SECT. 2] 



OCEANIC ISLANDS, SEAMOUNTS, GUVOTS AND ATOLLS 



379 



— I r- 







Fig. 7. Surface atolls, submerged atolls and guyots in the Pacific. Uncertainty of reported 

 occurrences indicated by query. Andesite line shown by dashes. Atolls to west of line 

 (after Cloud, 1958). 





RONGELAP 



■■%: 



RONGERIK 



Fig. 8. Atolls and guyots in the Marshall Islands ; perspective sketch as they might appear 

 were the water removed. (After von Arx, U.S. Geological Survey, 1954.) 



