Notes on Vent Field Description:
northern spreading center of propagating rift; MacDonald et al. (1988): "Between 20 S and 20 30'S there are at least nine active hydrothermal fields"
Notes Relevant to Biology:
Year and How Discovered (if active, visual confirmation is listed first):
Discovery References (text):
Macdonald et al., J. Geophys. Res. 93, 2875-2898, 1988, Deep-Tow and Sea Beam Studies of Dueling Propagating Ridges on the East Pacific Rise Near 20 40'S.