1995-023754

Bougault, H.

L'Hydrothermalisme oceanique Oceanic hydrothermalism

Oceanography; Solid-earth geophysics; Atlantic Ocean; back-arc basins; basins; black smokers; brines; communities; crust; Deep Sea Drilling Project; degassing; East Pacific; East Pacific Ocean Islands; East Pacific Rise; Fiji; fluid phase; Galapagos Islands; geochemical anomalies; geochemistry; He-4/He-3; heat flux; helium; high temperature; hydrochemistry; hydrology; hydrothermal alteration; hydrothermal processes; hydrothermal vents; ion exchange; iron ores; isotopes; Juan de Fuca Ridge; Lau Basin; lithosphere; manganese ores; Melanesia; metal ores; metasomatism; Mid-Atlantic Ridge; mid-ocean ridges; mineral deposits, genesis; mineralization; noble gases; North Atlantic; North Atlantic Ridge; North Pacific; Northeast Pacific; ocean floors; Oceania; oceanic crust; Pacific Ocean; percolation; plate tectonics; plumes; polymetallic ores; sea water; sea-floor spreading; sedimentation; sedimentation rates; South Pacific; Southeast Pacific; stable isotopes; sulfides; temperature; thermal anomalies;