Инд. авторы: | Bessonova E.P., Bortnikova S.B., Gora M.P., Manstein Y.A., Shevko A.Y., Panin G.L., Manstein A.K. |
Заглавие: | Geochemical and geo-electrical study of mud pools at the Mutnovsky volcano (South Kamchatka, Russia): Behavior of elements, structures of feeding channels and a model of origin |
Библ. ссылка: | Bessonova E.P., Bortnikova S.B., Gora M.P., Manstein Y.A., Shevko A.Y., Panin G.L., Manstein A.K. Geochemical and geo-electrical study of mud pools at the Mutnovsky volcano (South Kamchatka, Russia): Behavior of elements, structures of feeding channels and a model of origin // Applied Geochemistry. - 2012. - Vol.27. - Iss. 9. - P.1829-1843. - ISSN 0883-2927. |
Внешние системы: | DOI: 10.1016/j.apgeochem.2012.02.018; SCOPUS: 2-s2.0-84865344164; |
Реферат: | eng: This study presents data on the geochemical composition of boiling mud pools at the Mutnovsky volcano. The physicochemical characteristics of the pools and the concentrations of major, minor and trace elements in pool solutions vary widely. A comparison of the geochemical compositions of host rocks and solutions indicates that leaching from rocks is not the only source of chemicals in thermal solutions. Geophysical studies reveal the inner structure of thermal fields, which reflect the shapes of the underground reservoirs and feed channels. Using geophysical methods (electrical resistivity tomography and frequency domain investigations), it was shown that the vertical structure and complex geochemical zonation of the feed channels leads to a high contrast in the compositions of the mud solutions. These findings answer questions about the origin and composition of surface manifestations. To elucidate the mechanisms of solution formation, an attempt was made to describe the magmatic fluid evolution and the resulting mixing of waters by physical and mathematical models. The model illustrates fluid migration from a magma chamber to the surface. It is shown that the formation of brines corresponding to the mud pool composition is possible during secondary boiling. © 2012 Elsevier Ltd.
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Ключевые слова: | Electrical resistivity tomography; Feed channel; Fluid migration; Frequency domains; Geochemical composition; Geophysical methods; Leaching; Mathematical models; Phase transitions; Underground reservoirs; Volcanoes; Russian Federation; Mutnovsky Volcano; Kamchatka; thermal spring; physicochemical property; numerical model; magmatism; igneous geochemistry; host rock; geophysical method; brine; Lakes; Geophysics; Geochemistry; Vertical structures; Thermal solution; Thermal field; Surface manifestations; Solution formation; Physicochemical characteristics; Mutnovsky; Magmatic fluids; Magma chamber; Kamchatka; Inner structure; Host rocks; High contrast; |
Издано: | 2012 |
Физ. характеристика: | с.1829-1843 |