PAUNA OF FLINT BED ABOVE THE ALMA STONE. 45 



quarried to a considerable extent near Alma, and is simply another ex- 

 posure of the Manliattan or Cottonwood limestone. Therefore the mas- 

 sive limestone, with tlie overlying yeHow, fossiliferous shale, near Alma 

 represents the rocks which I have called the CottouAvood formation. 



Professor Swallow mentioned tlie occurrence on Mill creek -'^ of his 

 FasuUna limestone, number 80 of his section (which we have shown is 

 the Manliattan and Cottonwood limestone) ; his " Cotton rock," number 

 82 (the argillaceous limestones at the top of our number 8), and his " Dry 

 ])one limestone," number 84 (the hard irregular limestone which with 

 the overlying argillaceous limestones we have called number 8 of the 

 Alma section). 



This lower limestone Professor Swallow called the base of the Permian, 

 and he stated that there was an unconformity on Mill creek, where 

 this *' Dry bone limestone " (number 84) rests on what he called the 

 " FasaUna shales " (number 96), while beds numbers 85 to 95, which 

 represent strata 86 feet in thickness exposed at Manhattan, are missing 

 on Mill creek. t 



First Flint Bed above the Alma Stone. — Near the top of the high hill east 

 of the Cement and Alma stone quarries, and two miles east of Alma, 

 is another limestone quarry. The stratum is not so massive as that 

 of the Alma stone, and above it is a shale which is capped by layers of 

 limestone alternating with chert and covered b}^ a few inches of soil. 

 This chert or flint bed is barometrically about 145 feet above the top of 

 the Alma stone, or between 310 and 315 feet above the level of Mill 

 creek. On the summit is an excavation in which the alternating layers 

 of gray limestone and chert are nicely shown. This shaly limestone is 

 somewliat fossiliferous. A few fossils were also found in the chert, and 

 the following species were obtained at this locality : 



1. S[/nirilas)iia Jiemiplicata (Hall), Meek and Worthen. (c) 



2. J%m«^(/>/*7/7a (Hall), Newh. (c) 



3. Choneles gmnuUfera, Owen. (/•/•) 



4. Derhya crassa (M. and H.), H. and C. (?) (/•>•) 



5. ProductHs nehrascensis, Owen, (rr) 



6. Pseudomonot'is hanmi (yi. 2in(\.\l.). {rr) 



7. Bnj(}Z(Ktn .«p. {rr) 



The geologic Section of the upper Kansas River. 

 q e ne r a l cha r a c te r is ti cs. 



Above the Manhattan stone on the Kansas riv^er is a series of blue, 

 drab and chocolate colored shales alternating with thin l)uff, drab and 



* Prelim. Ropt, Geol. Surv. Kansas, p. 10. 



tn>id., p. 44; also, see Trans. Acad. Science, St. Louis, vol. ii, ISfi.s, p. .'"vJl. 



Vl[ -Uti.r,. GiioL. 8oc. Am , Vol. G, 1894. 



