3, Survey Area C . Two large seatnounts, Rehoboth and Nashville, 

 and several groups of smaller peaks were surveyed in Area C. The 

 twin-peaked Rehoboth has associated with it three magnetic "highs". 

 The ridge-shaped Nashville Seamount has several magnetic contour 

 closures. Other seamounts in the area have similar closely related 

 magnetic features. 



4, Enroute Survey . The magnetic and bathymetric data collected 

 on tracks enroute to and from the survey area are shown in Figures 



7 through 22. On profile A-B (Fig. 7), a 600 gamma anomaly was 

 charted south of Long Island where the track crosses an anomalous trend 

 described by Zurflueh, 1962. Profile D-E (Fig. 9) illustrates 

 the typically strong magnetic character of three seamounts of the 

 New England Chain. Other profiles are useful for showing the mag- 

 netic character of the earth's crust between the continent and the 

 seamount chain. 



Three zones of differing magnetic character, as seen in Figure 

 6, were described by King, et al, 1961. Zone 1, "The Bermuda High", 

 is characterized by closely spaced anomalies of rather uniform size. 

 The flatness of the bottom topography in Zone 1 may be noted by 

 referring to the appropriate "Magnetic and Bathymetric Profile Sheets". 

 Zone 2 includes broad anomalies of variable amplitude over the con- 

 tinental shelf and slope. Zone 3, lying between the first two zones, 

 is characterized by relatively smooth profiles. Exceptions to the 

 smooth nature of the magnetic field are anomalies caused by Caryn 

 Peak and Bear Seamount 



