564 



W. C. PHALEN 



the elongated lens-shaped masses are essentially made up of quartz 

 with an outer covering of the schist. They measure nearly 3 feet 

 in length, with a breadth of 2 to 4 inches and a thickness of i to 2 

 inches. So far as appearances go, they closely simulate on a much 

 larger scale the smaller masses collected near Ellijay. They cannot 

 by any stretch of the imagination be regarded as stretched or deformed 

 bowlders. Pogue^ has figured and described almond-shaped masses 

 of mashed acid coarse tuff from Davidson County, North Carolina. 

 The rock, according to this writer, has undergone a moderate amount 

 of compression and now projects above the ground surface in lenticular 

 or almond-shaped masses 20 feet long, 10 feet high, and 5 feet thick 

 at the base. They are distributed in groups and often scores may 

 be seen in alignment following the trend of a tufaceous belt. It 

 has occurred to the writer- that Pogue's almond-shaped masses may 

 be of the same nature as the structure observed near Ellijay, but on a 

 gigantic scale. In conclusion, it is desired to emphasize the view that 

 the Ellijay occurrences are purely structural phenomena producible 

 in varying degrees of perfection in almost any rock, independent of 

 original pebbles, and liable to occur in any region of intense meta- 

 morphism. 



I Am. Jour. Sci., XXVIII (September, 1909), 224. . 



