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 



14 



45 



13.0 



Oto 1.0 





Medium to coarse sand with armoured 

 mudballs and small pebbles. 









1.0 to 3.0 



10YR7/6 yellowish-brown 



Medium to coarse sand. 









3.0 to 5.0 



2.5Y8/4 yellow 



Medium sand. 









5.0 to 7.5 



2.5Y8/6 yeUow 



Medium to coarse, moderately 

 well-sorted sand. 









7.5 to 12.0 





Organic mud 



(see Table 4 for radiocarbon date). 









12.0 to 13.0 



2.5Y8/4 yeUow 



Clean, fine sand. 



15 



52 



6.3 



Oto 6.3 



2.5Y8/4 yellow 



Clean, medium, moderately well- to 

 well-sorted sand. 



16 



46 



6.3 



Oto 6.3 



2.5Y8/4 yeUow 



Clean, medium, well-sorted sand. 



17 



51 



10.0 



Oto 6.0 



2.5Y8/2 white 



Clean, fine to medium, well-sorted sand. 









6.0 to 10.0 



10YR8/2 white 



Clean, fine, well-sorted sand. 



18 



63 



15.3 



Oto 1.5 



10YR6/2 hght brown 



Fine to coarse sand with rounded 

 pebbles. 









1.5 to 6.0 



10YR6/3 brown 



Medium to coarse sand. 









6.0 to 12.0 



10YR6/3 brown 



Coarse sand. 









12.0 to 15.3 



2.5Y7/6 yellow 



Fine to coarse, moderately sorted sand. 



19 



30 



4.2 



Oto 2.0 



10YR6/6 brown 



Coarse, moderately well-sorted sand and 

 pebbles. 









2.0 to 4.2 



7.5YR 5/8 brown 



Medium to coarse sand. 



20 



30 to 35 



2.0 



Oto 1.0 



lOYR 8/3 pale brown 



Clean, fine, well-sorted sand. 









1.0 to 2.0 



lOYR 8/4 pale brown 



Clean, fine to coarse sand with rounded 

 pebbles. 



21 



52 



7.0 



Oto 7.0 



2.5Y8/4 pale yellow 



Clean, medium, moderately well-sorted 

 sand. 



22 



59 



10.3 



Oto 1.0 



2.5Y 8/4 yellow 



Clean, medium to coarse sand. 









1.0 to 2.0 



lOYR 6/6 brownish-yellow 



Medium to coarse sand. 









2.0 to 10.3 



lOYR 7/8 yellow 



Fine to medium, moderately well-sorted 

 sand. 



90 



