SUBMARINE MOUNTAINS 



71 



40 Wj 



45 35 1 1 



45 43 * 41 !?&>■'' 



• . 4^ fa** 



FIGURE 39. MAP OF SUVA DIVA ATOLL. LAND IN SOLID BLACK. 

 DEPTHS IN FATHOMS. 



shelves of the tropical belt were then eroded to flatness. With 

 the next melting of ice-caps and consequent rise of general sea- 

 level, coral larvae, emerging from places of asylum and dis- 

 tributed by currents, colonized the smoothed flats, took root, 

 and with the slow rise of sealevel, throve particularly well 



