- LEGEND- 



EPICENTERS (1961-1971) 



HEAT FLOW (HFU) 



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DSDP DRILL SITES 



PHILIPPINE SEA 



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Figure 2. Track location and geophysical information plotted on bathy- 

 nietrlc contour chart of the Caroline Basin (after Bracey, 1975). Contour 

 interval 200 fathoms (366 m) . Lines A-G and 1-15 are NAVOCEANO tracks. L- 

 D and UH lines are tracks from Lamont-Doherty Geophysical Observatory and 

 the University of Hawaii, respectively. 

 3 





