1. Ultramafic nodules from the Thaba Putsoa kimberlite pipe;Boyd;Carnegie Inst. Wash. Year Book 71,1972
2. A pyroxene geotherm;Boyd;Geochim. Cosmochim. Acta,1973
3. Structure of the upper mantle beneath Lesotho;Boyd;Carnegie Inst. Wash. Year Book 72,1973
4. Partial melting of garnet lherzolites from kimberlites at high pressures;Kushiro,1973
5. Density distribution and constitution of the mantle;Clark;Rev. Geophys.,1964