BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Vol. 18, pp. 427-448, PLS. 43-48 NOVEMBER 30, 1907 



STEATIGEAPHY AND STEUCTUEE OF THE UINTA EANGE* 



BY F. B. WEEKS 



(Presented hy title before the Society December 29, 1906) 



CONTENTS 



Page 



Introduction 428 



Geography 429 



General features 429 



Central area 430 



Southern slope 430 



Northern slope 430 



Western end of the range 431 



Eastern end of the range 431 



Landslides and "rock streams" 431 



Geology 432 



General sections of Wasatch, Uinta, and Grand Canyon regions 482 



Geologic map : 432 



General features 432 



Pre-Cambrian "Uinta" formation 434 



Nomenclature and correlation 434 



Description 435 



Cambrian Lodore shales 435 



Nomenclature and correlation 435 



Description 436 



Ordovician Ogden quartzite 436 



Nomenclature and correlation 436 



Description 487 



Carboniferous 487 



Mississippian series 437 



Nomenclature and correlation 437 



Description 438 



Pennsylvanian series 438 



Nomenclature and correlation • • • • 438 



Description 438 



Weber formation 438 



Permian Permo-Carboniferous 4.39 



Nomenclature and correlation 439 



Description 439 



* Received by the Secretary of the Society from the censor September 13, 1907. 



* Manuscript received by the Secretary of the Society from the censor September 13, 

 1907. 



XXXVII — Bull. Geol. See. Am., Vol. 18, 1906 (427) 



