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Bogdanov, Yury A; Lein, Alla Yu; Sagalevich, Anatoly M (2005): Chemical composition of hydrothermal deposits and vulcanites from the Menez Gwen vent field, Mid-Atlantic Ridge. PANGAEA,, Supplement to: Bogdanov, YA et al. (2005): Chemical composition of the hydrothermal deposits of the Menez Gwen vent field (Mid-Atlantic Ridge). Translated from Okeanologiya, 2005, 45(6), 897-905, Oceanology, 45(6), 849-856

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Surface hydrothermal deposits of the shallow-water Menez Gwen vent field located in the rift zone of the Mid-Atlantic Ridge are mostly composed of nonmetalliferous minerals in contrast to sulfide deposits of deep-water fields. Here sulfide minerals occur only in dispersed form. High-temperature sulfide deposits strongly enriched in copper and zinc occur only immediately below the surface of the bottom. This is related to subsurface boiling and phase separation of initial high-temperature hydrothermal ore-bearing solution that ascends from the interior to the floor surface.
Latitude: 37.840000 * Longitude: -31.520000
AMK49-4574 * Latitude: 37.840000 * Longitude: -31.520000 * Elevation Start: -847.0 m * Elevation End: -871.0 m * Location: Menez Gwen vent field, Central North Atlantic * Campaign: AMK49 * Basis: Akademik Mstislav Keldysh * Device: MIR deep-sea manned submersible (MIR)
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