to lie seaward from the break between the continental shelf and 

 the continental slope. In the northern part, profiles A-A' and 

 B-B ' do not show any peak lying seaward but indicate that the peak 

 lies shoreward from this break. This difference in trend sug- 

 gests that the lineation of the magnetic anomaly is not directly 

 related to that of the continental slope. Instead, the lineations 

 of both are probably related to a subsurface structural trend. 



The small, broad anomalies occurring about 60-80 miles sea- 

 ward from the continental shelf have been reported previously 

 by Keller et al (1954). They were noted as occurring in approxi- 

 mately the same location as an increase in isostatic gravity 

 anomalies. Bathymetric data revealed no topographic features to 

 account for the anomalies. Consequently, they may be reflections 

 of some type of deep-seated lithologic contrast. In profile view, 

 these anomalies are best seen on Profiles A-A', D-D', and F-F' 

 on Figures 4, 7, and 9 respectively. 



10 



