142 ANNALS NEW YORK ACADEMY OF SCIENCES 



(s) After the overthmsting occurred, there followed a period of in- 

 trusion in which large irregular granitic and dioritic masses together 

 ivith numerous dikes were injected into the Mesozoic and older forma- 

 tions. 



(t) North-south faulting near Alta has resulted in the formation of 

 two master faults and numerous minor fractures. These run roughly 

 parallel to the main Wasatch fault line and probably belong to the same 

 period of readjustment. 



Bibliography 

 physiogeaphy 



Atwood, W. W. : Glaciation of the Uinta and Wasatch Mountains, Utah. U. S. 



Geol. Surv. Prof. Pap. No. 61. 1909. 

 Davis, W. M. : Ranges of the Great Basin : Physiographic Evidence of Fault- 

 ing. Sci., Vol. XIV, pp. 457-459. 1901. 

 Emmons, S. F. : Kept. U. S. Geol. Surv. 40th Par. Descr. Geol., Vol. II. 1877. 

 Geikie, a. : Ancient Glaciers of the Rocky Mountains. Am. Nat., Vol. 15, p. 3. 



1881. 

 GiLBEBT, G. K. : Geographical and Geological Explorations and Surveys West 



of the 100th Meridian, Vol. Ill, pp. 17-187. Washington, 1875. 



: Lake Bonneville. U. S. Geol. Surv. Monograph I. 



Johnson, D. W. : Block Mountains in New Mexico. Am. Geol., Vol. XXX, pp. 



13&-139. 1903. 

 King, Clarence : Rept. U. S. Geol. Surv. 40th Ptr. Sys. Geol., Vol. I. 1878. 

 Le Conte, Joseph : Origin of Normal Faults and of the Structure of the Basin 



Region. Am. Jour. Sci., 3rd Ser., Vol. XXXVIII, p. 257. 1889. 

 Russell, I. C. : Geological History of Lake Lahontan. U. S. Geol. Surv. 



Monograph XI. 1885. 

 Spubb, J. E. : Origin and Structure of the Basin Ranges. Bull. Geol. Soc. Am., 



Vol. 12. pp. 217-270. 1901. 



STRATIGRAPHY AND PALEONTOLOGY 



Bebkey, C. p. : Stratigraphy of the Uinta Mountains. Bull. Geol. Soc. Am., 



Vol. 16, pp. 517-530. 1905. 

 Blackwelder, E. : New Light on the Geology of the Wasatch Mountains. Bull. 



Geol. Soc. Am., Vol. 17, pp. 517-533. 1910. 

 : Handbuch der Regionalen Geologic. Vol. 8, Pt. 2, p. 136. peidelberg, 



1912. 

 BouTWELL, J. M. : Geology and Ore Deposits of the Park City District, Utah. 



U. S. Geol. Surv., Prof. Pap. No. 77, pp. 41-65. 1912. 

 Emmons, S. F. : Rept. U. S. Geol. Expl. 40th Par., Vol. 2, p. 342. 1877. 

 <jriRTY, G. H. : Carboniferous Formations and Faunas of Colorado. U. S. Geol. 



Surv. Prof. Pap. No. 16. 1903. 



