BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 VOL. 16, PP. 517-530, PLS. 88-89 DECEMBER 20, 1905 



STRATIGRAPHY OF THE UINTA MOUNTAINS 



BY CHARLES P. BERKEY 



{Read before the Society Saturday, December SI, 1904-) 

 CONTENTS 



Page 



Introduction 517 



Early descriptions. 517 



Stratigraphic problems 518 



The western Uintas 520, 



Standard section — the Wasatch column 520 



The stratigraphic series 521 



Faulting on the southern flank 523 



Unconformity. 524 



Discussion 525 



Suggested correlation 529 



Introduction 



The-summer season of 1903 was spent by the writer in the Uinta Indian 

 reservation, which includes the southern flank of the Uinta Mountain 

 range. Many expeditions were made through the western portion of 

 the area. The notes made at that time furnish the data for the follow- 

 ing descriptions of local structural features, as well as the basis of the 

 writer's presentation of the accompanying discussion. 



Early Descriptions 



The geology of the Uinta region is known almost exclusively through 

 the writings of Clarence King * S. F. Emmons,f and J. W. Powell. J In 

 the matter of stratigraphic succession and equivalence in particular there 



♦Clarence King: Paleozoic subdivisions of the fortieth parallel. Am. Jour. Sci., 3d series, vol. 

 xi, 1876, pp. 475-482. 



Clarence King : Uinta and Wasatch ranges. Am. Jour. Sci., 3d series, vol. xi, 1876, p. 494. 

 tS. F. Emmons : U. S. Geological Explorations of the Fortieth Parallel, vol. ii, chapters ii and iii , 

 1877. 

 X J. W. Powell : Geology of the Uinta mountains. 1876. 

 J. W. Powell : Uinta mountains. Am. Jour. Sci., 3d series, vol. xii, p. 414. 



LXVII— Bull Geol. Soc. Am., Vol. 16, 1904 (517) 



