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E. C. HARDER AND R. T. CHAMBERLIN 



makes a sharp turn northward and then continues northwestward, 

 thus forming a narrow eastward pitching antichne. The northern 

 Hmb of the antichne dips to the northeast and rocks of the basement 

 complex are exposed southwest of it along the axis of the anticline. 

 At Capanema the quartzite band branches, one arm going north- 

 eastward and forming the conspicuous mountain mass of the Serra 

 do Caraga (Fig. 4) while the other continues northwestward, forming 



Fig. 4. — The Serra do Carafa at Alegria. A portion of the Backbone Range. 

 The high Serra consists of resistant Carafa quartzite. In the middle distance are 

 hills of the Itabira iron formation whose strata dipping toward the right reach a 

 maximum thickness of 1,200 meters in this section. In the far distance to the right 

 are lowlands of the granite complex. 



the Serra da Capanema, then, becoming less prominent topographi- 

 cally, it continues northward around the headwaters of the Rio 

 Santa Barbara. 



At a point west of Cocaes the latter belt divides again, an 

 eastern arm forming the prominent ridge above Cocaes and then 

 disappearing, while the main belt here forms the central axis of the 

 Serra do Espinhago, which continues northward for many miles — 

 a great quartzite range. 



