BULL. GEOL. SOC. AM. 



VOL. 22, 1910, PL. 15 





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i (fxcK' 



Figure 1. — Hard Catixga Limestone 



Containing shells of land mollusks from fazenda Varzea do Sal. Salitre Valley 



FlGlKK 2. — Tbaveutixk Bakuiku 

 This barrier, about 2 meters high, is across Uio Salitre at fazenda Salitre 



CATINGA LIMESTONE AND TRAVERTINE BARRIER 



