool L69 3BX;Graduate School of Oceanography, University of Rhode Island, Kingston, R. I. 02881, U. S. A.;University of Iceland, Reykjavik, Iceland.;Department of Geology, University of Massachusetts, Amhurst, Massachusetts, U. S. A.;Faculty of Science, The Open University, Walton Hall, Walton, Bletchley, Buckinghamshire. |