Section of line H, Fernandina grid, showing filled channels incised into the blue and red reflection units. 

 These channels are common off Jacksonville and northward. 



Section of St. Augustine— Cape Canaveral reconnaissance Hne B showing truncated syncline. Such 

 pronounced structural features are rare in shallow subbottom strata under the inner shelf. 

 Figure 10. Photo reproduction of selected sections of seismic reflection profiles siiowing typical acoustic 

 reflections under the north Florida East Coast Shelf. 



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