622 GEOLOGY. 



The Kansas section of the Permian is as follows : 1 



Names of Formations. 



Thickness 

 in Feet. 



Characteristics. 



Cretaceous 













Unconformity 











f ® 



' Taloga formation 



25-30 



Chiefly maroon-colored shales 







o3 







below, with massive red and 







OD 







grayish-white sandstones 







0) 







above; no fossils. 







;fep 



Day Creek dolomite. . . 



1-5 



Gray to white; no fossils. 







s 



. Red Bluff formation. . 



175-200 



Light red sandstone and shale. 

 In Oklahoma contains ma- 





CO 









rine invertebrate fossils. 









' Dog Creek formation. . 



30 ± 



Dull-red, argillaceous shales; 





m 









lamina? of gypsum in lower 





c < 









part, and ledges of dolomite 







a> 



bJO 







in the upper; no fossils. 





o3 



o3 



Cave Creek formation . 



50 



One massive bed of gypsum, or 





OQ 







two such beds separated by 





^ 4 

 ^ < 







red clay-shale; caverns 







o 

 PR 



Glass Mountain forma- 





abundant. 









tion 



200-225 



Fine-grained, bright-red sand- 

 stone of varying hardness 







Is 











GO 







below, with highly gypsifer- 



1 



■+3 











ous clays above; no fossils. 







Kingfisher formation. . 



800 ± 



Saliferous and gypsiferous, 



£ 











prevailingly dull-red or 



w , 











brown shales. Lower pait 



§ 











in Oklahoma has vertebrate 



1 











remains. 





f & 



" Wellington shales 



200-450 



Mainly bluish gray to slate- 



Oh 





H bC 





colored; occasional beds of 







i * 







dolomite and gypsum. 

 Mainly buff, thin-bedded lime- 







I s 



Marion formation 



400 













stones, and shales; locally 













contains beds of gypsum and 













rock salt; lower portion 





co' 









contains marine fossils. 





0) 





' Winfield formation. . . 



20-25 



Cherty limestone and shales; 





0> 



02 









marine fossils. 





j3 





Doyle shales 



60 



Varicolored shales; occa- 







sional thin beds of soft 





PQ 



0> 







limestone; marine fossils. 





.SP 



5 



Fort Riley limestone. . 



40 + 



Massive and buff to thin- 





ffl 



CO . 



CO 







bedded and shale; marine 

 fossils. 







5 



Florence flint. . . ..... 



25 



Cherty limestone; marine fos- 







O 







sils. 









Mat field shales 



60-70 



Varicolored shales with some 

 limestone; marine fossils. 









Wreford limestone. . . . 



35-50 



Some portions very cherty; 





'■ 









marine fossils. 



Pennsylv 



mian s; 



^stem 







1 Prosser, Jour, of Geol , Vol. X, pp. 703-737; Cragin, Colorado College Studies, 

 Vol. VI. 



