CENTRAL ROCKIES 



a39 



Fig. 22.12. Cross section lengthwise of the Wasatch Mountains east of Salt Lake City. After Granger, 

 Sharp, and Crittenden, unpublished map. Section 12, Fig. 22.1. 



BASIN AND RANGE 

 FAULT 5 



Cgb 



'C/f-i 



'Cgb> 



o a u i r r h 



MOU NTAIN5 



OPHIR ANTICLINE 



Ch. 



. x s^ — r- 



€1 



Dj 



Tm- 



2? ^ 





Dj 



IN 



o 





— >-E 



BINGHAM 5YNCLINE 

 77 





3\\\ 



Clf 



i 



2 3 



, Mil F«. -;,.,/-,,,./ 







j)eo ii>ve.l 



Fig. 22.13. Cross section of the Oquirrh Mountains. After Gilluly, 1932. Section 13, Fig. 22.1. 



WASATCH AREA OF UTAH 



Colorado Phase (Cedar Hills Orogeny) 



The foredeep basin east of Evanston continued to the southwest, and 



;in the Wasatch area east of Salt Lake City the Frontier and Wanship 



''formations were deposited in it, making up a sequence of sandstones, 



shales, and coal beds about 7000 feet thick. See Fig. 22.3. A conglom- 



erate about 50 feet thick forms the lower part of the Wanship which 

 rests unconformably on the Frontier and older beds. 



Although the degree of discordance is very slight and difficult of recognition 

 in the Coalville area, the unconformity is very pronounced locally and attains 

 90° of discordance at the head of Dry Creek about 2 miles east of Rockport 

 Reservoir. The angular unconformity is at the base of the conglomerate that is 

 near the middle of the sequence in the Coalville area which has heretofore 

 been regarded as Frontier. At the Dry Canyon locality the conglomerate con- 



