364 Geology of Long Island. 



Figs. 4 & 5. Scale 1 inch=60 feet. 



Section on southeast shore of Gardiner's Island, looking west. 



a. Glacial drift. 



b. Laminated white sand. 



c. " white sand streaked with limonite. 



d. " yellow and blue clayey sand. 



e. " white and yellow sand. 

 /. ' ' grey and yellow sand. 



g. ' ' yellow sand with blue clay. 



h. " grey sand with red clay. 



i. " red clay and grey sand. 



J. ' ' grey sand with red clay. 



Jc. " sand, top streaked with limonite. 



I. Dark greenish clay. 

 V " " " somewhat granular. 



m. " grey clay and sand, laminated. 

 m' Beach sand streaked with limonite. 



fi. Laminated sand, stratification obscured by a slide and possibly in- 

 terrupted by a fault. 

 o. Laminated greenish sand. 

 p. " white and yellow sand. 



r. ' ' green and yellow clayey sand. 



s. " reddish clayey sand with fossil shells. 



t . Dark greenish clay. 

 u. Fine laminated sand. 



PLATE XXVIII. 



Map of Long Island, showing the southern limit of glacier action. (Pre- 

 pared on the basis of the U. S. Coast Survey Map.) 



