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Analyses of the survey data reveal that an estimated 172 million cubic 

 meters of suitable sand is present in 15 different locales. Most of the sand 

 is contained in linear and arcuate shoals that appear to be Holocene to modern 

 in age. The shoals are resting on a pre-Holocene age substrate composed of 

 sedimentary deposits of fluvial origin. These deposits show evidence of past 

 subaerial erosion. 



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