UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGEfWian Data Enterad) 



Linear and arcuate shoals are the dominant sea floor features in the region 

 and most appear to be composed of clean, fine to very coarse-grained quartz sand 

 which overlies a flat deposition surface. Several cores penetrating the surface 

 show the underlying material to be a poorly sorted admixture of fine-grained and 

 very coarse-grained sediments that are denser than the modern shelf sands and 

 probably represent a pre-Holocene fluvial deposit. 



Results of this assessment study show that 16 potential shoal sites and 2 

 promising sea floor areas are present. Individual shoals contain from 4.6 to 

 more than 472 million cubic meters of sand; the total sand and gravel resource 

 is conservatively estimated to be 1,086 million cubic meters. 



UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGEfHOhen Data Entered; 



