34 



ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 27 



40 



SLOPE OF CANYON AXES 



. 9* 8* T 6* 5* 4" 3* Z* 1* 0.8* 0.6* a4* 



^4: 



-1 1 r* — <^ 



U) 



I 30' 



O 



o o 



< 

 o 



20' 



10" 



Q. 



o 



-I 



' o « 8 



ft » * cS * 



e , o " o 



ooe 



o e « 



o 



OO o j o 



o 

 8 o o g»o ••<> • * 



ogp o e JO 

 o o •» 9 



e o o 



o o eo ' 



u.'ll ^iL uLLiii).: : ajt iii iiL ; =ev 



500 



•400 



I 



!3300 



-I 



I 



. 200 



xioo 

 o 



Ml 



-I — I — I — I 1 r 



«<> 



S 

 8 t 



9 8 



8 o* • 5 • 



_l 1 I I I 1 1 



' I I I L 



Fig. 16. — Relationships of wall steepness and height to slope 

 of canyon axes. Symbol L indicates presence of natural 

 levees. 



