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EPR, 13 N, Marginal High
Name Alias(es):
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
Activity:
Maximum Temperature:
260
Latitude:
12.7090
Longitude:
-103.9160
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
2650
Minimum Depth (mbsl):
Tectonic setting:
Full Spreading Rate (mm/a):
91.1
Host Rock:
NotProvided
Deposit Type:
PMS
Notes on Vent Field Description:
Fouquet et al. (1988): "Warm water diffusing through a chimney was observed near the top on the western side of the deposit."; 2003 submersible Alvin dive #3940: "Very large massive sulfide deposit with late stage hydrothermal venting up to 260 degrees C"
Notes Relevant to Biology:
Alvin dive 3940 log includes "Tube worms, Other worms, Bacterial mats, Vent fish, Anemones, Sea cucumbers, Urchins, Sea stars, Sponges, Xenophyophores, Non-vent fish, Hi temp vents, Lo temp vents, Inactive vent deposits, Basalt lava"
Year and How Discovered (if active, visual confirmation is listed first):
1984 submersible Cyana; 1981 towed camera, dredging, and plume did not confirm activity
Discovery References (text):
Y Fouquet et al., Mar. Geol., 84, 145-178, 1988, Geological setting and mineralogical and geochemical investigations on sulfide deposits near 13 N on the East Pacific Rise
(did not confirm activity) Hekinian, R. et al. (1983) East Pacific Rise near 13 N: geology of new hydrothermal fields. Science 219: 1321-1324.
Other References (text):
RDF link: