870 



GEOLOGY 



been made against it and on its edge sometimes assumed the form 

 of mounds, hillocks, and short ridges, known as kames (Fig. 580). 

 Kames are primarily phenomena of the margin of the ice, developed 

 by running water (the active agent) in association with ice (the 

 passive partner). Kames are composed of stratified gravel and 



Fig. 580. A group of kames near Connecticut Farms, N. J. (N. J. < ;>! 



Surv.) 



sand chiefly, but the stratification is often very irregular, and the 

 gravel ill-rounded. In position, kames have some relation to 

 terminal moraines, and many of the conspicuous knobs and hills of 

 such moraines are, individually, kames. 



In regions of strong relief, ice often occupied deep valleys after 

 it disappeared from the intervening ridges. In such situations the 



