THE ADIRONDACK GRAPHITE DEPOSITS 



35 



indicated on the map informed the writer that he has repeatedly 

 plowed up chunks of graphite as. big as his fist. It is a fine composite 

 of very small flake and amorphous material. 



I^Igabbro 



ALGOMAK) SYENITE 

 IANORTHOSITE 



(HUNDIFFERINATED &RENVILLE 

 IJh^GRENVILLE QUARTzite 



HHgrenville limestone 



[^JGRENVILLE AMPH»BOLlT£ 



Fig. 5 Geologic and topographic reconnaissance map of the Gulf region, 

 Ausable quadrangle. The topography taken from the Federal map ; geol- 

 ogy by H. L. Ailing, 1915 and 1917. 



