Ashadze 4 | InterRidge Vents Database

Feature ID in MGDS:

Ashadze4

Activity:

inactive

Temperature

If provided, Maximum temperature in degrees Celsius. If provided, Maximum temperature category distinguishes High (e.g., chimneys, black smokers) vs. Low (e.g., diffuse flow).

Maximum Temperature Category:

NotApplicable

Location

Latitude:

12.9700

Longitude:

-44.8500

Ocean:

N. Atlantic

Region:

N MAR

National Jurisdiction:

high seas

Depth (m)

Depth of hydrothermal activity and/or deposits (m below sea level).

Maximum or Single Reported Depth:

4530

Tectonic Setting Category:

mid-ocean ridge

Full Spreading Rate (mm/a):

26.2

Host Rock:

basalt-hosted

Deposit Type:

NotProvided

Notes on Vent Field Description:

located on rift valley floor; Fouquet, Y et al. (2007): Basaltic hosted deposits are dominated by sphalerite and pyrite at Ashadze 4

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

2007 ROV VICTOR 6000 did not find hydrothermal activity

References

[References in brackets not consulted in full by InterRidge Coordinator 2009]

Discovery References (text):

(inactive) Fouquet, Y et al. (2007) Diversity of Ultramafic Hosted Hydrothermal Deposits on the Mid Atlantic Ridge: First Submersible Studies on Ashadze, Logatchev 2 and Krasnov Vent Fields During the Serpentine Cruise. American Geophysical Union, Fall Meeting 2007, abstract #T51F-03.

Other References (text):

Cherkashov, G., et al. (2010) Seafloor Massive Sulfides from the Northern Equatorial Mid-Atlantic Ridge: New Discoveries and Perspectives. Marine Georesources & Geotechnology 28: 222-239, http://dx.doi.org/10.1080/1064119X.2010.483308