1872.] DAINTREE GEOLOGY OP QUEENSLAND. 305 



compact. From a microscopic examination, Mr. Allport gave the 

 following description : — 



" This is a felsite or trachyte, and consists of a fine, granular 



Fig. 16. — Plan of a portion of the Gape Mining-district, showing a 

 dyke of Felsite traversing Metamorphic Schists. 



Post Pliocene : 

 Alluvial Upper 

 Gold Deposit. 



Desert Sand- 

 stone. 



m 



Metamorphic : 

 Mica and 

 Hornblende 



felspathic base, in which there are scattered groups of minute green 

 grains and crystals of hornblende." 



