Jenkins 



Rathbun 



Jordan 



ReinTiardt 



Jones 



von Ihering 



Krasser 



Warming 



Lacerda 



White, C. A. 



Lund 



Winge 



Lutken 



Woodward 



Morris 





Quatrefages 





222 J. C. BRANNER OUTLINES OF THE GEOLOGY OF BRAZIL 



origin, and it is assumed that the corresponding sediments forming a 

 similar belt in Ceara are also marine. Marine fossils have been found 

 also in the Tertiary beds in Parahyba, Pernambnco, Alagoas, and Bahia, 

 and it is supposed that some of the coastal sediments in Sergipe, Espirito 

 Santo, Eio de Janeiro, and along the coast to the south are likewise Ter- 

 tiary. In Rio de Janeiro, Sao Paulo, and Minas are extensive Tertiary 

 lake deposits, and near Ouriganguinhas, Bahia, lake deposits overlie the 

 marine Cretaceous. 



The Tertiary fossils have been described by — 



Alport 



Arnold 



Conrad 



Cope 



Dall 



Ethridge 



Gabb 



Gervais 



Giirich 



Economic geology of the Tertiary. — In the coastal belt from Bahia 

 northward the Tertiary sediments are liable to be of value at many places 

 as sources of underground water. At several places in the States of Bahia 

 and Alagoas the Tertiary beds include bituminous shales that may even- 

 tually be of economic importance. In Minas and Sao Paulo the Tertiary 

 lake deposits also contain lignites and bituminous shales. These shales 

 were formerly used at Taubate for the manufacture of gas. Clays for 

 the manufacture of bricks, tiles, sewer pipes, and common pottery are 

 abundant in the Tertiary. See also under Amazonas. 



Petrography 



Under the head of petrography nothing need be said of the old writers 

 whose geologic classifications were based on lithology. All of the early 

 writers on Brazilian geology used terms that have long been discarded. 

 Most of the modern work on this branch of geology was done by Hussak, 

 whose papers are given under the States of Minas, Sao Paulo, Rio de 

 Janeiro, and Goyaz. Following are the modern petrographers who have 

 written on Brazilian rocks : 



Bauer, H. E. 



Hovey 



Derby 



Hussak 



Gill (Fernando de Noronha) 



Iddings 



Gorceix 



Kemp 



Graeff 



Laerne 



Gumbel (Fernando de Noronha) 



Machado 



