Figure F1. (Na2O + K2O)-SiO2 diagram (Macdonald, 1968) for basalts from the Kerguelen Plateau. Fields for Kerguelen and Heard Islands basalts are from Storey et al. (1988); Kerguelen Plateau (Holes 749C and 750B) data are from Storey et al. (1992). Is. = island. alk. bas. = alkalic basalt.

Figure F1. (Na₂O + K₂O)-SiO₂ diagram (Macdonald, 1968) for basalts from the Kerguelen Plateau. Fields for Kerguelen and Heard Islands basalts are from Storey et al. (1988); Kerguelen Plateau (Holes 749C and 750B) data are from Storey et al. (1992). Is. = island. alk. bas. = alkalic basalt.