FIGURES (continued) 



Page 



26. Cross Section from CB-18, CB-19 and Drill Hole CBG 39 



27. Essex Flood-Tidal Delta Profile. .... 40 



28. Sandy Till from Drill Hole CBB 42 



29. Weathered- Zone Material 46 



30. Sketch of Castle Neck at 10,000 B.P 48 



31. Sketch of Southern Plum Island at 10,000 B.P. 



and 4,000 B.P 50 



32. Sea-Level Trends for Plum Island Area 52 



33. Sea-Level Curve. .... ........ 53 



34. Origin of Castle Neck 56 



VI I 



