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Lucky Strike
Name Alias(es):
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
2607Vent
2608Vent
Bairro-Alto
Crystal
Eiffel Tower
Elisabeth
Fantome
Helene
Isabel
JasonVent
Marker4
Marker6
Marker7
Montsegur
Nuno
Petit Chimiste
Pico
PPS
Sintra
Statue of Liberty
White Castle
Y3
Activity:
Maximum Temperature:
333
Latitude:
37.2933
Longitude:
-32.2733
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1740
Minimum Depth (mbsl):
1600
Tectonic setting:
Full Spreading Rate (mm/a):
20.2
Host Rock:
E-MORB
Deposit Type:
PMS
Notes on Vent Field Description:
first Atlantic site found on crust that is dominated by a hot spot signature; one of the largest vent fields with 21 chimneys; active vent sites are dispersed over an area at least 700 m long and 300 m wide; vents (170-324°C) surround lava lake on the summit of a large axial volcano; 3.8-4.5 pH, fluids depleted in sulfides but enriched in methane; in MOMAR area, which is designated for long-term monitoring efforts; specifically chosen for ESONET non-cabled observatory; reported in 2007 as MPA in OSPAR Network
Notes Relevant to Biology:
Alvinocarididae, Bythograeidae, Mytilidae (mussel dominated, as compared to shrimp-dominated Rainbow site), Polynoidae, Zoarcidae, gastropods; shares some species with the TAG and Snake Pit sites but many species discovered here
Year and How Discovered (if active, visual confirmation is listed first):
1993 submersible Alvin; 1992 dredge and plume only
Discovery References (text):
Langmuir, et al. (1993) Geological setting and characteristics of the Lucky Strike vent field at 37°17′N on the Mid-Atlantic Ridge, EOS Trans. AGU 74: 99 (AGU Fall Meeting 1993)
C Langmuir et al. (1997) Hydrothermal vents near a mantle hot spot: the Lucky Strike vent field at 37°N on the Mid-Atlantic Ridge. Earth Plan Sci Lett 148: 69-91
(plume only) Chin et al., Earth Planet. Sci. Lett. 162, 1-13, 1998, Detection of hydrothermal plumes on the northern Mid-Atlantic Ridge: results from optical measurements.
Other References (text):
Ondreas et al. (2009) Recent volcanic events and the distribution of hydrothermal venting at the Lucky Strike hydrothermal field, Mid-Atlantic Ridge. Geochem. Geophys. Geosyst., 10, Q02006, doi:10.1029/2008GC002171.
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