CONTENTS 

 r]i;ilRES 



Vage 



1 Map showing the location of the 49 averaged bat hymctri c 



jirofiles obtained between Long Island and the Texas- 

 Mexico border . r- 1] 



2 Profile line spacing and bathymetry at profile line 1 13 



3 Profile line 48 illustrating smooth, shore-parallel contours 



which exist beyond the seaward end of the profile J 4 



4 Examples of the three types of shoreface profiles 15 



5 Definition sketch of an idealized Inner Continental Shelf 



profile showing the planar, seaward-dipping, ramp sector 



and the concave-up shoreface sector 16 



6 Rms depth variations along profiles 21 



7 Gulf of Mexico (Texas coast) profiles illustrating an increase 



in ramp slope, a, from northeast to southwest 23 



8 Atlantic coast (North and South Carolina) profiles 



illustrating a decreasing zero-intercept depth, b, 



from north to south 23 



9 Profiles illustrating the concavity parameter, f 24 



10 Comparison of the geometric criteria in determining the 



seaward-limit depth 26 



