Figure 2. Characterist 

 hydrothermal field 

 the plaque placed 

 white precipitates 

 areas of active fl 

 peripheral to the 

 observed extensive 

 Bottom: View of z 

 ( indicated by whit 

 downslope from the 



ic bacterial habitats at Pele's Vent 



Top: View of Pele's Vent field showing 

 at the site on Alvin dive #1800. The 



at the top (center and left) identify the 

 uid flow. Middle: View of area 

 active hydrothermal vent field where we 



reddish-brown bacterial carpets, 

 one of organic matter deposition 

 e fluff-like material) in an area 



active vent field. 



200 



