1970 - PhD Soil Science, Lincoln College, University of Canterbury, NZ
1966 - BSc (Hons) Chemistry, University of Canterbury, NZ
1995 - PhD Earth Sciences, University of Southern California, Los Angeles, US
1989 - MSc Geological Sciences, University of Washington, Seattle, US
1985 - BSc (Hons Major) Geology, University of California, Santa Cruz, US
2001 - DSc Chemistry, University of Nottingham, UK
1972 - PhD Chemistry, University of Nottingham, UK
1969 - BSc (Hons) Chemistry, University of Nottingham, UK
2001 - PhD Soil Science, Lincoln University, NZ
1996 - BSc (Hons) Biochemistry, Lincoln University, NZ
1986 - PhD Hydrometallurgy, Imperial College, University of London, UK
1981 - BSc (Hons) Chemistry, University of Bradford, UK
1977 - PhD Chemistry, University of London (Imperial College), UK
1973 - BSc Chemistry, University of Edinburgh, UK
1995 - PhD Chemistry, University of Manchester, Institute of Science and Technology (UMIST), UK
1991 - BSc (1st Hons), University of Essex, UK
2004 - Graduate Certificate in Trademark Law & Practice, University of Technology, Australia
