Forming of hydrogeochemical dispersion halos in discharge zones of thermal solutions оn the Mid-Atlantic Ridge
Authors:
About authors
- Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
Abstract
Features of submarine hydrothermal discharge and geochemical anomalies in bottom waters of Mid-Atlantic Ridge are observed. In the typical section of hydrothermal halos two major zones could be distinguished: forming by the rising stream gravitationally non-stable structures and more stable formations on the horizon of lateral flow. Discrete structure of hydrothermal plumes and matter differentiation are discussed. Different types of fluid discharge are revealed on the Logatchev field. As a result three kinds of hydrothermal plumes are forming: of positive, neutral and negative buoyancy.
Область исследования:
(Archived) Geology and metallogeny
References
- Sudarikov S.M., Kaminsky D.V. Features of bottom waters geochemistry in discharge zones of hydrothermal solutions of mid-ocean ridges // Geochimia. 2010. N.3. P. 317- 321.
- Sudarikov S.M., Cherkashov G.A. Structure of hydrothermal plumes of the Pacific and Atlantic oceans // Doklady of the Academy of Sciences. 1993. V.330, N. 6. P.757- 759.
- Rudnicki M.D. Particle formation, fallout and cycling within the buoyant and non- buoyant plume above the TAG vent field // Hydrothermal Vents and Processes, Geological Society Special Publication. 1995. N. 87. P.387- 396.
- Sudarikov S.M., Roumiantsev A.B . Structure of hydrothermal plumes at the Logatchev vent field, 14o45’N, Mid -Atlantic Ridge: evidence from geochemical and geophysical data // Journal of Volcanology and Geothermal Research. 2000. 101 . Р.245- 252.
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