Art IX] Watson, Manganese Ore- Deposits of Georgia. 171 



broad plateau, averaging slightly below 1000 ft. in elevation. 



In the extreme southwest corner of the map (Fig. 9), the hard 



and resistant massive VVeisner quartzite is exposed as a high 



ridge, known as Indian mountain, which lies almost entirely in 



Alabama. Traces of the same base-levels are preserved in the 



rocks of this area as those mentioned in the region farther 



north. 



Fig. q. 



Geological Map and Section of the Cave Spring District, Georgia. (Rome Folio, 



U. S. Geol. Survey.) 

 Scale, 0.5 in. = i mile. 



Stratigraphy. — The same rock-sequence is observed here 

 as in the Cartersville area. (See Fig. 2). The same forma- 

 tions are represented in the two areas, with only slight varia- 



