DIS, basal metalliferous sediments
Notes on Vent Field Description:
basal sediments enriched in Fe (overlying basaltic basement); Rona et al. (2005): "Mn-oxide coatings on basalts in the axial valley with Fe/Mn ratios at the boundary between hydrogenous and hydrothermal composition with thickness at two stations (1.67S, 67.77E; 5.35S, 68.62E) suggestive of hydrothermal input"
Notes Relevant to Biology:
Year and How Discovered (if active, visual confirmation is listed first):
Discovery References (text):
[Cronan (1980), Rona et al. (1981), Cronan et al. (1974)
Shankar et al. (1987) Marine Geology, 76, 253-280.]
Other References (text):
Rona et al. (2005) Carslberg Ridge and Mid-Atlantic Ridge: Slow-spreading Apparent Analogs. American Geophysical Union, Fall Meeting 2005, abstract #OS33A-1455.