Table A-1. Sediment description of Coastal Engineering Research Center cores from Long Island south shore.— Continued 



Water depth 

 (feet) 



Core length 

 (feet) 



Interval 

 (feet) 



Color code 



Description 



45 

 37 



23 



8.5 



13.4 



15.9 



10.0 

 7.5 



6.6 



Oto 0.5 

 0.5 to 1.5 



1.5 to 3.5 

 3.5 to 8.5 



Oto 3.3 



3.3 to 6.0 



6.0 to 13.4 



Oto 3.8 

 3.8 to 6.0 

 6.0 to 15.9 



to 8.0 



B.O to 10.0 



lO.O to 14.0 



to 10.0 



Oto 4.0 



4.0 to 6.0 



6.0 to 7.5 



Oto 3.0 



3.0 to 4.0 



4.0 to 4.7 



Oto 1.0 

 1.0 to 6.6 



5Y6/2 gray 

 5Y7/1 gray 



5Y 7/2 gray 

 10YR6/4 reddish-brown 



5Y7/1 gray 



2.5Y8/2 brown 



10YR6/6 reddish-brown 



5Y7/1 gray 



5Y5/1 gray 



lOYR 7/1 gray 



5Y 7/2 gray 

 5Y 8/2 gray 

 2.5Y 6/4 reddish-brown 

 10YR6/1 gray 

 5Y8/2 gray 

 5Y6/2 gray 

 5Y6/1 gray 



2.5Y7/2 gray 



5Y8/2 gray 

 5Y7/2 gray 



10YR8/3 brown 

 lOYR 7/6 reddish-brown 



Medium, moderately sorted sand. 



Silty, medium sand mixed with shell 

 hash and rounded ^ 1-inch diameter 

 pebbles. 



Clean, fine to medium, gray to brown 

 sand with shell fragments. 



Medium to coarse sand mixed with 

 rounded pebbles ^ 1.5-inch diameter 

 (pebble composition: red silt, stone, 

 quartz, gneiss). 



Fine, poorly sorted, micaceous sand, 

 silt and clay. 



Clean, fine to medium sand with 

 rounded pebbles. 



Clean, medium to coarse sand with 

 rounded pebbles. 



Silt. 



Micaceous cohesive mud. 



Clean, fine to medium, moderately 

 sorted sand. 



Clean, fine, moderately well-sorted sand. 



Clean, medium to coarse sand. 



Medium to coarse, poorly sorted sand. 



SUty micaceous mud. 



Clean, fine sand. 



Fine, micaceous sand. 



Silty, medium to coarse, moderately 

 sorted sand. 



Clean, medium to coarse, moderately 

 well-sorted sand. 



Slightly silty, fine sand. 



SUty, medium sand with fine shell 

 fragments and mica. 



Medium to very coarse sand. 



Medium to coarse, moderately 

 well-sorted sand. 



89 



