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Name Alias(es): 
89.5 W, Galapagos Rift
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Notes on Vent Field Description: 
low-temperature hydrothermal area hosted in pillow basalts that supports an extensive community of vent clams; in addition, an extinct high-temperature sulfide chimney was discovered east of Calyfield; located within the Galapagos Marine Reserve (UNESCO Natural World Heritage Site)
Notes Relevant to Biology: 
Calyptogena clams, demosponge
Year and How Discovered (if active, visual confirmation is listed first): 
2002 submersible Alvin
Discovery References (text): 
Fornari, D et al. (2002) High Resolution Mapping and Near-Bottom Investigations of the Galapagos Rift Between 86W and 89.5W Using ABE, Alvin and a new Towed Digital Camera. American Geophysical Union, Fall Meeting 2002, abstract #T11C-1256
Shank, T et al. (2002) Time-Series Exploration and Biological, Geological, and Geochemical Characterization of the Rosebud and Calyfield Hydrothermal Vent Fields at 86W and 89.5W on the Galapagos Rift. Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract T11C-1257.