MOOK, STUDY OF THE MORRISON FORMATION 



91 



Feet 



Greeu clay 9 



Sandstone 2 



Green, maroon, red clay 26 



Sandstone , 

 Green clay. 

 Sandstone , 

 Green clay. 



Fig. 52. — Section of tlie 

 Morrison and Sundance 

 formations on the 

 north side of Gomo 

 Anticline, Wyoming. 



1. — Morrison forma- 

 tion ; 2. — Sundance for- 

 mation. Scale, 12.5 feet 

 to 1 incli. (Loomis.) 



1% 



20 



2 



60 



Sandstone li^ 



Maroon clay 20 



Sandstone li/^ 



Purple clay with limestones 20 



Brown clay with limestone beds TO 



Total of Jurassic [Morrison and 

 Sundance] 378 5/6 



Section on south side of the Gomo Anticline, or Como 

 Bluff 



Dakota [Cloverly] Feet 



Sandstone 200-f 



Black and red sandstone 4 



Straw yellow sandstone 20 



Jurassic [Morrison and Sundance] 



Maroon clay 10 



Bluish green clay 15 



Yellow green clay 13 



Bluish green clay 15 



Sandy clay 5 



Gi-een clay 2 



Concretions 1 



Green clay 15 



Sandstone 4 



Green clay 10 



Green clay with small concretions 25 



Maroon clay with small concretions 20 



Green clay 9 



Red clay 5 



Maroon clay 7 . 



Red clay 8 



Gray sandstone 28 



Dark green clay 10 



Sandstone 1% 



Red and green clay 10 



Sandstone 2 



Green clay 25 



Sandstone 12 



Purple clay with limestones 15 



Gray brown clay 55 



Total of Jura.ssic [Morrison and Sundance] 332^ 



