ADDITIONAL COM.MKMS ON I UK GEOLOGY OK IHK JLAN KKKNANDKZ ISLANDS 67 



24. Olivine basalt, supersaturated w ith iron oxide, x 35. \'esicular tlow breccia. Los Inoccntes 

 elevation c. i 500 m, Masafuera. 



Fig. 25. Olivine phenocryst from specimen Fig. 24. x no. Specks and streaks of unaltered 

 olivine as rests in a pseudomorph after olivine. Los Inoccntes, Masafuera. 



