Bridge A 



SANDUSKY 

 BAY 



1396 ^ . . ^ , ,. _, ^- , 



--^- Seismic Trocklines ond Fix Locotions 

 mil^ Sond 



Muddy Sand 

 ^Iflj Mud 



Dredged Rock 



Aa A 



Sediment Type 



□ Vibrocore Locotions 

 A Transponder Locotions 



I 

 Kilometers 



Figure 19. Surface sediment in. the Cedar Point area (modified 

 from Hartley, 1960). 



32 



