U. S GEOLOGICAL SURVEY. 



MONOGRAPH XIX PL V 



KEWEENAW SERIES 



^0O0^ Exposures of eruptives 

 South limit 



Upper Slate Member 



- North limit 

 South limit 



Iron-bearing Member. 



PENOKEE 1 tRIES. 



Quartz-Slal Member 



Cherly Limestone Member. 



Eruptives. 



SOUTHERN COMPLEX. 



^= JMWl Exposures ot terrugmous schist. ^^^ SI, Exposures i. laty phases 



■ Limits of surface distribution Exposures <t trtzitic phases 



South limit 



)9Xllk Exposuresof limestone and chert ^iWSf< Exposures of Oreenstones igg!??:* Exposures of granite 

 South limit 



= Exposures showing strike and dip ^ Exposures showing no structure LIrtiE s of exploration by U S Geol Survey Lines of exploration by Wis Geol Survey 



Scale of Map I inch = l mile Scu of Sections I inch = 1320 feet 



DETAILED GEOLOGY OF THE PE. 3KEE DISTRICT, SHEET I. 



