YOUNGER THAN 

 CHILHOWEE 



Poleozoic 



CHILHOWEE 

 GROUP 

 Lower 



Combnan 



MURPHY MARBLE CATOCTIN 



BELT GREENSTONE 



Age Lote 



OCOEE SERIES 

 Pre-Catoctin, 



CRYSTALLINE 

 COMPLEX 



Early 



V GRANITE INTRUDED 



\ INTO OCOEE SERIES 



Myc luic r r c ^u iui*i in, t_uiiy 



uncertain Precambrian Late Precambnon Precombnan 



X 



Paleozoic ? 



Lynchburg James R 

 



100 



\'\ Washing- 



Fig. 8.22. The Blue Ridge province from Georgia to Pennsylvania showing principally the 

 Lower Cambrian clastic group (Chilhowee) and the Late Precambrian Catoctin greenstone and 

 Ocoee series The Catoctin greenstone includes volcanics and sediments of Mt. Rogers area. 



After P. B. King (1949). E.R., Elk Ridge; S.M., South Mountain; S.H., Short Hill; I.M., Iron 

 Mountain 



Catoc+in Mta 



10 MILES 



Fig. 8.23. Change from open to close folding along east side of Great Valley, in vicinity 

 of South Mountain, Md. After P. B. King, 1950a. pCv, volcanic rocks; Cc, Lower Cambrian Chil- 



howee gr.; COl, Cambrian and Ordovician Is., dol., and some sh.; Ordovician shade. 

 See Fig. 8.22. 



