PLATE V. 
Fig. 1. A dynamic flow structure developed in a white aplitic granite, which forms 
a concordant vein in a mica schist. Nic. 7. Magn. 20 X. Western foot of the 
Cerro Villa Union, Carrizal. 
Fig. 2. Red aplite granite, completely granulated. Nic. 7. Magn. 28 X. The 
western foot of the high ridge of the Sierra de Umango at Arroyo Gaucho. 
