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Posteruption chemical evolution of a volcanic caldera lake: Karymsky Lake, Kamchatka

Taran Yuri, Inguaggiato Salvatore, Cardellini Carlo, Karpov Gennady (2013) Posteruption chemical evolution of a volcanic caldera lake: Karymsky Lake, Kamchatka // Geophysical Research Letters. Vol. 40, No. 19. pp. 5142-5146. doi: 10.1002/grl.50961.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1002/grl.50961

Abstract

The 1996 short-lived subaqueous eruption at the Karymsky caldera lake suddenly changed the composition of the lake water. The lake, with a surface area of ∼10 km^2 and a volume of ∼0.5 km^3, became acidic, increased its salinity to ∼1000 mg/kg, and became dominated by SO4^2- and Ca^2+. Since the eruption, the lake chemistry has evolved in a predictable manner described by simple box model. As a result of dilution by incoming SO4-Ca-Mg-poor water, SO4, Ca, and Mg concentrations follow a simple exponential decrease with a characteristic time close to the residence time of the lake. Na, K, and Cl decrease relatively significantly slower, indicating a continuing input of these constituents into the lake that was initiated during the eruption. Thus, the dynamics of two groups of lake water solutes can be predicted by a simple box model for water and solute mass balance. Key Points Karymsky lake suddenly changed chemistry as a result of the 1996 eruption One-box dynamic model correctly describes the evolution of the lake chemistry The calculated fluxes of chemicals are in a good agreement with the field data
Item Type: Article
Title: Posteruption chemical evolution of a volcanic caldera lake: Karymsky Lake, Kamchatka
Language: English
Journal or Publication Title: Geophysical Research Letters
ISSN Print: 0094-8276
ISSN Online: 1944-8007
Uncontrolled Keywords: Box model; Caldera lake; Hydrochemistry; Karymsky
Subjects: State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.37 Петрография > 38.37.25 Вулканология
State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.61 Гидрогеология > 38.61.17 Гидрогеохимия
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Karymsky
Depositing User: И.М. Романова
Date Deposited: 06 Dec 2013 22:57
Last Modified: 23 Jan 2019 23:30
URI: http://repo.kscnet.ru/id/eprint/1073

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