PLATE Vra 



Fig. 1. Sample 51, volcanic mud, northeast Pacific, depth 3573 meters; 

 0.5- to 0.25-mm size grade; grains of pumice and volcanic glass; 

 shells of pelagic foraminifera, including Globorotalia tumida and 

 menardii. Globigerina inflata. Globigerinoides conglobata and sac - 

 cullfera (CaC03 content of sample, 16 per cent) 



Fig. 2. Sample 51, 0.25- to 0.12-mm size grade; pumice, volcanic 

 glass, broken and entire shells of pelagic foraminifera 



