always appeared on magnetic profiles flown transverse to the slope. 

 In this area, seismic investigations by others indicated the presence 

 of a ridge in the crystalline basement rocks. However, it was not 

 known whether this seismic ridge was the source of the magnetic 

 anomalies. Likewise, neither the detailed configuration of the 

 magnetic anomalies nor the exact positional relationship of the 

 anomalies and the continental slope were known. 

 C. Survey Area 



The survey was conducted in an irregularly shaped area lying 

 between latitudes 35°N and 40°N and longitudes 70°W and 76°W. The 

 survey track lines were run approximately perpendicular to the con- 

 tinental slope. Specific survey tracks are shown in Figure 1. 



