.4" """ 



Approximate Horizontal 



Scale 



Nautical Miles 





0.2 5 



1 1 



0.5 



1 



1 1 



^ 



0.5 



0.8 



Kilometers 







CEREN-GE 



Figure 5. South-north seismic profile line 37 from Long Beach to the Rockaway shelf. The 

 sea floor is the topmost continuous irregular line and the Pleistocene erosion 

 surface is the contact between underlying Coastal Plain strata and overlying 

 Pleistocene outwash. The top two profile frames show the Coastal Plain cuesta 

 and abrupt transition to the deeply eroded and filled main Hudson Channel and 

 two smaller channels. The fourth profile frame shows the regular profile of the 

 Diamond Hill mound. Detailed stratigraphy for the Diamond Hill region is 

 provided by the Ambrose Borings No. 2 and 3 shown in Table 2. (Ln. 37 location 

 shown in Figure 2; the numbers refer to navigation fixes and the letters refer to 

 trackline intersections.) 



23 



