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Montserrat-Marie Galante fault
Activity:
Latitude:
16.4600
Longitude:
-61.9820
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1000
Tectonic setting:
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
Polyak et al. (1992): "Soviet-French survey carried out on board of the R.V. Akademik N. Strakhov, between Guadeloupe and Montserrat... evidence of submarine hydrothermal activity was discovered on the southeastern tip of the Shoe-Rock escarpment... geochemical anomalies in seawater near the sea bottom, showing enrichment in mantle-derived 3He... Further investigations along the submerged segments of the Montserrat-Marie Galante fault should probably lead to other discoveries of hydrothermal venting..."; in addition Polyak et al. (1992) mention Bouillante as being a high temperature field on this fault that includes shallow submarine hot springs offshore Guadeloupe Island
Year and How Discovered (if active, visual confirmation is listed first):
1987 plume and deposits
Discovery References (text):
Polyak, B.G., et al. (1992) Evidence of submarine hydrothermal discharge to the northwest of Guadeloupe Island (Lesser Antilles island arc). Journal of Volcanology and Geothermal Research, 54, 81-105, doi:10.1016/0377-0273(92)90116-U.
RDF link: