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Galapagos Mounds

Name Alias(es): 
MGDS_FeatureID lowest in hierarchy: 
Vent Sites: 
Maximum Temperature: 
Max Temperature Category: 
Location on map: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Full Spreading Rate (mm/a): 
Volcano Number (if applicable): 
Host Rock: 
Deposit Type: 
NFS, Fe & Mn crusts and mounds
Notes on Vent Field Description: 
Fe & Mn oxide mounds with abundant Fe silicate (nontronite) deposits, off-axis hydrothermal mounds; Williams et al. (1979): "internal temperatures have been measured at up to 13°C above the bottom water temperature,"; Corliss et al. (1979): "a visual flow of water with temperatures between 4 and 10 C was initiated by punching holes through the crusts on the mound surfaces" with Alvin
Notes Relevant to Biology: 
Year and How Discovered (if active, visual confirmation is listed first): 
1977 submersible Alvin
Discovery References (text): 
Corliss et al., Science, 203, 1073-1083, 1979, Submarine thermal springs on the Galapagos Rift
Corliss, JB et al. (1978) The chemistry of hydrothermal mounds near the Galapagos rift. Earth and Planetary Science Letters 40, 12–24
[Williams et al. (1979) The hydrothermal mounds of the Galapagos Rift: Observations with DSRV Alvin and detailed heat flow studies. Journal of Geophysical Research 84(B13): 7467-7484.]
Other References (text): 
[Lalou et al., Ocean. Acta, 7, 261-270, 1984.]