RELATIVE SEA LEVEL 



FALUNG SEA LEVEL 

 OR EMERGENCE 



RISING SEA LEVEL 

 OR SUBSIDENCE 



RAPID 



SLOW 



RAPID 



g 



o 



t ZERO- 



</) 



O 



Q. iij 





i 



Figure 9. Relationship between rate of net sediment deposition/erosion and rate of sea 

 level rise/fall (after Curray (1964)) 



of Engineers in the mid-1960s. This program was undertaken to accom- 

 plish the following: 



a. Identify continental shelf sand bodies for beach nourishment 

 purposes. 



b. Gamer a greater understanding of shelf sedimentation as it pertains 

 to the supply of sand for beaches. 



c. Increase understanding of changes in coastal and shelf morphology, 

 longshore sediment transport, inlet migration and stabilization, and 

 navigation. 



d. Increase understanding of the geologic history of the continental 

 shelf. 



Additional studies of the Middle Atlantic Bight of North America include 

 Veatch and Smith (1939), Shepard (1963), Emery (1966), Uchupi (1968), 

 andDuane et al. (1972). 



42 



Chapter 4 Sedimentary Features/Stratigraphy of the Inner Shelf 



