ajf*^- 



Figure 5. Composite sketch of fluid venting site 1428 on 



marginal thrust ridge (see fig. 4 for location). Colonies 

 of tube worms occupy the ledge above the canyon wall, and 

 several clusters of giant white clams are aligned along 

 presumed zones of fluid expulsion. Cone-shaped carbonate 

 chimney structure, with attached corals, is seen at the top 

 of the sketch. Venting sites are about 20 m 2 areal extent. 

 (From Suess et al. 1985, their fig. 1.) 



159 



