Figure 17. Free, spherical manganese 

 nodules, 3.48 cm diameter, resting on 

 Globigerina ooze. South central Pacitic 

 Ocean, northwest of Tahiti. Depth: 

 3695 m. Photo area: 0.5 m x 0.3 m 

 Type II camera. < 1 m target distance. 



Figure 18. Partially buried manganese 

 nodules in clay sediment, Pacific Ocean 

 south of New Zealand. Depth: 5160 m. 

 Photo area: 1.2 m x 1.2 m. Type II 

 camera. 2.6 m target distance. 



Figure 19. Manganese-impregnated pumice 

 slabs resting on brown clay sediment; 

 some clay capping is visible. East North 

 Pacific. Depth: 4302 m. Photo area: 

 1 .2 m x 1.8 m. Type I camera. 2.4 m 

 target distance. 



Figure 20. Scattered manganese nod- 

 ules resting on red clay sediment, East 

 Indian Ocean. Rough surface of clay 

 indicates churning by benthonic orga- 

 nisms. Depth: 4940 m. Photo area: 

 1.2 m x 2.4 m. Type II camera. 3 m 

 target distance. 



42 



