EPR, 11 30'N

Name Alias(es):

Zone B

MGDS_FeatureID lowest in hierarchy:

EPR

Vent Sites:

Activity:

active, inferred

Maximum Temperature:

Latitude:

11.4833

Longitude:

-103.7833

Location on map:

Ocean:

N. Pacific

Region:

N EPR

National Jurisdiction:

high seas

Maximum or Single Reported Depth (mbsl):

2422

Minimum Depth (mbsl):

Tectonic setting:

mid-ocean ridge

Full Spreading Rate (mm/a):

95.8

Volcano Number (if applicable):

Host Rock:

basalt-hosted

Deposit Type:

NotProvided

Notes on Vent Field Description:

depth appears to be too shallow - from Hekinian Alvin dive #1996; Hekinian, R. et al. (1983): "…found indications of hydrothermal activity from hydrocasts and sea-floor photographs"

Notes Relevant to Biology:

NotProvided

Year and How Discovered (if active, visual confirmation is listed first):

1981 towed camera and plume did not confirm activity; 1988 submersible Alvin dive #1996 (need reference to confirm activity)

Discovery References (text):

(did not confirm activity) Hekinian, R. et al. (1983) East Pacific Rise near 13 N: geology of new hydrothermal fields. Science 219: 1321-1324

NEED CITATION for 1988 Alvin dive.

Other References (text):

Baker et al., Earth Planet. Sci. Lett. 128, 1-17, 1994, Hydrothermal plumes along the East Pacific Rise, 8°40′ to 11°50′N: Plume distribution and relationship to the apparent magmatic budget, doi:10.1016/0012-821X(94)90022-1.

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