NOTES ON THE GEOLOGY OF GEORGIA 



167 



COLUMNAR SECTION 

 ALTERED PALEOZOIC AND ARCHEAN ROCKS OF GEORGIA 



SYSTEM 



FORMATION 



COLUMNAR THICKNESS 

 SECTION IN FEET 



METAMORPHIC 

 CAMBRIAN 



ARCHEAN 



NOTTELY QUARTZITE 



200 4. 



ANDREWS SCHIST 



MURPHY MARBLE 



50-300 



VALLEY TOWN FORMATION 



1200-2000 



BRASSTOWN SCHIST 



1200-1500 



TUSQUITEE QUARTZITE 



NANTAHALA SLATE 



1000-2000 



GREAT SMOKY 

 FORMATION 



-UNCONFORMITY- 

 GRANIT E 



PYROXENITE,DUNITE, 

 AND SERPENTINE 



ROAN GNEISS 



CAROLINA GNEISS 



' n inI\ A/V/^ 





5000-6500 



Fig. 2 



