Figure 7. The sea floor at 4900 feet on the west slope of 

 Guam was approximately 50 per cent exposed basement 

 rock with a thin mantle of sediment. The bedrock was 

 finely sculptured by erosion and dissolution of the softer 

 portions. A partially disintegrated palm frond (?) appears 

 in the lower third of the figure. Dive No. 60, (35- mm 

 electronic flash photograph) 



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