208 • Marine Minerals: Exploring Our New Ocean Frontier 



Figure 5-21.— Offshore Phosphate District, Southeastern North Carolina Continental Shelf 

 1 



78°00' 



Black 

 Lake 



Maple Hill 



3.1 6.2 12.4 18.6 



34°30' 



Miles 



Northeast 

 Cape 

 Fear 

 River 



jWilmingtorii 



Map 

 Area 



34°00' 



''^ 



Cape 

 Fear 



Belgrade 



o5 



Ellis Lake \Jq 



Silverdale 



Morehead 

 City 







Frying pan 

 phosphate district 



.^-^^^ ./I 



.Z 



SOURCE: Adapted from S.R. Riggs, S.W.P. Synder, AC. Mine, S.W, Snyder, M.D. Ellington, and P.M. Mallette, "Geologic Framework of Ptiosphate Resources in Onlsow 

 Bay, Nortfi Carolina Continental Shelf," Economic Geology, vol. 80, 1985, p. 720. 



