INLET CHANNELS 



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maps it is possible to determine in a tolerably accurate way by 

 the extent of this inlet delta how long the particular entrance 

 to the lagoon has remained open. 



Where a shore-line is now in process of subsidence, as 

 appears to be the case along the Atlantic coast from Cape 

 Florida to New York, the depth of water in the channels 



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Tidal Deltas at Ocracoke and Hatteras Inlets 



which lead from the inner side of the inlet to the mouths 

 of the principal rivers is often sufficient to accommodate the 

 largest ships. Unfortunately, however, these down-sunken 

 and therefore deep channels are often separated from the sea 

 by the broad and shifting barrier of sands in which the inlet 

 lies, and which stretch for some distance beyond its seaward 

 mouth. Owing to the unstable character of the sands which 

 constitute this barrier, and the constant movement of (/3r/s 



