The Alteration of Effusive Rocks Due to Acidic Leaching by Shallow Thermal Waters: The Baranskii Geothermal System, Iturup Island

Ladygin, V.M.; Frolova, Y.V.; Rychagov, S.N.

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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.

Авторы: Ladygin V.M., Frolova Yu V., Rychagov S.N.
Журнал: Journal of Volcanology and Seismology
Том: 8
Номер: 1
Год издания: 2014
Издательство: Springer Verlag
Местоположение издательства: Germany
Первая страница: 17
Последняя страница: 33
DOI: 10.1134/S0742046314010035
Аннотация: This paper discusses patterns that are observable in the alteration of effusive rocks that were discharged by Baranskii Volcano (central Iturup Island) under the action of sulfate chloride as well as acidic and ultra acidic water (in the Kipyashchaya Rechka thermal brook). We acquired data on changes in the chemical and mineralogic composition of the rocks, structural features, porosity, and petrophysical properties. The dynamics of leaching and the leaching phase in a flowing acidic (ultra acidic) geothermal environment are described. We note that the mechanism that is responsible for hydrogen sulfate leaching of rocks at the ground surface may be largely analogous to the generation of secondary quartzites (monoquartzites) in the zones of ascending acidic gas flows above small gabbro–diorite and diorite intrusions.
Добавил в систему: Фролова Юлия Владимировна

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The Alteration of Effusive Rocks Due to Acidic Leaching by Shallow Thermal Waters: The Baranskii Geothermal System, Iturup Islandстатья

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