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E Los Huellos Caldera

Name Alias(es): 
90 33'W, Galapagos Rift
MGDS_FeatureID lowest in hierarchy: 
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: 
Notes on Vent Field Description: 
Baker et al. (2006): "Only three areas of extensive and intense plumes were observed: 90.52°-90.63°W,…"; Haymon et al. (2008): "On the west rim of the caldera (depth = 1533 m), we found an extensive field of long-extinct mineral deposits and weathered hydrothermal chimneys. No other sites of past or present high-temperature vents were located. Probably there is currently a source of high-temperature focused flow within East Los Huellos Caldera that is producing the detected plume..."; located within the Galapagos Marine Reserve (UNESCO Natural World Heritage Site)
Notes Relevant to Biology: 
Year and How Discovered (if active, visual confirmation is listed first): 
2005 plume only; 2005 towed video Medea did not confirm activity
Discovery References (text): 
(plume only) Baker, E. T., et al. (2008), High-resolution surveys along the hot spot–affected Galápagos Spreading Center: 1. Distribution of hydrothermal activity, Geochem. Geophys. Geosyst., 9, Q09003, doi:10.1029/2008GC002028
(plume only) E. Baker et al., Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V14A-06, 2006, Hydrothermal Plume Mapping Along the Hotspot-affected Galapagos Spreading Center Finds High-Temperature Vent Sites are Anomalously Scarce
(inactive only) Haymon R. M., et al. (2008), High-resolution surveys along the hot spot–affected Gálapagos Spreading Center: 3. Black smoker discoveries and the implications for geological controls on hydrothermal activity, Geochem. Geophys. Geosyst., 9, Q12006, doi:10.1029/2008GC002114.
Other References (text): 
Anderson, P et al. (2006) Visual Observations and Geologic Settings of the Newly-Discovered Black Smoker Vent Sites Across the Galapagos Ridge-Hotspot Intersection. AGU Fall Meeting 2006, abstract V23A-0592
Haymon, R.M. et al. (2007) Hunting for hydrothermal vents along the Galapagos Spreading Center. Oceanography 20(4): 100-107.