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HYDROTHERMAL VENT [1 record]

Record 1 2006-06-06

English

Subject field(s)
  • Vulcanology and Seismology
  • Oceanography
  • Thermal Springs - Uses
DEF

Crack along a rift or ridge in the deep ocean floor that spews out water heated to high temperatures by the magma under the earth's crust.

CONT

Hydrothermal vents are fissures in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found in places that are also volcanically active, where hot magma is relatively near the planet's surface.

CONT

Some insight on gold in volcanogenic massive sulphide systems has ... been gained from an evaluation of data from hydrothermal vents on the modern seafloor ...

French

Domaine(s)
  • Volcanologie et sismologie
  • Océanographie
  • Thermalisme
CONT

Rides ou dorsales océaniques actives. Ce sont de vastes reliefs sous-marins qui occupent près du tiers de la surface des océans [...]. L'exploration récente du rift des dorsales océaniques [...] a apporté une moisson de surprenantes observations parmi lesquelles : [...] - L'existence de bouches hydrothermales crachant soit une eau blanchâtre à 300° («fumeurs blancs») soit une eau rendue opaque par les particules de sulfures («fumeurs noirs») encore plus chaude, 350°.

CONT

[...] on a acquis certaines connaissances sur le comportement de l'or dans les systèmes à amas de sulfures massifs associés à des roches volcaniques en évaluant des données provenant de l'étude des griffons hydrothermaux qui parsèment les fonds océaniques actuels [...]

Spanish

Campo(s) temático(s)
  • Vulcanología y sismología
  • Oceanografía
  • Fuentes termales - usos
CONT

A finales de los años setenta, se descubrieron varios humeros o surgencias hidrotermales en fondos marinos, cerca de las islas Galápagos.

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