66 



THE FLOOR OF THE OCEAN 



— •• /•>-.• 





NORTH ROCK > ' ' 



BERMUDA BANK 



FIGURE 34. MAP OF BERMUDA ISLAND ( SOLID BLACK.) AND 

 SURROUNDING BANK. 



Pacific region, has come from limestone-veneered, volcanic 

 cones represented by Mango Island of the Fiji group, Mangaia 

 Island of the Cook group, Uvea of the Loyalty group, and 

 Jaluit Atoll of the Marshall group. Several of the Hawaiian 

 islands show plain evidence of repeated risings and sinkings in 

 slow rhythm, but as yet no evidence that these greatest of all 



Bottom of hole 



MICHAELMAS CAY 



Bottom of hole 



HERON ISLAND 



BERMUDA 

 FIGURE 35. SECTIONS SUMMARIZING LOGS OF BORE-HOLES IN BERMUDA 

 ISLAND, MICHAELMAS CAY, AND HERON ISLAND. 



