352 



GEOLOGY, 



ment. Such a terrace has a gentle slope to seaward, for its outer and 

 older edge has been degraded longer and more. Its slope is influenced 



»AP OE 



BAY BARS OF THE BOilNEVILLErSHOBE 



Kear the Salt Marsli. in. Snake YaUej. Vtelu 

 •ByTT. D.'Johnsoa 



^ 'MVIE 



4^fut Contourt 



"Profile. Vertical' ScalC' three tinus the EortzonZal. 



Fig. 311.— An elevated cliff above Great Salt Lake. In this case the water-level has 

 been lowered. (Gilbert, U. S. Geol. Surv.) 



by the strength of the waves, being greater where they are stronger. 

 The outer edge of the wave-cut terrace is often marked by an abrupt 



