MAP. C 



Shorn ng Anas of Fbrphyriltc Trachyte 



Scale of Miles 

 T^Jyti l^iil Hrpkyrdic Trachyte WM Cntauous | 1 



Breccia L. — J 



M - PHOTO LlTHOGRAr'MlCCil >■* 'vSM/THCS P/TOCCSS.} 



