ul PLATEAUS. 



a^^. -.-! ii;u ^uryc ii.iC'.endin' 



;:?evier 



nature of the displacements which have 



■i are seen immense beds of volcanic conglom- 



^ ing from 12° to 25° to the weutwaid There 



\jrain and again the beds have sheared 



Wsmvmmm 



-md slipj' 

 thrown tu 

 stratified 

 trachyte - 

 Suddenly 

 l.i'. > .' .-. 



(I 

 Through ; 

 alwut 2,500 



East Pork CaRok. 



.)50 feet, all ot 



' >nglomerato, beam 

 as of dark horn blend ic 

 n this part of the ; 

 'ar to end abruptl) ui n 

 ' :. ...... I the north, and on the 



^ _' :. : of a totally different character. 



■^ the main throw of the great Sevier fault, here of 



i a cement As we look beyond it find up to the tow- 



incipal plateau mass, we again recognize the continua- 



•^ratoa in the palisgidos bounding the tabular summit. 



r series of slratA has be<*n brought to light by the lift 



'^ '" carton. These are tufaceous deposits, 



...^.^. ... ds is shown in Heliotypes V and VI.* 



tlieir verj- asj)ect that they are water-laid, yet 



f them are seen to have been subject to altera- 



h gives tlieni the appearance of massive volcani' 



.'A) feet in thicknesa which has the 



that no 'oubtthat 



where th<> r 



<m wero taken, as 



