322 



J. C. BEAXXER OUTLINES OF THE GEOLOGY OF BRAZIL 



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fj s -e 



ments near the coast are Tertiary. West of the Serra 

 Miaba is an area of limestones and shales; the Creta- 

 ceous series about Maroim and Larangeiras also contains 

 large areas of limestones. 



Economic geology. — The limestones and clays of the 

 s.ate are very abundant, are available for the manufac- 

 ture of Portland cement as well as for ordinary lime, and 

 the oolitic limestones on Eio Sergipe would make excel- 

 lent building stones. At present those rocks are not 

 used save for the manufacture of small quantities of 

 hme for local consumption. The cream-colored flaggy 

 Lmestones exposed along Eio Cotinguiba at Sapucary 

 have long been used locally for foundations and for walls 

 and street pavements. 



Geologic Maps of Sergipe 



Branner, 1913. — An article by Branner on the Estan- 

 cia beds of Bahia, Sergipe, and Alagoas, published in the 

 American Journal of Science, volume 35, for June, 1913, 

 page 619, was accompanied by a small map showing the 

 geology of the southwestern part of the State of Sergipe. 

 It is on a scale of 1 to 2,500,000 and shows three sub- 

 divisions, namely: crystalline complex, Permian, and 

 Cretaceous and Tertiary — the last two as one. 



Soper, 1914. — A geologic map of Sergipe was pub- 

 lished by R. H. Soper in his "Geologia e supprimento 

 d'agua subterranea em Sergipe," etcetera, publication 

 number 34 of the Inspectoria de Obras Contra as Seccas, 

 Piio de Janeiro, July, 1914. It is on a scale of 1 to 

 'i ,000,000 and shows four geologic subdivisions, namely : 

 pre-Cambrian, Paleozoic, Permian (?), Cretaceous and 

 Tertiary — the last two as one. 



Bibliography of the Geology of Sergipe 



J. C. Bbaxxeb : Cretaceous and Tertiary geology of tlie 

 Sergipe-Alagoas Basin of Brazil. Transactions of the 

 American Philosophical Society, 1889, volume XVI. pages 

 369-434. Philadelphia, 1889. 



J. C. Braxxer : A geologia cretacea e terciaria da bacia do 

 Brazil Sergipe-Alagoas. Trad, de Garcia Muniz. Pub- 

 licacao dirigida por Laudelino Freire. 12mo. 170 paginas. 

 Aracaju. 1890. (Contains a bibliography.) 



