228 



THE ANDES OF SOUTHERN PERU 



Figs. 151-154 — These four diagrams represent the physical history and the corre- 

 sponding physiographic development of the coastal region of Peru between Camana and 

 Mollendo. The sedimentary beds in the background of the first diagram are hypo- 

 thetical and are supposed to correspond to the quartzites of the Majes Valley at Aplao. 



