COMPARISON OF THE CARBONIFEROUS AND PER- 

 MIAN FORMATIONS OF NEBRASKA AND 

 KANSAS.' II. 



THE WABAUNSEE FORMATION. 



Nebraska City. — On account of the historic interest attached 

 to the Nebraska City section care was taken to examine the par- 

 ticular exposures studied by Marcou, Meek and Hayden. As a 

 result of this study I have no hesitation in stating that I fully 

 agree with Meek in referring the lower beds of the section 

 (divisions A and B of Marcou and Meek) to the Upper Coal 

 Measures (Missourian series).^ On the geological "Map of 

 Nebraska and Dakota" accompanying this report, the Permian 

 is represented as entering the state from Kansas in Jefferson 

 county, west of the Big Blue Valley, then extending to the 

 northeast as a narrowing belt across Lancaster county and down 

 the valley of Saline Creek to the Platte River and thence up the 

 Platte River to Fremont. The town of Lancaster near the pres- 

 ent city of Lincoln in Lancaster county, which is the next county 

 west of Otoe, is represented as about halfway across this Per- 

 mian area. However, in general, on this map the Permian is 

 represented too far to the west, as for example in the Smoky 

 Hill Valley in Kansas, the base is represented as near the city of 

 Salina, which in fact is very near the top ; while the system is 

 mapped as extending some twenty-five miles west of Salina, 

 nearly all of which is now known to belong in the Cretaceous. 

 The same is true in reference to the northern tier of counties 

 where the Permian was represented in Washington and Republic 

 counties in what is known to be Dakota and Ft. Benton. Furt- 

 her-more, it is perfectly clear that the upper part of the section 



'Continued from p. i6, this Journal. 



= See the Nebraska City section of Meek in Y'va. Rep. U. S. Geol. Sur. Neb., etc., 



pp. lOI, 102. 



148 



