ADDITIONAL COMMENTS ON THE GEOLOGY OF THE JUAN FERNANDEZ ISLANDS 67 



Fig. 



•4. Olivine basalt, supersaturated with iron oxide, x 35. Vesicular flow-breccia. Los Inocentes 

 ^elevation c. i 500 m), Masafuera. 



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

 olivine as rests in a pseudomorph after olivine. Los Inocentes. 



cak^ <:i tUKiiLcred 



