ADDITIONAL COMMENTS ON THE GEOLOGY OF THE JUAN FERNANDEZ ISLANDS 73 



Fig. 31. Masafuerite dike, x 9. Loberia vieja, Masafuera. 



Fig. 32. Masafuerite dike, x 9. Analogous to sample Fig. 31 but with rims of iddingsitc 

 all phenocrysts of olivine. Loberia vieja, Masafuera. 



