Core no. 



V-18 



V-19 



V-20 



V-21 



V-22 



V-23 



V-24 



V-15 



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



Water depth 

 (feet) 



49 



52 



55 



Core length 

 (feet) 



59 



65 



21.0 



18.5 



21.1 



17.0 



26.8 



Interval 

 (feet) 



to 6.8 

 6.8 to 21.0 



to 0.5 



0.5 to 1.5 



1.5 to 12.5 



12.5 to 12.8 



12.8 to 18.5 



to 0.6 



0.6 to 15.0 



15.0 to 21.1 



to 1.8 



1.8 to 2.4 



2.4 to 12.5 



12.5 to 17.0 



to 4.8 



4.8 to 10.0 



10.0 to 16.0 



16.0 to 21.8 



21.8 to 25.0 

 25.0 to 26.0 

 26.0 to 26.9 



to 14.9 



14.9 to 17.5 

 17.5 to 18.0 

 18.0 to 22.0 



Oto 1.4 

 1.4 to 3.8 

 3.8 to 8.0 

 8.0 to 12.8 



12.8 to 12.9 



12.9 to 13.5 

 13.5 to 20.7 



to 0.5 



0.5 to 11.0 



11.0 to 11.5 



11.5 to 17.7 



17.7 to 19.5 



19.5 to 22.6 



22.6 to 28.8 



28.8 to 35.3 



Description 



Light to dark gray, fine to medium sand with pebbles and shells. 

 Tan, compact sand with layers of dark minerals. 



Yellowish-brown, medium sand. 



Dark gray, silty sand. 



Sand with gray clay lenses. 



Brown sand with dark brown clay lenses. 



Tannish-gray, fine to medium sand with layers of dark minerals. 



Gray, medium to coarse sand with large shells. 



Gray, fine to medium compact sand with mica and dark minerals. 



Medium sand with dispersed dark minerals. 



Gray, fine sand. 



Gray, medium to coarse sand with shells. 

 Gray, fine sand with organic clay layer at 6.9 feet. 

 Yellowish-brown, fine sand with thm layer of dark 

 minerals (glauconitic?). 



Gray, fine to medium sand with shell hash layers. 



Fine to coarse sand. 



No sample available. 



Gray, medium to coarse sand with occasional wood fragments. 



Dark gray, stiff clay; possibly overconsolidated. 



Sandy, pebbly gravel. 



Greenish, glauconite sand. 



Light gray, fine to medium sand. 



Mottled gray and black, overconsolidated clay. 



Sandy, pebbly gravel vrith shell hash. 



Dark green to black, micaceous silt. 



Gray to brown, medium sand. 



Gray, medium sand with large shells. 



Gray, fine to medium sand. 



Dark gray, compact, silty clay. 



Large, pebbly gravel. 



Dark green to black, very compact, silty, micaceous sand. 



Dark green to black, silty sand with some gravel. 



White, fine to medium sand with few pebbles. 



Light gray, fine to medium sand. 



Medium sand with shells and few pebbles. 



Light gray, fine sand. 



Dark gray sand with possible erosion of surface. 



Dark gray, fine to medium sand. 



Yellowish-brown sand and small gravel. 



Light gray, fine, compact sand with thin bands of dark minerals. 



101 



