65; ,45' 



FiGUEE 15. — Potential mineral resources of the Atlantic Coast Continental 



margin. 



Source : Department of Interior. 



be economically exploited. Many of these will, of course, continue 

 to be found on land. But geological samplings have already dem- 

 onstrated the presence of many minerals on and near the Continental 

 Shelf. These are newly discovered deposits of sulphur in the Gulf 

 of Mexico, manganese off the Atlantic and Pacific coasts, and phos- 

 phorite off our Southeast and California coasts. 



79 



