360 



DYNAMICAL GEOLOGY. 



lachian region of east Tennessee ; and other flexures in this part of the region 

 are overthrust in the same way. In the western half of the disturbed belt 

 Silurian and Devonian strata occur, and there is one fault in which the 

 thrust is westward. Similar facts and sections are reported by Dawson from 

 the country just south, between the parallels of 51° and 49°. 



335. 



Mapof the Wasatch Mountains and adjoining part of Utah. Reduced frona the large colored plate of the 



Atlas of the Fortieth Parallel Survey. 



To the south of this region, in western Wyoming, according to A. C. 

 Peale (1877) and 0. St. John (1878), there are sections similar to those 



