Review of seismic structure of the continental lithosphere with results from the southern Africa seismic experiment - James, D.E.; van der Lee, S.; Silver, P.; VanDecar, J.; Kuehnel, R.; Jordan, T.H.; Saltzer, R.; Gaherty, J.; Goré, J.; Zengeni, T.; Nguuri, T.; Wright, C.; et al. (International Kimberlite Conference: Extended Abstracts, 1998)