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



Core no. 



Water depth 

 (feet) 



Core length 

 (feet) 



Interval 

 (feet) 



Color code 



Description 



30 



36 



13.0 



Oto 13.0 



2.5Y 8/2 white 



Clean, fine to medium, moderately 

 sorted sand. 



31 



47 



11.4 



Oto 11.4 



10YR8/2 white 



Clean, fine to medium sand. 



32 



19 



7.0 



Oto 5.0 



lOYR 8/2 white 



Clean, medium to coarse sand. 









5.0 to 7.0 



5Y6/3 gray 



Silty, fine to coarse sand with quartz 

 pebbles. 



33 



54 



6.0 



Oto 6.0 



2.5Y8/2 white 



Clean, fine to medium, moderately 

 well-sorted sand. 



34 



51 



10.0 



to 10.0 



10YR8/2 white 



Clean, medium to coarse sand with 

 rounded gravel. 



35 



30 



10.5 



Oto 2.0 



10YR8/3 white 



Clean, coarse to very coarse sand with 

 gravel =S 1-inch diameter. 









2.0 to 6.0 



2.5Y8/2 white 



Qean, medium to coarse sand. 









6.0 to 10.5 



10YR8/6 yeUow 



Medium to coarse sand with gravel 

 < 1-mch diameter. 



36 



44 



9.0 



Oto 3.0 



lOYR 7/2 gray 



Clean, fine, moderately sorted sand. 









3.0 to 6.0 



10YR6/1 gray 



SUty, fine sand. 









6.0 to 8.0 



5Y 7/1 gray 



Clean, fine to medium sand. 









8.0 to 9.0 



5Y8/1 white 



Clean, fine to very coarse sand. 



37 



32 



5.3 



Oto 2.5 



5Y6/1 gray 



Very fine to fine sand witli abundant 

 opaque heavy minerals. 









2.5 to 4.0 



2.5Y 7/2 hght gray 



Very fine to very coarse sand, rounded 

 pebbles, large shells at —4 feet. 









4.0 to 5.3 



10YR8/1 white 



Clean, very fine to fine sand. 



38 



45 



9.2 



Oto 1.0 



5Y8/3 yeUow 



Clean, fine to medium sand. 









1.0 to 5.0 



5Y7/1 gray 



Silty to very fine sand. 









5.0 to 6.0 



5Y6/1 gray 



SUty, medium to coarse sand. 









6.0 to 7.0 



5Y7/1 gray 



Silty to very fine sand. 









7.0 to 9.2 



2.5Y8/2 white 



Clean, fine to medium, moderately 

 well-sorted sand. 



39 



32 



8.0 



Oto 2.0 



5Y6/1 gray 



Silty, fine to medium sand. 









2.0 to 4.0 



10YR6/1 gray 



SUt. 









4.0 to 4.7 





Organic peat 



(see Table 4 for radiocarbon date). 









4.7 to 8.0 



10YR7/1 gray 



Silty, fine to medium sand with 

 scattered pebbles from 5.3 to 6.1 feet. 



92 



