PLATE I. 



liio Grande 

 Section 



Seal!.' ..f U-^t 

 .iOOO • 



Terliary (Eoccucy 



Xrpper C'retaceoiy 



T,owcr Cretaceous 



C'lavs. saniU, lignite — 1000 Ft. 



a 

 o 



1 



a 



O 



■3) 



cd 



EsLOiulido Beds— SCO Ft. 



•"'■«1 Selies— 3;-> Ft. 



>!an Misiirl F.o,l>—l.:,0 Ft. 



F'psou Claj-— 500 Ft. 



.Vustin Cliiillc (Limestone)^ -ToO Ft 



Faglo Ford (Limestone)— :?50 Ft. 



BuUa Limestone— SO Ft. 



Del I^io ei.ij- 100— 1.j0 Ft. 



Devils Eivcr 



Limestone — 500 Ft. 



Ueoreetown 



Edwards 



m^ 



Section ■Ea»t of 

 riiacon Creek 



1000- 



Tertiarv 



Pulliani 



Formatiou— _jOO Ft. 



Anaeaclio 



Liiueslone — 500 it. 

 TTpson Clay 



Austin Chalk 



Eagle Ford 



jTnda." " 

 Del Eio 



Devils Eiver 



lilt 



cpccc 



:1000- 



•?noo 



1000- 



SECTIOIM SHOWING THE GENERAL CLASSIEICATION OF THE SEDIMENTARY ROCKS IN 

 THE UPPEK PART OF THE BIO GRANDE EMBAYMENT, TEXAS. 



