Table A-4. Sediment description from Suffolk County sewer outfall cores.— Continued 



Core no. 



Water depth 



Core length 



Interval 



Description 







(feet) 



(feet) 



(feet) 







V-6 



45 



37.5 



to 0.7 

 0.7 to 0.8 

 0.8 to 9.0 

 9.0 to 11.3 



11.3 to 12.4 



12.4 to 18.5 



18.5 to 23.9 

 23.9 to 26.3 

 26.3 to 27.0 

 27.0 to 32.5 

 32.5 to 33.5 

 33.5 to 36.0 

 36.0 to 36.3 

 36.3 to 37.5 



Fine to medium sand. 



Black, soft, inorganic silt. 



Light, fine to medium sand with shell fragments. 



No sample available. 



Light gray, medium sand with shell fragments. 



Sand with lenses of dark brown peat. 



Light gray, fine to medium sand. 



No sample available. 



Tan, fine to medium sand with pebbles and shells. 



Gray, fine to medium sand. 



No sample available. 



Gray, fine to medium sand with shell fragments. 



Brown to black silt. 



Dark gray, fine to medium sand. 





V-2 



48 



40.0 



to 36.5 

 36.5 to 36.9 

 36.9 to 40.0 



No sample available. 

 Gray, gravelly sand. 

 Black, silty clay. 





V-3 



52 



36.8 



to 1.75 

 1.8 to 11.2 



11.2 to 21.3 



21.3 to 31.9 

 31.9 to 35.0 

 35.0 to 35.3 

 35.3 to 36.8 



Dark gray, compact clay. 



Tan, fine to medium sand with gravel. 



Gray, fine to medium sand with thin layers of dark minerals. 



Gray, very compact clay. 



Dark gray to black, fine to medium sand. 



Poorly sorted gravel. 



Black, very compact clay with abundant mica. 





V-4 



55 



40.0 



to 1.0 



1.0 to 2.0 



2.0 to 12.0 



12.0 to 13.5 



13.5 to 14.5 



Gray, medium sand. 



Gray, medium to coarse sand with shell fragments. 



Gray, medium sand with shell. 



Fine to medium, clean sand. 



No sample available. 











14.5 to 18.5 



Gray, fine to medium sand with thin layers of silty, micaceous 



sand. 









18.5 to 22.6 



No sample available. 











22.6 to 23.5 



Medium sand. 











23.5 to 25.3 



Dark gray, silty clay. 











25.3 to 27.0 



No sample available. 











27.0 to 27.5 



Dark gray, silty clay. 











27.5 to 29.8 



Fine sand with sUt lenses. 











29.8 to 30.2 



Sandy gravel with some clay. 











30.2 to 40.0 



Dark green tc brown, sUty, sandy, micaceous clay. 





103 



