THE QUEEN'S RIVER MORAINE 



693 



the deposit to the ice-sheet, the main features will be discussed 

 somewhat at length. 



77/ c bowlder belt lies on the southern slope of SJirnb Hill. — The 

 accumulation of bowlders marking this moraine has taken place 

 on the southern slope of a range of low crystalline hills forming 

 the northern side of the river valley. The elevation above the 



Fig. 2. — Sketch map of Rhode Island showing Queen's River bowlder belt. A, 

 Cat Rocks in Exeter. E, Wickford Junction and Congdon Hill moraine. The small 

 hachures northward indicate frontal deposits near East Greenwich. 



stream varies from 20 to 100 feet. At Exeter the line crosses 

 the river. Except for the excessive development of bowlder 

 accumulations along this line, the surface deposits of till both 

 north and south of the belt for several hundred feet would be 

 classed as ground moraine, probably in part englacial till with 

 subglacial material underlying it, the product of the melting out 

 of an indefinite mass of ice. 



The occurrence of bowlder belts in Southern New England 

 on the crest of hills or on their southern slopes has been 

 remarked elsewhere, as on Cape Ann by Shaler and Tarr, and 

 on the southern slope of the highlands of Martha's Vine- 



