Art. IX.] Watson, Manganese Ore-Deposits of Georgia. 153 



metamorphic area of the State, have been overthrust upon Si- 

 lurian rocks of the Paleozoic area. (See Fig. 3). These faults 

 bear no relation to the manganese-deposits, and, therefore, need 

 not be more fully described in the present connection. 



The minor-thrust faults characterize the southern part of 

 the area, especially of the area immediately south of Rome and 

 in the vicinity of Cave Spring, and are of the ordinary Appa- 



FiG. 2. 



Knox dolomite 



Conasauga shale 



Rome sandstone 



Beaver limestone 



Weisner quartzite 



Sk 



-eb 



1 ,1 , 1 



I I I I I 



I I I I 



I . I . I . I 



^^ 



^se^ 



I I I I . I" 



I II 



White, gray, or light-blue magnesian 

 limestone or dolomite, generewlly semi- 

 crystalline and massively bedded. 

 Contain many nodules and layers of chert, 

 and in some places rounded sand grains. 



Clay shales, with thin beds of limestone 

 at top and bottom. 



White, brown, or varicolored sandstone 

 and sandy shale. 



Blue siliceous limestone. 



Interbedded sandstone, sandy shale, 

 conglomerate, and quartzite. 



Generalized Stratigraphic Section of the Georgia Manganese-.Area. (Adopted 

 from Hayes). Scale, approximately, i in. = 2000 ft. 



lachian type. (See map of the Cave Spring district. Fig. 9.) 

 They have an appro.ximate north-south direction, intersecting 

 the main axis of the region at angles of 30 to 40 degrees, or 



